refactor(数据库): 迁移持久层到 Ent 并清理 GORM

将仓储层/基础设施改为 Ent + 原生 SQL 执行路径，并移除 AutoMigrate 与 GORM 依赖。
重构内容包括：
- 仓储层改用 Ent/SQL（含 usage_log/account 等复杂查询），统一错误映射
- 基础设施与 setup 初始化切换为 Ent + SQL migrations
- 集成测试与 fixtures 迁移到 Ent 事务模型
- 清理遗留 GORM 模型/依赖，补充迁移与文档说明
- 增加根目录 Makefile 便于前后端编译

测试：
- go test -tags unit ./...
- go test -tags integration ./...

backend/ent/hook/hook.go

+// Code generated by ent, DO NOT EDIT.
+
+package hook
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/Wei-Shaw/sub2api/ent"
+)
+
+// The AccountFunc type is an adapter to allow the use of ordinary
+// function as Account mutator.
+type AccountFunc func(context.Context, *ent.AccountMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f AccountFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	if mv, ok := m.(*ent.AccountMutation); ok {
+		return f(ctx, mv)
+	}
+	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.AccountMutation", m)
+}
+
+// The AccountGroupFunc type is an adapter to allow the use of ordinary
+// function as AccountGroup mutator.
+type AccountGroupFunc func(context.Context, *ent.AccountGroupMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f AccountGroupFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	if mv, ok := m.(*ent.AccountGroupMutation); ok {
+		return f(ctx, mv)
+	}
+	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.AccountGroupMutation", m)
+}
+
+// The ApiKeyFunc type is an adapter to allow the use of ordinary
+// function as ApiKey mutator.
+type ApiKeyFunc func(context.Context, *ent.ApiKeyMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f ApiKeyFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	if mv, ok := m.(*ent.ApiKeyMutation); ok {
+		return f(ctx, mv)
+	}
+	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.ApiKeyMutation", m)
+}
+
+// The GroupFunc type is an adapter to allow the use of ordinary
+// function as Group mutator.
+type GroupFunc func(context.Context, *ent.GroupMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f GroupFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	if mv, ok := m.(*ent.GroupMutation); ok {
+		return f(ctx, mv)
+	}
+	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.GroupMutation", m)
+}
+
+// The ProxyFunc type is an adapter to allow the use of ordinary
+// function as Proxy mutator.
+type ProxyFunc func(context.Context, *ent.ProxyMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f ProxyFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	if mv, ok := m.(*ent.ProxyMutation); ok {
+		return f(ctx, mv)
+	}
+	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.ProxyMutation", m)
+}
+
+// The RedeemCodeFunc type is an adapter to allow the use of ordinary
+// function as RedeemCode mutator.
+type RedeemCodeFunc func(context.Context, *ent.RedeemCodeMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f RedeemCodeFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	if mv, ok := m.(*ent.RedeemCodeMutation); ok {
+		return f(ctx, mv)
+	}
+	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.RedeemCodeMutation", m)
+}
+
+// The SettingFunc type is an adapter to allow the use of ordinary
+// function as Setting mutator.
+type SettingFunc func(context.Context, *ent.SettingMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f SettingFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	if mv, ok := m.(*ent.SettingMutation); ok {
+		return f(ctx, mv)
+	}
+	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.SettingMutation", m)
+}
+
+// The UserFunc type is an adapter to allow the use of ordinary
+// function as User mutator.
+type UserFunc func(context.Context, *ent.UserMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f UserFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	if mv, ok := m.(*ent.UserMutation); ok {
+		return f(ctx, mv)
+	}
+	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.UserMutation", m)
+}
+
+// The UserAllowedGroupFunc type is an adapter to allow the use of ordinary
+// function as UserAllowedGroup mutator.
+type UserAllowedGroupFunc func(context.Context, *ent.UserAllowedGroupMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f UserAllowedGroupFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	if mv, ok := m.(*ent.UserAllowedGroupMutation); ok {
+		return f(ctx, mv)
+	}
+	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.UserAllowedGroupMutation", m)
+}
+
+// The UserSubscriptionFunc type is an adapter to allow the use of ordinary
+// function as UserSubscription mutator.
+type UserSubscriptionFunc func(context.Context, *ent.UserSubscriptionMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f UserSubscriptionFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	if mv, ok := m.(*ent.UserSubscriptionMutation); ok {
+		return f(ctx, mv)
+	}
+	return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.UserSubscriptionMutation", m)
+}
+
+// Condition is a hook condition function.
+type Condition func(context.Context, ent.Mutation) bool
+
+// And groups conditions with the AND operator.
+func And(first, second Condition, rest ...Condition) Condition {
+	return func(ctx context.Context, m ent.Mutation) bool {
+		if !first(ctx, m) || !second(ctx, m) {
+			return false
+		}
+		for _, cond := range rest {
+			if !cond(ctx, m) {
+				return false
+			}
+		}
+		return true
+	}
+}
+
+// Or groups conditions with the OR operator.
+func Or(first, second Condition, rest ...Condition) Condition {
+	return func(ctx context.Context, m ent.Mutation) bool {
+		if first(ctx, m) || second(ctx, m) {
+			return true
+		}
+		for _, cond := range rest {
+			if cond(ctx, m) {
+				return true
+			}
+		}
+		return false
+	}
+}
+
+// Not negates a given condition.
+func Not(cond Condition) Condition {
+	return func(ctx context.Context, m ent.Mutation) bool {
+		return !cond(ctx, m)
+	}
+}
+
+// HasOp is a condition testing mutation operation.
+func HasOp(op ent.Op) Condition {
+	return func(_ context.Context, m ent.Mutation) bool {
+		return m.Op().Is(op)
+	}
+}
+
+// HasAddedFields is a condition validating `.AddedField` on fields.
+func HasAddedFields(field string, fields ...string) Condition {
+	return func(_ context.Context, m ent.Mutation) bool {
+		if _, exists := m.AddedField(field); !exists {
+			return false
+		}
+		for _, field := range fields {
+			if _, exists := m.AddedField(field); !exists {
+				return false
+			}
+		}
+		return true
+	}
+}
+
+// HasClearedFields is a condition validating `.FieldCleared` on fields.
+func HasClearedFields(field string, fields ...string) Condition {
+	return func(_ context.Context, m ent.Mutation) bool {
+		if exists := m.FieldCleared(field); !exists {
+			return false
+		}
+		for _, field := range fields {
+			if exists := m.FieldCleared(field); !exists {
+				return false
+			}
+		}
+		return true
+	}
+}
+
+// HasFields is a condition validating `.Field` on fields.
+func HasFields(field string, fields ...string) Condition {
+	return func(_ context.Context, m ent.Mutation) bool {
+		if _, exists := m.Field(field); !exists {
+			return false
+		}
+		for _, field := range fields {
+			if _, exists := m.Field(field); !exists {
+				return false
+			}
+		}
+		return true
+	}
+}
+
+// If executes the given hook under condition.
+//
+//	hook.If(ComputeAverage, And(HasFields(...), HasAddedFields(...)))
+func If(hk ent.Hook, cond Condition) ent.Hook {
+	return func(next ent.Mutator) ent.Mutator {
+		return ent.MutateFunc(func(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+			if cond(ctx, m) {
+				return hk(next).Mutate(ctx, m)
+			}
+			return next.Mutate(ctx, m)
+		})
+	}
+}
+
+// On executes the given hook only for the given operation.
+//
+//	hook.On(Log, ent.Delete|ent.Create)
+func On(hk ent.Hook, op ent.Op) ent.Hook {
+	return If(hk, HasOp(op))
+}
+
+// Unless skips the given hook only for the given operation.
+//
+//	hook.Unless(Log, ent.Update|ent.UpdateOne)
+func Unless(hk ent.Hook, op ent.Op) ent.Hook {
+	return If(hk, Not(HasOp(op)))
+}
+
+// FixedError is a hook returning a fixed error.
+func FixedError(err error) ent.Hook {
+	return func(ent.Mutator) ent.Mutator {
+		return ent.MutateFunc(func(context.Context, ent.Mutation) (ent.Value, error) {
+			return nil, err
+		})
+	}
+}
+
+// Reject returns a hook that rejects all operations that match op.
+//
+//	func (T) Hooks() []ent.Hook {
+//		return []ent.Hook{
+//			Reject(ent.Delete|ent.Update),
+//		}
+//	}
+func Reject(op ent.Op) ent.Hook {
+	hk := FixedError(fmt.Errorf("%s operation is not allowed", op))
+	return On(hk, op)
+}
+
+// Chain acts as a list of hooks and is effectively immutable.
+// Once created, it will always hold the same set of hooks in the same order.
+type Chain struct {
+	hooks []ent.Hook
+}
+
+// NewChain creates a new chain of hooks.
+func NewChain(hooks ...ent.Hook) Chain {
+	return Chain{append([]ent.Hook(nil), hooks...)}
+}
+
+// Hook chains the list of hooks and returns the final hook.
+func (c Chain) Hook() ent.Hook {
+	return func(mutator ent.Mutator) ent.Mutator {
+		for i := len(c.hooks) - 1; i >= 0; i-- {
+			mutator = c.hooks[i](mutator)
+		}
+		return mutator
+	}
+}
+
+// Append extends a chain, adding the specified hook
+// as the last ones in the mutation flow.
+func (c Chain) Append(hooks ...ent.Hook) Chain {
+	newHooks := make([]ent.Hook, 0, len(c.hooks)+len(hooks))
+	newHooks = append(newHooks, c.hooks...)
+	newHooks = append(newHooks, hooks...)
+	return Chain{newHooks}
+}
+
+// Extend extends a chain, adding the specified chain
+// as the last ones in the mutation flow.
+func (c Chain) Extend(chain Chain) Chain {
+	return c.Append(chain.hooks...)
+}

backend/ent/intercept/intercept.go

+// Code generated by ent, DO NOT EDIT.
+
+package intercept
+
+import (
+	"context"
+	"fmt"
+
+	"entgo.io/ent/dialect/sql"
+	"github.com/Wei-Shaw/sub2api/ent"
+	"github.com/Wei-Shaw/sub2api/ent/account"
+	"github.com/Wei-Shaw/sub2api/ent/accountgroup"
+	"github.com/Wei-Shaw/sub2api/ent/apikey"
+	"github.com/Wei-Shaw/sub2api/ent/group"
+	"github.com/Wei-Shaw/sub2api/ent/predicate"
+	"github.com/Wei-Shaw/sub2api/ent/proxy"
+	"github.com/Wei-Shaw/sub2api/ent/redeemcode"
+	"github.com/Wei-Shaw/sub2api/ent/setting"
+	"github.com/Wei-Shaw/sub2api/ent/user"
+	"github.com/Wei-Shaw/sub2api/ent/userallowedgroup"
+	"github.com/Wei-Shaw/sub2api/ent/usersubscription"
+)
+
+// The Query interface represents an operation that queries a graph.
+// By using this interface, users can write generic code that manipulates
+// query builders of different types.
+type Query interface {
+	// Type returns the string representation of the query type.
+	Type() string
+	// Limit the number of records to be returned by this query.
+	Limit(int)
+	// Offset to start from.
+	Offset(int)
+	// Unique configures the query builder to filter duplicate records.
+	Unique(bool)
+	// Order specifies how the records should be ordered.
+	Order(...func(*sql.Selector))
+	// WhereP appends storage-level predicates to the query builder. Using this method, users
+	// can use type-assertion to append predicates that do not depend on any generated package.
+	WhereP(...func(*sql.Selector))
+}
+
+// The Func type is an adapter that allows ordinary functions to be used as interceptors.
+// Unlike traversal functions, interceptors are skipped during graph traversals. Note that the
+// implementation of Func is different from the one defined in entgo.io/ent.InterceptFunc.
+type Func func(context.Context, Query) error
+
+// Intercept calls f(ctx, q) and then applied the next Querier.
+func (f Func) Intercept(next ent.Querier) ent.Querier {
+	return ent.QuerierFunc(func(ctx context.Context, q ent.Query) (ent.Value, error) {
+		query, err := NewQuery(q)
+		if err != nil {
+			return nil, err
+		}
+		if err := f(ctx, query); err != nil {
+			return nil, err
+		}
+		return next.Query(ctx, q)
+	})
+}
+
+// The TraverseFunc type is an adapter to allow the use of ordinary function as Traverser.
+// If f is a function with the appropriate signature, TraverseFunc(f) is a Traverser that calls f.
+type TraverseFunc func(context.Context, Query) error
+
+// Intercept is a dummy implementation of Intercept that returns the next Querier in the pipeline.
+func (f TraverseFunc) Intercept(next ent.Querier) ent.Querier {
+	return next
+}
+
+// Traverse calls f(ctx, q).
+func (f TraverseFunc) Traverse(ctx context.Context, q ent.Query) error {
+	query, err := NewQuery(q)
+	if err != nil {
+		return err
+	}
+	return f(ctx, query)
+}
+
+// The AccountFunc type is an adapter to allow the use of ordinary function as a Querier.
+type AccountFunc func(context.Context, *ent.AccountQuery) (ent.Value, error)
+
+// Query calls f(ctx, q).
+func (f AccountFunc) Query(ctx context.Context, q ent.Query) (ent.Value, error) {
+	if q, ok := q.(*ent.AccountQuery); ok {
+		return f(ctx, q)
+	}
+	return nil, fmt.Errorf("unexpected query type %T. expect *ent.AccountQuery", q)
+}
+
+// The TraverseAccount type is an adapter to allow the use of ordinary function as Traverser.
+type TraverseAccount func(context.Context, *ent.AccountQuery) error
+
+// Intercept is a dummy implementation of Intercept that returns the next Querier in the pipeline.
+func (f TraverseAccount) Intercept(next ent.Querier) ent.Querier {
+	return next
+}
+
+// Traverse calls f(ctx, q).
+func (f TraverseAccount) Traverse(ctx context.Context, q ent.Query) error {
+	if q, ok := q.(*ent.AccountQuery); ok {
+		return f(ctx, q)
+	}
+	return fmt.Errorf("unexpected query type %T. expect *ent.AccountQuery", q)
+}
+
+// The AccountGroupFunc type is an adapter to allow the use of ordinary function as a Querier.
+type AccountGroupFunc func(context.Context, *ent.AccountGroupQuery) (ent.Value, error)
+
+// Query calls f(ctx, q).
+func (f AccountGroupFunc) Query(ctx context.Context, q ent.Query) (ent.Value, error) {
+	if q, ok := q.(*ent.AccountGroupQuery); ok {
+		return f(ctx, q)
+	}
+	return nil, fmt.Errorf("unexpected query type %T. expect *ent.AccountGroupQuery", q)
+}
+
+// The TraverseAccountGroup type is an adapter to allow the use of ordinary function as Traverser.
+type TraverseAccountGroup func(context.Context, *ent.AccountGroupQuery) error
+
+// Intercept is a dummy implementation of Intercept that returns the next Querier in the pipeline.
+func (f TraverseAccountGroup) Intercept(next ent.Querier) ent.Querier {
+	return next
+}
+
+// Traverse calls f(ctx, q).
+func (f TraverseAccountGroup) Traverse(ctx context.Context, q ent.Query) error {
+	if q, ok := q.(*ent.AccountGroupQuery); ok {
+		return f(ctx, q)
+	}
+	return fmt.Errorf("unexpected query type %T. expect *ent.AccountGroupQuery", q)
+}
+
+// The ApiKeyFunc type is an adapter to allow the use of ordinary function as a Querier.
+type ApiKeyFunc func(context.Context, *ent.ApiKeyQuery) (ent.Value, error)
+
+// Query calls f(ctx, q).
+func (f ApiKeyFunc) Query(ctx context.Context, q ent.Query) (ent.Value, error) {
+	if q, ok := q.(*ent.ApiKeyQuery); ok {
+		return f(ctx, q)
+	}
+	return nil, fmt.Errorf("unexpected query type %T. expect *ent.ApiKeyQuery", q)
+}
+
+// The TraverseApiKey type is an adapter to allow the use of ordinary function as Traverser.
+type TraverseApiKey func(context.Context, *ent.ApiKeyQuery) error
+
+// Intercept is a dummy implementation of Intercept that returns the next Querier in the pipeline.
+func (f TraverseApiKey) Intercept(next ent.Querier) ent.Querier {
+	return next
+}
+
+// Traverse calls f(ctx, q).
+func (f TraverseApiKey) Traverse(ctx context.Context, q ent.Query) error {
+	if q, ok := q.(*ent.ApiKeyQuery); ok {
+		return f(ctx, q)
+	}
+	return fmt.Errorf("unexpected query type %T. expect *ent.ApiKeyQuery", q)
+}
+
+// The GroupFunc type is an adapter to allow the use of ordinary function as a Querier.
+type GroupFunc func(context.Context, *ent.GroupQuery) (ent.Value, error)
+
+// Query calls f(ctx, q).
+func (f GroupFunc) Query(ctx context.Context, q ent.Query) (ent.Value, error) {
+	if q, ok := q.(*ent.GroupQuery); ok {
+		return f(ctx, q)
+	}
+	return nil, fmt.Errorf("unexpected query type %T. expect *ent.GroupQuery", q)
+}
+
+// The TraverseGroup type is an adapter to allow the use of ordinary function as Traverser.
+type TraverseGroup func(context.Context, *ent.GroupQuery) error
+
+// Intercept is a dummy implementation of Intercept that returns the next Querier in the pipeline.
+func (f TraverseGroup) Intercept(next ent.Querier) ent.Querier {
+	return next
+}
+
+// Traverse calls f(ctx, q).
+func (f TraverseGroup) Traverse(ctx context.Context, q ent.Query) error {
+	if q, ok := q.(*ent.GroupQuery); ok {
+		return f(ctx, q)
+	}
+	return fmt.Errorf("unexpected query type %T. expect *ent.GroupQuery", q)
+}
+
+// The ProxyFunc type is an adapter to allow the use of ordinary function as a Querier.
+type ProxyFunc func(context.Context, *ent.ProxyQuery) (ent.Value, error)
+
+// Query calls f(ctx, q).
+func (f ProxyFunc) Query(ctx context.Context, q ent.Query) (ent.Value, error) {
+	if q, ok := q.(*ent.ProxyQuery); ok {
+		return f(ctx, q)
+	}
+	return nil, fmt.Errorf("unexpected query type %T. expect *ent.ProxyQuery", q)
+}
+
+// The TraverseProxy type is an adapter to allow the use of ordinary function as Traverser.
+type TraverseProxy func(context.Context, *ent.ProxyQuery) error
+
+// Intercept is a dummy implementation of Intercept that returns the next Querier in the pipeline.
+func (f TraverseProxy) Intercept(next ent.Querier) ent.Querier {
+	return next
+}
+
+// Traverse calls f(ctx, q).
+func (f TraverseProxy) Traverse(ctx context.Context, q ent.Query) error {
+	if q, ok := q.(*ent.ProxyQuery); ok {
+		return f(ctx, q)
+	}
+	return fmt.Errorf("unexpected query type %T. expect *ent.ProxyQuery", q)
+}
+
+// The RedeemCodeFunc type is an adapter to allow the use of ordinary function as a Querier.
+type RedeemCodeFunc func(context.Context, *ent.RedeemCodeQuery) (ent.Value, error)
+
+// Query calls f(ctx, q).
+func (f RedeemCodeFunc) Query(ctx context.Context, q ent.Query) (ent.Value, error) {
+	if q, ok := q.(*ent.RedeemCodeQuery); ok {
+		return f(ctx, q)
+	}
+	return nil, fmt.Errorf("unexpected query type %T. expect *ent.RedeemCodeQuery", q)
+}
+
+// The TraverseRedeemCode type is an adapter to allow the use of ordinary function as Traverser.
+type TraverseRedeemCode func(context.Context, *ent.RedeemCodeQuery) error
+
+// Intercept is a dummy implementation of Intercept that returns the next Querier in the pipeline.
+func (f TraverseRedeemCode) Intercept(next ent.Querier) ent.Querier {
+	return next
+}
+
+// Traverse calls f(ctx, q).
+func (f TraverseRedeemCode) Traverse(ctx context.Context, q ent.Query) error {
+	if q, ok := q.(*ent.RedeemCodeQuery); ok {
+		return f(ctx, q)
+	}
+	return fmt.Errorf("unexpected query type %T. expect *ent.RedeemCodeQuery", q)
+}
+
+// The SettingFunc type is an adapter to allow the use of ordinary function as a Querier.
+type SettingFunc func(context.Context, *ent.SettingQuery) (ent.Value, error)
+
+// Query calls f(ctx, q).
+func (f SettingFunc) Query(ctx context.Context, q ent.Query) (ent.Value, error) {
+	if q, ok := q.(*ent.SettingQuery); ok {
+		return f(ctx, q)
+	}
+	return nil, fmt.Errorf("unexpected query type %T. expect *ent.SettingQuery", q)
+}
+
+// The TraverseSetting type is an adapter to allow the use of ordinary function as Traverser.
+type TraverseSetting func(context.Context, *ent.SettingQuery) error
+
+// Intercept is a dummy implementation of Intercept that returns the next Querier in the pipeline.
+func (f TraverseSetting) Intercept(next ent.Querier) ent.Querier {
+	return next
+}
+
+// Traverse calls f(ctx, q).
+func (f TraverseSetting) Traverse(ctx context.Context, q ent.Query) error {
+	if q, ok := q.(*ent.SettingQuery); ok {
+		return f(ctx, q)
+	}
+	return fmt.Errorf("unexpected query type %T. expect *ent.SettingQuery", q)
+}
+
+// The UserFunc type is an adapter to allow the use of ordinary function as a Querier.
+type UserFunc func(context.Context, *ent.UserQuery) (ent.Value, error)
+
+// Query calls f(ctx, q).
+func (f UserFunc) Query(ctx context.Context, q ent.Query) (ent.Value, error) {
+	if q, ok := q.(*ent.UserQuery); ok {
+		return f(ctx, q)
+	}
+	return nil, fmt.Errorf("unexpected query type %T. expect *ent.UserQuery", q)
+}
+
+// The TraverseUser type is an adapter to allow the use of ordinary function as Traverser.
+type TraverseUser func(context.Context, *ent.UserQuery) error
+
+// Intercept is a dummy implementation of Intercept that returns the next Querier in the pipeline.
+func (f TraverseUser) Intercept(next ent.Querier) ent.Querier {
+	return next
+}
+
+// Traverse calls f(ctx, q).
+func (f TraverseUser) Traverse(ctx context.Context, q ent.Query) error {
+	if q, ok := q.(*ent.UserQuery); ok {
+		return f(ctx, q)
+	}
+	return fmt.Errorf("unexpected query type %T. expect *ent.UserQuery", q)
+}
+
+// The UserAllowedGroupFunc type is an adapter to allow the use of ordinary function as a Querier.
+type UserAllowedGroupFunc func(context.Context, *ent.UserAllowedGroupQuery) (ent.Value, error)
+
+// Query calls f(ctx, q).
+func (f UserAllowedGroupFunc) Query(ctx context.Context, q ent.Query) (ent.Value, error) {
+	if q, ok := q.(*ent.UserAllowedGroupQuery); ok {
+		return f(ctx, q)
+	}
+	return nil, fmt.Errorf("unexpected query type %T. expect *ent.UserAllowedGroupQuery", q)
+}
+
+// The TraverseUserAllowedGroup type is an adapter to allow the use of ordinary function as Traverser.
+type TraverseUserAllowedGroup func(context.Context, *ent.UserAllowedGroupQuery) error
+
+// Intercept is a dummy implementation of Intercept that returns the next Querier in the pipeline.
+func (f TraverseUserAllowedGroup) Intercept(next ent.Querier) ent.Querier {
+	return next
+}
+
+// Traverse calls f(ctx, q).
+func (f TraverseUserAllowedGroup) Traverse(ctx context.Context, q ent.Query) error {
+	if q, ok := q.(*ent.UserAllowedGroupQuery); ok {
+		return f(ctx, q)
+	}
+	return fmt.Errorf("unexpected query type %T. expect *ent.UserAllowedGroupQuery", q)
+}
+
+// The UserSubscriptionFunc type is an adapter to allow the use of ordinary function as a Querier.
+type UserSubscriptionFunc func(context.Context, *ent.UserSubscriptionQuery) (ent.Value, error)
+
+// Query calls f(ctx, q).
+func (f UserSubscriptionFunc) Query(ctx context.Context, q ent.Query) (ent.Value, error) {
+	if q, ok := q.(*ent.UserSubscriptionQuery); ok {
+		return f(ctx, q)
+	}
+	return nil, fmt.Errorf("unexpected query type %T. expect *ent.UserSubscriptionQuery", q)
+}
+
+// The TraverseUserSubscription type is an adapter to allow the use of ordinary function as Traverser.
+type TraverseUserSubscription func(context.Context, *ent.UserSubscriptionQuery) error
+
+// Intercept is a dummy implementation of Intercept that returns the next Querier in the pipeline.
+func (f TraverseUserSubscription) Intercept(next ent.Querier) ent.Querier {
+	return next
+}
+
+// Traverse calls f(ctx, q).
+func (f TraverseUserSubscription) Traverse(ctx context.Context, q ent.Query) error {
+	if q, ok := q.(*ent.UserSubscriptionQuery); ok {
+		return f(ctx, q)
+	}
+	return fmt.Errorf("unexpected query type %T. expect *ent.UserSubscriptionQuery", q)
+}
+
+// NewQuery returns the generic Query interface for the given typed query.
+func NewQuery(q ent.Query) (Query, error) {
+	switch q := q.(type) {
+	case *ent.AccountQuery:
+		return &query[*ent.AccountQuery, predicate.Account, account.OrderOption]{typ: ent.TypeAccount, tq: q}, nil
+	case *ent.AccountGroupQuery:
+		return &query[*ent.AccountGroupQuery, predicate.AccountGroup, accountgroup.OrderOption]{typ: ent.TypeAccountGroup, tq: q}, nil
+	case *ent.ApiKeyQuery:
+		return &query[*ent.ApiKeyQuery, predicate.ApiKey, apikey.OrderOption]{typ: ent.TypeApiKey, tq: q}, nil
+	case *ent.GroupQuery:
+		return &query[*ent.GroupQuery, predicate.Group, group.OrderOption]{typ: ent.TypeGroup, tq: q}, nil
+	case *ent.ProxyQuery:
+		return &query[*ent.ProxyQuery, predicate.Proxy, proxy.OrderOption]{typ: ent.TypeProxy, tq: q}, nil
+	case *ent.RedeemCodeQuery:
+		return &query[*ent.RedeemCodeQuery, predicate.RedeemCode, redeemcode.OrderOption]{typ: ent.TypeRedeemCode, tq: q}, nil
+	case *ent.SettingQuery:
+		return &query[*ent.SettingQuery, predicate.Setting, setting.OrderOption]{typ: ent.TypeSetting, tq: q}, nil
+	case *ent.UserQuery:
+		return &query[*ent.UserQuery, predicate.User, user.OrderOption]{typ: ent.TypeUser, tq: q}, nil
+	case *ent.UserAllowedGroupQuery:
+		return &query[*ent.UserAllowedGroupQuery, predicate.UserAllowedGroup, userallowedgroup.OrderOption]{typ: ent.TypeUserAllowedGroup, tq: q}, nil
+	case *ent.UserSubscriptionQuery:
+		return &query[*ent.UserSubscriptionQuery, predicate.UserSubscription, usersubscription.OrderOption]{typ: ent.TypeUserSubscription, tq: q}, nil
+	default:
+		return nil, fmt.Errorf("unknown query type %T", q)
+	}
+}
+
+type query[T any, P ~func(*sql.Selector), R ~func(*sql.Selector)] struct {
+	typ string
+	tq  interface {
+		Limit(int) T
+		Offset(int) T
+		Unique(bool) T
+		Order(...R) T
+		Where(...P) T
+	}
+}
+
+func (q query[T, P, R]) Type() string {
+	return q.typ
+}
+
+func (q query[T, P, R]) Limit(limit int) {
+	q.tq.Limit(limit)
+}
+
+func (q query[T, P, R]) Offset(offset int) {
+	q.tq.Offset(offset)
+}
+
+func (q query[T, P, R]) Unique(unique bool) {
+	q.tq.Unique(unique)
+}
+
+func (q query[T, P, R]) Order(orders ...func(*sql.Selector)) {
+	rs := make([]R, len(orders))
+	for i := range orders {
+		rs[i] = orders[i]
+	}
+	q.tq.Order(rs...)
+}
+
+func (q query[T, P, R]) WhereP(ps ...func(*sql.Selector)) {
+	p := make([]P, len(ps))
+	for i := range ps {
+		p[i] = ps[i]
+	}
+	q.tq.Where(p...)
+}

backend/ent/migrate/migrate.go

+// Code generated by ent, DO NOT EDIT.
+
+package migrate
+
+import (
+	"context"
+	"fmt"
+	"io"
+
+	"entgo.io/ent/dialect"
+	"entgo.io/ent/dialect/sql/schema"
+)
+
+var (
+	// WithGlobalUniqueID sets the universal ids options to the migration.
+	// If this option is enabled, ent migration will allocate a 1<<32 range
+	// for the ids of each entity (table).
+	// Note that this option cannot be applied on tables that already exist.
+	WithGlobalUniqueID = schema.WithGlobalUniqueID
+	// WithDropColumn sets the drop column option to the migration.
+	// If this option is enabled, ent migration will drop old columns
+	// that were used for both fields and edges. This defaults to false.
+	WithDropColumn = schema.WithDropColumn
+	// WithDropIndex sets the drop index option to the migration.
+	// If this option is enabled, ent migration will drop old indexes
+	// that were defined in the schema. This defaults to false.
+	// Note that unique constraints are defined using `UNIQUE INDEX`,
+	// and therefore, it's recommended to enable this option to get more
+	// flexibility in the schema changes.
+	WithDropIndex = schema.WithDropIndex
+	// WithForeignKeys enables creating foreign-key in schema DDL. This defaults to true.
+	WithForeignKeys = schema.WithForeignKeys
+)
+
+// Schema is the API for creating, migrating and dropping a schema.
+type Schema struct {
+	drv dialect.Driver
+}
+
+// NewSchema creates a new schema client.
+func NewSchema(drv dialect.Driver) *Schema { return &Schema{drv: drv} }
+
+// Create creates all schema resources.
+func (s *Schema) Create(ctx context.Context, opts ...schema.MigrateOption) error {
+	return Create(ctx, s, Tables, opts...)
+}
+
+// Create creates all table resources using the given schema driver.
+func Create(ctx context.Context, s *Schema, tables []*schema.Table, opts ...schema.MigrateOption) error {
+	migrate, err := schema.NewMigrate(s.drv, opts...)
+	if err != nil {
+		return fmt.Errorf("ent/migrate: %w", err)
+	}
+	return migrate.Create(ctx, tables...)
+}
+
+// WriteTo writes the schema changes to w instead of running them against the database.
+//
+//	if err := client.Schema.WriteTo(context.Background(), os.Stdout); err != nil {
+//		log.Fatal(err)
+//	}
+func (s *Schema) WriteTo(ctx context.Context, w io.Writer, opts ...schema.MigrateOption) error {
+	return Create(ctx, &Schema{drv: &schema.WriteDriver{Writer: w, Driver: s.drv}}, Tables, opts...)
+}

backend/ent/migrate/schema.go

+// Code generated by ent, DO NOT EDIT.
+
+package migrate
+
+import (
+	"entgo.io/ent/dialect/entsql"
+	"entgo.io/ent/dialect/sql/schema"
+	"entgo.io/ent/schema/field"
+)
+
+var (
+	// AccountsColumns holds the columns for the "accounts" table.
+	AccountsColumns = []*schema.Column{
+		{Name: "id", Type: field.TypeInt64, Increment: true},
+		{Name: "created_at", Type: field.TypeTime, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "updated_at", Type: field.TypeTime, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "deleted_at", Type: field.TypeTime, Nullable: true, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "name", Type: field.TypeString, Size: 100},
+		{Name: "platform", Type: field.TypeString, Size: 50},
+		{Name: "type", Type: field.TypeString, Size: 20},
+		{Name: "credentials", Type: field.TypeJSON, SchemaType: map[string]string{"postgres": "jsonb"}},
+		{Name: "extra", Type: field.TypeJSON, SchemaType: map[string]string{"postgres": "jsonb"}},
+		{Name: "proxy_id", Type: field.TypeInt64, Nullable: true},
+		{Name: "concurrency", Type: field.TypeInt, Default: 3},
+		{Name: "priority", Type: field.TypeInt, Default: 50},
+		{Name: "status", Type: field.TypeString, Size: 20, Default: "active"},
+		{Name: "error_message", Type: field.TypeString, Nullable: true, SchemaType: map[string]string{"postgres": "text"}},
+		{Name: "last_used_at", Type: field.TypeTime, Nullable: true, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "schedulable", Type: field.TypeBool, Default: true},
+		{Name: "rate_limited_at", Type: field.TypeTime, Nullable: true, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "rate_limit_reset_at", Type: field.TypeTime, Nullable: true, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "overload_until", Type: field.TypeTime, Nullable: true, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "session_window_start", Type: field.TypeTime, Nullable: true, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "session_window_end", Type: field.TypeTime, Nullable: true, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "session_window_status", Type: field.TypeString, Nullable: true, Size: 20},
+	}
+	// AccountsTable holds the schema information for the "accounts" table.
+	AccountsTable = &schema.Table{
+		Name:       "accounts",
+		Columns:    AccountsColumns,
+		PrimaryKey: []*schema.Column{AccountsColumns[0]},
+		Indexes: []*schema.Index{
+			{
+				Name:    "account_platform",
+				Unique:  false,
+				Columns: []*schema.Column{AccountsColumns[5]},
+			},
+			{
+				Name:    "account_type",
+				Unique:  false,
+				Columns: []*schema.Column{AccountsColumns[6]},
+			},
+			{
+				Name:    "account_status",
+				Unique:  false,
+				Columns: []*schema.Column{AccountsColumns[12]},
+			},
+			{
+				Name:    "account_proxy_id",
+				Unique:  false,
+				Columns: []*schema.Column{AccountsColumns[9]},
+			},
+			{
+				Name:    "account_priority",
+				Unique:  false,
+				Columns: []*schema.Column{AccountsColumns[11]},
+			},
+			{
+				Name:    "account_last_used_at",
+				Unique:  false,
+				Columns: []*schema.Column{AccountsColumns[14]},
+			},
+			{
+				Name:    "account_schedulable",
+				Unique:  false,
+				Columns: []*schema.Column{AccountsColumns[15]},
+			},
+			{
+				Name:    "account_rate_limited_at",
+				Unique:  false,
+				Columns: []*schema.Column{AccountsColumns[16]},
+			},
+			{
+				Name:    "account_rate_limit_reset_at",
+				Unique:  false,
+				Columns: []*schema.Column{AccountsColumns[17]},
+			},
+			{
+				Name:    "account_overload_until",
+				Unique:  false,
+				Columns: []*schema.Column{AccountsColumns[18]},
+			},
+			{
+				Name:    "account_deleted_at",
+				Unique:  false,
+				Columns: []*schema.Column{AccountsColumns[3]},
+			},
+		},
+	}
+	// AccountGroupsColumns holds the columns for the "account_groups" table.
+	AccountGroupsColumns = []*schema.Column{
+		{Name: "priority", Type: field.TypeInt, Default: 50},
+		{Name: "created_at", Type: field.TypeTime},
+		{Name: "account_id", Type: field.TypeInt64},
+		{Name: "group_id", Type: field.TypeInt64},
+	}
+	// AccountGroupsTable holds the schema information for the "account_groups" table.
+	AccountGroupsTable = &schema.Table{
+		Name:       "account_groups",
+		Columns:    AccountGroupsColumns,
+		PrimaryKey: []*schema.Column{AccountGroupsColumns[2], AccountGroupsColumns[3]},
+		ForeignKeys: []*schema.ForeignKey{
+			{
+				Symbol:     "account_groups_accounts_account",
+				Columns:    []*schema.Column{AccountGroupsColumns[2]},
+				RefColumns: []*schema.Column{AccountsColumns[0]},
+				OnDelete:   schema.NoAction,
+			},
+			{
+				Symbol:     "account_groups_groups_group",
+				Columns:    []*schema.Column{AccountGroupsColumns[3]},
+				RefColumns: []*schema.Column{GroupsColumns[0]},
+				OnDelete:   schema.NoAction,
+			},
+		},
+		Indexes: []*schema.Index{
+			{
+				Name:    "accountgroup_group_id",
+				Unique:  false,
+				Columns: []*schema.Column{AccountGroupsColumns[3]},
+			},
+			{
+				Name:    "accountgroup_priority",
+				Unique:  false,
+				Columns: []*schema.Column{AccountGroupsColumns[0]},
+			},
+		},
+	}
+	// APIKeysColumns holds the columns for the "api_keys" table.
+	APIKeysColumns = []*schema.Column{
+		{Name: "id", Type: field.TypeInt64, Increment: true},
+		{Name: "created_at", Type: field.TypeTime, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "updated_at", Type: field.TypeTime, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "deleted_at", Type: field.TypeTime, Nullable: true, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "key", Type: field.TypeString, Unique: true, Size: 128},
+		{Name: "name", Type: field.TypeString, Size: 100},
+		{Name: "status", Type: field.TypeString, Size: 20, Default: "active"},
+		{Name: "group_id", Type: field.TypeInt64, Nullable: true},
+		{Name: "user_id", Type: field.TypeInt64},
+	}
+	// APIKeysTable holds the schema information for the "api_keys" table.
+	APIKeysTable = &schema.Table{
+		Name:       "api_keys",
+		Columns:    APIKeysColumns,
+		PrimaryKey: []*schema.Column{APIKeysColumns[0]},
+		ForeignKeys: []*schema.ForeignKey{
+			{
+				Symbol:     "api_keys_groups_api_keys",
+				Columns:    []*schema.Column{APIKeysColumns[7]},
+				RefColumns: []*schema.Column{GroupsColumns[0]},
+				OnDelete:   schema.SetNull,
+			},
+			{
+				Symbol:     "api_keys_users_api_keys",
+				Columns:    []*schema.Column{APIKeysColumns[8]},
+				RefColumns: []*schema.Column{UsersColumns[0]},
+				OnDelete:   schema.NoAction,
+			},
+		},
+		Indexes: []*schema.Index{
+			{
+				Name:    "apikey_key",
+				Unique:  true,
+				Columns: []*schema.Column{APIKeysColumns[4]},
+			},
+			{
+				Name:    "apikey_user_id",
+				Unique:  false,
+				Columns: []*schema.Column{APIKeysColumns[8]},
+			},
+			{
+				Name:    "apikey_group_id",
+				Unique:  false,
+				Columns: []*schema.Column{APIKeysColumns[7]},
+			},
+			{
+				Name:    "apikey_status",
+				Unique:  false,
+				Columns: []*schema.Column{APIKeysColumns[6]},
+			},
+			{
+				Name:    "apikey_deleted_at",
+				Unique:  false,
+				Columns: []*schema.Column{APIKeysColumns[3]},
+			},
+		},
+	}
+	// GroupsColumns holds the columns for the "groups" table.
+	GroupsColumns = []*schema.Column{
+		{Name: "id", Type: field.TypeInt64, Increment: true},
+		{Name: "created_at", Type: field.TypeTime, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "updated_at", Type: field.TypeTime, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "deleted_at", Type: field.TypeTime, Nullable: true, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "name", Type: field.TypeString, Unique: true, Size: 100},
+		{Name: "description", Type: field.TypeString, Nullable: true, SchemaType: map[string]string{"postgres": "text"}},
+		{Name: "rate_multiplier", Type: field.TypeFloat64, Default: 1, SchemaType: map[string]string{"postgres": "decimal(10,4)"}},
+		{Name: "is_exclusive", Type: field.TypeBool, Default: false},
+		{Name: "status", Type: field.TypeString, Size: 20, Default: "active"},
+		{Name: "platform", Type: field.TypeString, Size: 50, Default: "anthropic"},
+		{Name: "subscription_type", Type: field.TypeString, Size: 20, Default: "standard"},
+		{Name: "daily_limit_usd", Type: field.TypeFloat64, Nullable: true, SchemaType: map[string]string{"postgres": "decimal(20,8)"}},
+		{Name: "weekly_limit_usd", Type: field.TypeFloat64, Nullable: true, SchemaType: map[string]string{"postgres": "decimal(20,8)"}},
+		{Name: "monthly_limit_usd", Type: field.TypeFloat64, Nullable: true, SchemaType: map[string]string{"postgres": "decimal(20,8)"}},
+	}
+	// GroupsTable holds the schema information for the "groups" table.
+	GroupsTable = &schema.Table{
+		Name:       "groups",
+		Columns:    GroupsColumns,
+		PrimaryKey: []*schema.Column{GroupsColumns[0]},
+		Indexes: []*schema.Index{
+			{
+				Name:    "group_name",
+				Unique:  true,
+				Columns: []*schema.Column{GroupsColumns[4]},
+			},
+			{
+				Name:    "group_status",
+				Unique:  false,
+				Columns: []*schema.Column{GroupsColumns[8]},
+			},
+			{
+				Name:    "group_platform",
+				Unique:  false,
+				Columns: []*schema.Column{GroupsColumns[9]},
+			},
+			{
+				Name:    "group_subscription_type",
+				Unique:  false,
+				Columns: []*schema.Column{GroupsColumns[10]},
+			},
+			{
+				Name:    "group_is_exclusive",
+				Unique:  false,
+				Columns: []*schema.Column{GroupsColumns[7]},
+			},
+			{
+				Name:    "group_deleted_at",
+				Unique:  false,
+				Columns: []*schema.Column{GroupsColumns[3]},
+			},
+		},
+	}
+	// ProxiesColumns holds the columns for the "proxies" table.
+	ProxiesColumns = []*schema.Column{
+		{Name: "id", Type: field.TypeInt64, Increment: true},
+		{Name: "created_at", Type: field.TypeTime, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "updated_at", Type: field.TypeTime, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "deleted_at", Type: field.TypeTime, Nullable: true, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "name", Type: field.TypeString, Size: 100},
+		{Name: "protocol", Type: field.TypeString, Size: 20},
+		{Name: "host", Type: field.TypeString, Size: 255},
+		{Name: "port", Type: field.TypeInt},
+		{Name: "username", Type: field.TypeString, Nullable: true, Size: 100},
+		{Name: "password", Type: field.TypeString, Nullable: true, Size: 100},
+		{Name: "status", Type: field.TypeString, Size: 20, Default: "active"},
+	}
+	// ProxiesTable holds the schema information for the "proxies" table.
+	ProxiesTable = &schema.Table{
+		Name:       "proxies",
+		Columns:    ProxiesColumns,
+		PrimaryKey: []*schema.Column{ProxiesColumns[0]},
+		Indexes: []*schema.Index{
+			{
+				Name:    "proxy_status",
+				Unique:  false,
+				Columns: []*schema.Column{ProxiesColumns[10]},
+			},
+			{
+				Name:    "proxy_deleted_at",
+				Unique:  false,
+				Columns: []*schema.Column{ProxiesColumns[3]},
+			},
+		},
+	}
+	// RedeemCodesColumns holds the columns for the "redeem_codes" table.
+	RedeemCodesColumns = []*schema.Column{
+		{Name: "id", Type: field.TypeInt64, Increment: true},
+		{Name: "code", Type: field.TypeString, Unique: true, Size: 32},
+		{Name: "type", Type: field.TypeString, Size: 20, Default: "balance"},
+		{Name: "value", Type: field.TypeFloat64, Default: 0, SchemaType: map[string]string{"postgres": "decimal(20,8)"}},
+		{Name: "status", Type: field.TypeString, Size: 20, Default: "unused"},
+		{Name: "used_at", Type: field.TypeTime, Nullable: true, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "notes", Type: field.TypeString, Nullable: true, SchemaType: map[string]string{"postgres": "text"}},
+		{Name: "created_at", Type: field.TypeTime, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "validity_days", Type: field.TypeInt, Default: 30},
+		{Name: "group_id", Type: field.TypeInt64, Nullable: true},
+		{Name: "used_by", Type: field.TypeInt64, Nullable: true},
+	}
+	// RedeemCodesTable holds the schema information for the "redeem_codes" table.
+	RedeemCodesTable = &schema.Table{
+		Name:       "redeem_codes",
+		Columns:    RedeemCodesColumns,
+		PrimaryKey: []*schema.Column{RedeemCodesColumns[0]},
+		ForeignKeys: []*schema.ForeignKey{
+			{
+				Symbol:     "redeem_codes_groups_redeem_codes",
+				Columns:    []*schema.Column{RedeemCodesColumns[9]},
+				RefColumns: []*schema.Column{GroupsColumns[0]},
+				OnDelete:   schema.SetNull,
+			},
+			{
+				Symbol:     "redeem_codes_users_redeem_codes",
+				Columns:    []*schema.Column{RedeemCodesColumns[10]},
+				RefColumns: []*schema.Column{UsersColumns[0]},
+				OnDelete:   schema.SetNull,
+			},
+		},
+		Indexes: []*schema.Index{
+			{
+				Name:    "redeemcode_code",
+				Unique:  true,
+				Columns: []*schema.Column{RedeemCodesColumns[1]},
+			},
+			{
+				Name:    "redeemcode_status",
+				Unique:  false,
+				Columns: []*schema.Column{RedeemCodesColumns[4]},
+			},
+			{
+				Name:    "redeemcode_used_by",
+				Unique:  false,
+				Columns: []*schema.Column{RedeemCodesColumns[10]},
+			},
+			{
+				Name:    "redeemcode_group_id",
+				Unique:  false,
+				Columns: []*schema.Column{RedeemCodesColumns[9]},
+			},
+		},
+	}
+	// SettingsColumns holds the columns for the "settings" table.
+	SettingsColumns = []*schema.Column{
+		{Name: "id", Type: field.TypeInt64, Increment: true},
+		{Name: "key", Type: field.TypeString, Unique: true, Size: 100},
+		{Name: "value", Type: field.TypeString, SchemaType: map[string]string{"postgres": "text"}},
+		{Name: "updated_at", Type: field.TypeTime, SchemaType: map[string]string{"postgres": "timestamptz"}},
+	}
+	// SettingsTable holds the schema information for the "settings" table.
+	SettingsTable = &schema.Table{
+		Name:       "settings",
+		Columns:    SettingsColumns,
+		PrimaryKey: []*schema.Column{SettingsColumns[0]},
+		Indexes: []*schema.Index{
+			{
+				Name:    "setting_key",
+				Unique:  true,
+				Columns: []*schema.Column{SettingsColumns[1]},
+			},
+		},
+	}
+	// UsersColumns holds the columns for the "users" table.
+	UsersColumns = []*schema.Column{
+		{Name: "id", Type: field.TypeInt64, Increment: true},
+		{Name: "created_at", Type: field.TypeTime, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "updated_at", Type: field.TypeTime, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "deleted_at", Type: field.TypeTime, Nullable: true, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "email", Type: field.TypeString, Unique: true, Size: 255},
+		{Name: "password_hash", Type: field.TypeString, Size: 255},
+		{Name: "role", Type: field.TypeString, Size: 20, Default: "user"},
+		{Name: "balance", Type: field.TypeFloat64, Default: 0, SchemaType: map[string]string{"postgres": "decimal(20,8)"}},
+		{Name: "concurrency", Type: field.TypeInt, Default: 5},
+		{Name: "status", Type: field.TypeString, Size: 20, Default: "active"},
+		{Name: "username", Type: field.TypeString, Size: 100, Default: ""},
+		{Name: "wechat", Type: field.TypeString, Size: 100, Default: ""},
+		{Name: "notes", Type: field.TypeString, Default: "", SchemaType: map[string]string{"postgres": "text"}},
+	}
+	// UsersTable holds the schema information for the "users" table.
+	UsersTable = &schema.Table{
+		Name:       "users",
+		Columns:    UsersColumns,
+		PrimaryKey: []*schema.Column{UsersColumns[0]},
+		Indexes: []*schema.Index{
+			{
+				Name:    "user_email",
+				Unique:  true,
+				Columns: []*schema.Column{UsersColumns[4]},
+			},
+			{
+				Name:    "user_status",
+				Unique:  false,
+				Columns: []*schema.Column{UsersColumns[9]},
+			},
+			{
+				Name:    "user_deleted_at",
+				Unique:  false,
+				Columns: []*schema.Column{UsersColumns[3]},
+			},
+		},
+	}
+	// UserAllowedGroupsColumns holds the columns for the "user_allowed_groups" table.
+	UserAllowedGroupsColumns = []*schema.Column{
+		{Name: "created_at", Type: field.TypeTime},
+		{Name: "user_id", Type: field.TypeInt64},
+		{Name: "group_id", Type: field.TypeInt64},
+	}
+	// UserAllowedGroupsTable holds the schema information for the "user_allowed_groups" table.
+	UserAllowedGroupsTable = &schema.Table{
+		Name:       "user_allowed_groups",
+		Columns:    UserAllowedGroupsColumns,
+		PrimaryKey: []*schema.Column{UserAllowedGroupsColumns[1], UserAllowedGroupsColumns[2]},
+		ForeignKeys: []*schema.ForeignKey{
+			{
+				Symbol:     "user_allowed_groups_users_user",
+				Columns:    []*schema.Column{UserAllowedGroupsColumns[1]},
+				RefColumns: []*schema.Column{UsersColumns[0]},
+				OnDelete:   schema.NoAction,
+			},
+			{
+				Symbol:     "user_allowed_groups_groups_group",
+				Columns:    []*schema.Column{UserAllowedGroupsColumns[2]},
+				RefColumns: []*schema.Column{GroupsColumns[0]},
+				OnDelete:   schema.NoAction,
+			},
+		},
+		Indexes: []*schema.Index{
+			{
+				Name:    "userallowedgroup_group_id",
+				Unique:  false,
+				Columns: []*schema.Column{UserAllowedGroupsColumns[2]},
+			},
+		},
+	}
+	// UserSubscriptionsColumns holds the columns for the "user_subscriptions" table.
+	UserSubscriptionsColumns = []*schema.Column{
+		{Name: "id", Type: field.TypeInt64, Increment: true},
+		{Name: "created_at", Type: field.TypeTime, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "updated_at", Type: field.TypeTime, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "starts_at", Type: field.TypeTime, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "expires_at", Type: field.TypeTime, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "status", Type: field.TypeString, Size: 20, Default: "active"},
+		{Name: "daily_window_start", Type: field.TypeTime, Nullable: true, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "weekly_window_start", Type: field.TypeTime, Nullable: true, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "monthly_window_start", Type: field.TypeTime, Nullable: true, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "daily_usage_usd", Type: field.TypeFloat64, Default: 0, SchemaType: map[string]string{"postgres": "decimal(20,10)"}},
+		{Name: "weekly_usage_usd", Type: field.TypeFloat64, Default: 0, SchemaType: map[string]string{"postgres": "decimal(20,10)"}},
+		{Name: "monthly_usage_usd", Type: field.TypeFloat64, Default: 0, SchemaType: map[string]string{"postgres": "decimal(20,10)"}},
+		{Name: "assigned_at", Type: field.TypeTime, SchemaType: map[string]string{"postgres": "timestamptz"}},
+		{Name: "notes", Type: field.TypeString, Nullable: true, SchemaType: map[string]string{"postgres": "text"}},
+		{Name: "group_id", Type: field.TypeInt64},
+		{Name: "user_id", Type: field.TypeInt64},
+		{Name: "assigned_by", Type: field.TypeInt64, Nullable: true},
+	}
+	// UserSubscriptionsTable holds the schema information for the "user_subscriptions" table.
+	UserSubscriptionsTable = &schema.Table{
+		Name:       "user_subscriptions",
+		Columns:    UserSubscriptionsColumns,
+		PrimaryKey: []*schema.Column{UserSubscriptionsColumns[0]},
+		ForeignKeys: []*schema.ForeignKey{
+			{
+				Symbol:     "user_subscriptions_groups_subscriptions",
+				Columns:    []*schema.Column{UserSubscriptionsColumns[14]},
+				RefColumns: []*schema.Column{GroupsColumns[0]},
+				OnDelete:   schema.NoAction,
+			},
+			{
+				Symbol:     "user_subscriptions_users_subscriptions",
+				Columns:    []*schema.Column{UserSubscriptionsColumns[15]},
+				RefColumns: []*schema.Column{UsersColumns[0]},
+				OnDelete:   schema.NoAction,
+			},
+			{
+				Symbol:     "user_subscriptions_users_assigned_subscriptions",
+				Columns:    []*schema.Column{UserSubscriptionsColumns[16]},
+				RefColumns: []*schema.Column{UsersColumns[0]},
+				OnDelete:   schema.SetNull,
+			},
+		},
+		Indexes: []*schema.Index{
+			{
+				Name:    "usersubscription_user_id",
+				Unique:  false,
+				Columns: []*schema.Column{UserSubscriptionsColumns[15]},
+			},
+			{
+				Name:    "usersubscription_group_id",
+				Unique:  false,
+				Columns: []*schema.Column{UserSubscriptionsColumns[14]},
+			},
+			{
+				Name:    "usersubscription_status",
+				Unique:  false,
+				Columns: []*schema.Column{UserSubscriptionsColumns[5]},
+			},
+			{
+				Name:    "usersubscription_expires_at",
+				Unique:  false,
+				Columns: []*schema.Column{UserSubscriptionsColumns[4]},
+			},
+			{
+				Name:    "usersubscription_assigned_by",
+				Unique:  false,
+				Columns: []*schema.Column{UserSubscriptionsColumns[16]},
+			},
+			{
+				Name:    "usersubscription_user_id_group_id",
+				Unique:  true,
+				Columns: []*schema.Column{UserSubscriptionsColumns[15], UserSubscriptionsColumns[14]},
+			},
+		},
+	}
+	// Tables holds all the tables in the schema.
+	Tables = []*schema.Table{
+		AccountsTable,
+		AccountGroupsTable,
+		APIKeysTable,
+		GroupsTable,
+		ProxiesTable,
+		RedeemCodesTable,
+		SettingsTable,
+		UsersTable,
+		UserAllowedGroupsTable,
+		UserSubscriptionsTable,
+	}
+)
+
+func init() {
+	AccountsTable.Annotation = &entsql.Annotation{
+		Table: "accounts",
+	}
+	AccountGroupsTable.ForeignKeys[0].RefTable = AccountsTable
+	AccountGroupsTable.ForeignKeys[1].RefTable = GroupsTable
+	AccountGroupsTable.Annotation = &entsql.Annotation{
+		Table: "account_groups",
+	}
+	APIKeysTable.ForeignKeys[0].RefTable = GroupsTable
+	APIKeysTable.ForeignKeys[1].RefTable = UsersTable
+	APIKeysTable.Annotation = &entsql.Annotation{
+		Table: "api_keys",
+	}
+	GroupsTable.Annotation = &entsql.Annotation{
+		Table: "groups",
+	}
+	ProxiesTable.Annotation = &entsql.Annotation{
+		Table: "proxies",
+	}
+	RedeemCodesTable.ForeignKeys[0].RefTable = GroupsTable
+	RedeemCodesTable.ForeignKeys[1].RefTable = UsersTable
+	RedeemCodesTable.Annotation = &entsql.Annotation{
+		Table: "redeem_codes",
+	}
+	SettingsTable.Annotation = &entsql.Annotation{
+		Table: "settings",
+	}
+	UsersTable.Annotation = &entsql.Annotation{
+		Table: "users",
+	}
+	UserAllowedGroupsTable.ForeignKeys[0].RefTable = UsersTable
+	UserAllowedGroupsTable.ForeignKeys[1].RefTable = GroupsTable
+	UserAllowedGroupsTable.Annotation = &entsql.Annotation{
+		Table: "user_allowed_groups",
+	}
+	UserSubscriptionsTable.ForeignKeys[0].RefTable = GroupsTable
+	UserSubscriptionsTable.ForeignKeys[1].RefTable = UsersTable
+	UserSubscriptionsTable.ForeignKeys[2].RefTable = UsersTable
+	UserSubscriptionsTable.Annotation = &entsql.Annotation{
+		Table: "user_subscriptions",
+	}
+}

backend/ent/predicate/predicate.go

+// Code generated by ent, DO NOT EDIT.
+
+package predicate
+
+import (
+	"entgo.io/ent/dialect/sql"
+)
+
+// Account is the predicate function for account builders.
+type Account func(*sql.Selector)
+
+// AccountGroup is the predicate function for accountgroup builders.
+type AccountGroup func(*sql.Selector)
+
+// ApiKey is the predicate function for apikey builders.
+type ApiKey func(*sql.Selector)
+
+// Group is the predicate function for group builders.
+type Group func(*sql.Selector)
+
+// Proxy is the predicate function for proxy builders.
+type Proxy func(*sql.Selector)
+
+// RedeemCode is the predicate function for redeemcode builders.
+type RedeemCode func(*sql.Selector)
+
+// Setting is the predicate function for setting builders.
+type Setting func(*sql.Selector)
+
+// User is the predicate function for user builders.
+type User func(*sql.Selector)
+
+// UserAllowedGroup is the predicate function for userallowedgroup builders.
+type UserAllowedGroup func(*sql.Selector)
+
+// UserSubscription is the predicate function for usersubscription builders.
+type UserSubscription func(*sql.Selector)

backend/ent/proxy.go

+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"github.com/Wei-Shaw/sub2api/ent/proxy"
+)
+
+// Proxy is the model entity for the Proxy schema.
+type Proxy struct {
+	config `json:"-"`
+	// ID of the ent.
+	ID int64 `json:"id,omitempty"`
+	// CreatedAt holds the value of the "created_at" field.
+	CreatedAt time.Time `json:"created_at,omitempty"`
+	// UpdatedAt holds the value of the "updated_at" field.
+	UpdatedAt time.Time `json:"updated_at,omitempty"`
+	// DeletedAt holds the value of the "deleted_at" field.
+	DeletedAt *time.Time `json:"deleted_at,omitempty"`
+	// Name holds the value of the "name" field.
+	Name string `json:"name,omitempty"`
+	// Protocol holds the value of the "protocol" field.
+	Protocol string `json:"protocol,omitempty"`
+	// Host holds the value of the "host" field.
+	Host string `json:"host,omitempty"`
+	// Port holds the value of the "port" field.
+	Port int `json:"port,omitempty"`
+	// Username holds the value of the "username" field.
+	Username *string `json:"username,omitempty"`
+	// Password holds the value of the "password" field.
+	Password *string `json:"password,omitempty"`
+	// Status holds the value of the "status" field.
+	Status       string `json:"status,omitempty"`
+	selectValues sql.SelectValues
+}
+
+// scanValues returns the types for scanning values from sql.Rows.
+func (*Proxy) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
+	for i := range columns {
+		switch columns[i] {
+		case proxy.FieldID, proxy.FieldPort:
+			values[i] = new(sql.NullInt64)
+		case proxy.FieldName, proxy.FieldProtocol, proxy.FieldHost, proxy.FieldUsername, proxy.FieldPassword, proxy.FieldStatus:
+			values[i] = new(sql.NullString)
+		case proxy.FieldCreatedAt, proxy.FieldUpdatedAt, proxy.FieldDeletedAt:
+			values[i] = new(sql.NullTime)
+		default:
+			values[i] = new(sql.UnknownType)
+		}
+	}
+	return values, nil
+}
+
+// assignValues assigns the values that were returned from sql.Rows (after scanning)
+// to the Proxy fields.
+func (_m *Proxy) assignValues(columns []string, values []any) error {
+	if m, n := len(values), len(columns); m < n {
+		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
+	}
+	for i := range columns {
+		switch columns[i] {
+		case proxy.FieldID:
+			value, ok := values[i].(*sql.NullInt64)
+			if !ok {
+				return fmt.Errorf("unexpected type %T for field id", value)
+			}
+			_m.ID = int64(value.Int64)
+		case proxy.FieldCreatedAt:
+			if value, ok := values[i].(*sql.NullTime); !ok {
+				return fmt.Errorf("unexpected type %T for field created_at", values[i])
+			} else if value.Valid {
+				_m.CreatedAt = value.Time
+			}
+		case proxy.FieldUpdatedAt:
+			if value, ok := values[i].(*sql.NullTime); !ok {
+				return fmt.Errorf("unexpected type %T for field updated_at", values[i])
+			} else if value.Valid {
+				_m.UpdatedAt = value.Time
+			}
+		case proxy.FieldDeletedAt:
+			if value, ok := values[i].(*sql.NullTime); !ok {
+				return fmt.Errorf("unexpected type %T for field deleted_at", values[i])
+			} else if value.Valid {
+				_m.DeletedAt = new(time.Time)
+				*_m.DeletedAt = value.Time
+			}
+		case proxy.FieldName:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field name", values[i])
+			} else if value.Valid {
+				_m.Name = value.String
+			}
+		case proxy.FieldProtocol:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field protocol", values[i])
+			} else if value.Valid {
+				_m.Protocol = value.String
+			}
+		case proxy.FieldHost:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field host", values[i])
+			} else if value.Valid {
+				_m.Host = value.String
+			}
+		case proxy.FieldPort:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field port", values[i])
+			} else if value.Valid {
+				_m.Port = int(value.Int64)
+			}
+		case proxy.FieldUsername:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field username", values[i])
+			} else if value.Valid {
+				_m.Username = new(string)
+				*_m.Username = value.String
+			}
+		case proxy.FieldPassword:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field password", values[i])
+			} else if value.Valid {
+				_m.Password = new(string)
+				*_m.Password = value.String
+			}
+		case proxy.FieldStatus:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field status", values[i])
+			} else if value.Valid {
+				_m.Status = value.String
+			}
+		default:
+			_m.selectValues.Set(columns[i], values[i])
+		}
+	}
+	return nil
+}
+
+// Value returns the ent.Value that was dynamically selected and assigned to the Proxy.
+// This includes values selected through modifiers, order, etc.
+func (_m *Proxy) Value(name string) (ent.Value, error) {
+	return _m.selectValues.Get(name)
+}
+
+// Update returns a builder for updating this Proxy.
+// Note that you need to call Proxy.Unwrap() before calling this method if this Proxy
+// was returned from a transaction, and the transaction was committed or rolled back.
+func (_m *Proxy) Update() *ProxyUpdateOne {
+	return NewProxyClient(_m.config).UpdateOne(_m)
+}
+
+// Unwrap unwraps the Proxy entity that was returned from a transaction after it was closed,
+// so that all future queries will be executed through the driver which created the transaction.
+func (_m *Proxy) Unwrap() *Proxy {
+	_tx, ok := _m.config.driver.(*txDriver)
+	if !ok {
+		panic("ent: Proxy is not a transactional entity")
+	}
+	_m.config.driver = _tx.drv
+	return _m
+}
+
+// String implements the fmt.Stringer.
+func (_m *Proxy) String() string {
+	var builder strings.Builder
+	builder.WriteString("Proxy(")
+	builder.WriteString(fmt.Sprintf("id=%v, ", _m.ID))
+	builder.WriteString("created_at=")
+	builder.WriteString(_m.CreatedAt.Format(time.ANSIC))
+	builder.WriteString(", ")
+	builder.WriteString("updated_at=")
+	builder.WriteString(_m.UpdatedAt.Format(time.ANSIC))
+	builder.WriteString(", ")
+	if v := _m.DeletedAt; v != nil {
+		builder.WriteString("deleted_at=")
+		builder.WriteString(v.Format(time.ANSIC))
+	}
+	builder.WriteString(", ")
+	builder.WriteString("name=")
+	builder.WriteString(_m.Name)
+	builder.WriteString(", ")
+	builder.WriteString("protocol=")
+	builder.WriteString(_m.Protocol)
+	builder.WriteString(", ")
+	builder.WriteString("host=")
+	builder.WriteString(_m.Host)
+	builder.WriteString(", ")
+	builder.WriteString("port=")
+	builder.WriteString(fmt.Sprintf("%v", _m.Port))
+	builder.WriteString(", ")
+	if v := _m.Username; v != nil {
+		builder.WriteString("username=")
+		builder.WriteString(*v)
+	}
+	builder.WriteString(", ")
+	if v := _m.Password; v != nil {
+		builder.WriteString("password=")
+		builder.WriteString(*v)
+	}
+	builder.WriteString(", ")
+	builder.WriteString("status=")
+	builder.WriteString(_m.Status)
+	builder.WriteByte(')')
+	return builder.String()
+}
+
+// Proxies is a parsable slice of Proxy.
+type Proxies []*Proxy

backend/ent/proxy/proxy.go

+// Code generated by ent, DO NOT EDIT.
+
+package proxy
+
+import (
+	"time"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+)
+
+const (
+	// Label holds the string label denoting the proxy type in the database.
+	Label = "proxy"
+	// FieldID holds the string denoting the id field in the database.
+	FieldID = "id"
+	// FieldCreatedAt holds the string denoting the created_at field in the database.
+	FieldCreatedAt = "created_at"
+	// FieldUpdatedAt holds the string denoting the updated_at field in the database.
+	FieldUpdatedAt = "updated_at"
+	// FieldDeletedAt holds the string denoting the deleted_at field in the database.
+	FieldDeletedAt = "deleted_at"
+	// FieldName holds the string denoting the name field in the database.
+	FieldName = "name"
+	// FieldProtocol holds the string denoting the protocol field in the database.
+	FieldProtocol = "protocol"
+	// FieldHost holds the string denoting the host field in the database.
+	FieldHost = "host"
+	// FieldPort holds the string denoting the port field in the database.
+	FieldPort = "port"
+	// FieldUsername holds the string denoting the username field in the database.
+	FieldUsername = "username"
+	// FieldPassword holds the string denoting the password field in the database.
+	FieldPassword = "password"
+	// FieldStatus holds the string denoting the status field in the database.
+	FieldStatus = "status"
+	// Table holds the table name of the proxy in the database.
+	Table = "proxies"
+)
+
+// Columns holds all SQL columns for proxy fields.
+var Columns = []string{
+	FieldID,
+	FieldCreatedAt,
+	FieldUpdatedAt,
+	FieldDeletedAt,
+	FieldName,
+	FieldProtocol,
+	FieldHost,
+	FieldPort,
+	FieldUsername,
+	FieldPassword,
+	FieldStatus,
+}
+
+// ValidColumn reports if the column name is valid (part of the table columns).
+func ValidColumn(column string) bool {
+	for i := range Columns {
+		if column == Columns[i] {
+			return true
+		}
+	}
+	return false
+}
+
+// Note that the variables below are initialized by the runtime
+// package on the initialization of the application. Therefore,
+// it should be imported in the main as follows:
+//
+//	import _ "github.com/Wei-Shaw/sub2api/ent/runtime"
+var (
+	Hooks        [1]ent.Hook
+	Interceptors [1]ent.Interceptor
+	// DefaultCreatedAt holds the default value on creation for the "created_at" field.
+	DefaultCreatedAt func() time.Time
+	// DefaultUpdatedAt holds the default value on creation for the "updated_at" field.
+	DefaultUpdatedAt func() time.Time
+	// UpdateDefaultUpdatedAt holds the default value on update for the "updated_at" field.
+	UpdateDefaultUpdatedAt func() time.Time
+	// NameValidator is a validator for the "name" field. It is called by the builders before save.
+	NameValidator func(string) error
+	// ProtocolValidator is a validator for the "protocol" field. It is called by the builders before save.
+	ProtocolValidator func(string) error
+	// HostValidator is a validator for the "host" field. It is called by the builders before save.
+	HostValidator func(string) error
+	// UsernameValidator is a validator for the "username" field. It is called by the builders before save.
+	UsernameValidator func(string) error
+	// PasswordValidator is a validator for the "password" field. It is called by the builders before save.
+	PasswordValidator func(string) error
+	// DefaultStatus holds the default value on creation for the "status" field.
+	DefaultStatus string
+	// StatusValidator is a validator for the "status" field. It is called by the builders before save.
+	StatusValidator func(string) error
+)
+
+// OrderOption defines the ordering options for the Proxy queries.
+type OrderOption func(*sql.Selector)
+
+// ByID orders the results by the id field.
+func ByID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldID, opts...).ToFunc()
+}
+
+// ByCreatedAt orders the results by the created_at field.
+func ByCreatedAt(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldCreatedAt, opts...).ToFunc()
+}
+
+// ByUpdatedAt orders the results by the updated_at field.
+func ByUpdatedAt(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldUpdatedAt, opts...).ToFunc()
+}
+
+// ByDeletedAt orders the results by the deleted_at field.
+func ByDeletedAt(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldDeletedAt, opts...).ToFunc()
+}
+
+// ByName orders the results by the name field.
+func ByName(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldName, opts...).ToFunc()
+}
+
+// ByProtocol orders the results by the protocol field.
+func ByProtocol(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldProtocol, opts...).ToFunc()
+}
+
+// ByHost orders the results by the host field.
+func ByHost(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldHost, opts...).ToFunc()
+}
+
+// ByPort orders the results by the port field.
+func ByPort(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldPort, opts...).ToFunc()
+}
+
+// ByUsername orders the results by the username field.
+func ByUsername(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldUsername, opts...).ToFunc()
+}
+
+// ByPassword orders the results by the password field.
+func ByPassword(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldPassword, opts...).ToFunc()
+}
+
+// ByStatus orders the results by the status field.
+func ByStatus(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldStatus, opts...).ToFunc()
+}

backend/ent/proxy/where.go

+// Code generated by ent, DO NOT EDIT.
+
+package proxy
+
+import (
+	"time"
+
+	"entgo.io/ent/dialect/sql"
+	"github.com/Wei-Shaw/sub2api/ent/predicate"
+)
+
+// ID filters vertices based on their ID field.
+func ID(id int64) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEQ(FieldID, id))
+}
+
+// IDEQ applies the EQ predicate on the ID field.
+func IDEQ(id int64) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEQ(FieldID, id))
+}
+
+// IDNEQ applies the NEQ predicate on the ID field.
+func IDNEQ(id int64) predicate.Proxy {
+	return predicate.Proxy(sql.FieldNEQ(FieldID, id))
+}
+
+// IDIn applies the In predicate on the ID field.
+func IDIn(ids ...int64) predicate.Proxy {
+	return predicate.Proxy(sql.FieldIn(FieldID, ids...))
+}
+
+// IDNotIn applies the NotIn predicate on the ID field.
+func IDNotIn(ids ...int64) predicate.Proxy {
+	return predicate.Proxy(sql.FieldNotIn(FieldID, ids...))
+}
+
+// IDGT applies the GT predicate on the ID field.
+func IDGT(id int64) predicate.Proxy {
+	return predicate.Proxy(sql.FieldGT(FieldID, id))
+}
+
+// IDGTE applies the GTE predicate on the ID field.
+func IDGTE(id int64) predicate.Proxy {
+	return predicate.Proxy(sql.FieldGTE(FieldID, id))
+}
+
+// IDLT applies the LT predicate on the ID field.
+func IDLT(id int64) predicate.Proxy {
+	return predicate.Proxy(sql.FieldLT(FieldID, id))
+}
+
+// IDLTE applies the LTE predicate on the ID field.
+func IDLTE(id int64) predicate.Proxy {
+	return predicate.Proxy(sql.FieldLTE(FieldID, id))
+}
+
+// CreatedAt applies equality check predicate on the "created_at" field. It's identical to CreatedAtEQ.
+func CreatedAt(v time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEQ(FieldCreatedAt, v))
+}
+
+// UpdatedAt applies equality check predicate on the "updated_at" field. It's identical to UpdatedAtEQ.
+func UpdatedAt(v time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEQ(FieldUpdatedAt, v))
+}
+
+// DeletedAt applies equality check predicate on the "deleted_at" field. It's identical to DeletedAtEQ.
+func DeletedAt(v time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEQ(FieldDeletedAt, v))
+}
+
+// Name applies equality check predicate on the "name" field. It's identical to NameEQ.
+func Name(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEQ(FieldName, v))
+}
+
+// Protocol applies equality check predicate on the "protocol" field. It's identical to ProtocolEQ.
+func Protocol(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEQ(FieldProtocol, v))
+}
+
+// Host applies equality check predicate on the "host" field. It's identical to HostEQ.
+func Host(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEQ(FieldHost, v))
+}
+
+// Port applies equality check predicate on the "port" field. It's identical to PortEQ.
+func Port(v int) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEQ(FieldPort, v))
+}
+
+// Username applies equality check predicate on the "username" field. It's identical to UsernameEQ.
+func Username(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEQ(FieldUsername, v))
+}
+
+// Password applies equality check predicate on the "password" field. It's identical to PasswordEQ.
+func Password(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEQ(FieldPassword, v))
+}
+
+// Status applies equality check predicate on the "status" field. It's identical to StatusEQ.
+func Status(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEQ(FieldStatus, v))
+}
+
+// CreatedAtEQ applies the EQ predicate on the "created_at" field.
+func CreatedAtEQ(v time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEQ(FieldCreatedAt, v))
+}
+
+// CreatedAtNEQ applies the NEQ predicate on the "created_at" field.
+func CreatedAtNEQ(v time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldNEQ(FieldCreatedAt, v))
+}
+
+// CreatedAtIn applies the In predicate on the "created_at" field.
+func CreatedAtIn(vs ...time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldIn(FieldCreatedAt, vs...))
+}
+
+// CreatedAtNotIn applies the NotIn predicate on the "created_at" field.
+func CreatedAtNotIn(vs ...time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldNotIn(FieldCreatedAt, vs...))
+}
+
+// CreatedAtGT applies the GT predicate on the "created_at" field.
+func CreatedAtGT(v time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldGT(FieldCreatedAt, v))
+}
+
+// CreatedAtGTE applies the GTE predicate on the "created_at" field.
+func CreatedAtGTE(v time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldGTE(FieldCreatedAt, v))
+}
+
+// CreatedAtLT applies the LT predicate on the "created_at" field.
+func CreatedAtLT(v time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldLT(FieldCreatedAt, v))
+}
+
+// CreatedAtLTE applies the LTE predicate on the "created_at" field.
+func CreatedAtLTE(v time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldLTE(FieldCreatedAt, v))
+}
+
+// UpdatedAtEQ applies the EQ predicate on the "updated_at" field.
+func UpdatedAtEQ(v time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEQ(FieldUpdatedAt, v))
+}
+
+// UpdatedAtNEQ applies the NEQ predicate on the "updated_at" field.
+func UpdatedAtNEQ(v time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldNEQ(FieldUpdatedAt, v))
+}
+
+// UpdatedAtIn applies the In predicate on the "updated_at" field.
+func UpdatedAtIn(vs ...time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldIn(FieldUpdatedAt, vs...))
+}
+
+// UpdatedAtNotIn applies the NotIn predicate on the "updated_at" field.
+func UpdatedAtNotIn(vs ...time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldNotIn(FieldUpdatedAt, vs...))
+}
+
+// UpdatedAtGT applies the GT predicate on the "updated_at" field.
+func UpdatedAtGT(v time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldGT(FieldUpdatedAt, v))
+}
+
+// UpdatedAtGTE applies the GTE predicate on the "updated_at" field.
+func UpdatedAtGTE(v time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldGTE(FieldUpdatedAt, v))
+}
+
+// UpdatedAtLT applies the LT predicate on the "updated_at" field.
+func UpdatedAtLT(v time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldLT(FieldUpdatedAt, v))
+}
+
+// UpdatedAtLTE applies the LTE predicate on the "updated_at" field.
+func UpdatedAtLTE(v time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldLTE(FieldUpdatedAt, v))
+}
+
+// DeletedAtEQ applies the EQ predicate on the "deleted_at" field.
+func DeletedAtEQ(v time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEQ(FieldDeletedAt, v))
+}
+
+// DeletedAtNEQ applies the NEQ predicate on the "deleted_at" field.
+func DeletedAtNEQ(v time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldNEQ(FieldDeletedAt, v))
+}
+
+// DeletedAtIn applies the In predicate on the "deleted_at" field.
+func DeletedAtIn(vs ...time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldIn(FieldDeletedAt, vs...))
+}
+
+// DeletedAtNotIn applies the NotIn predicate on the "deleted_at" field.
+func DeletedAtNotIn(vs ...time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldNotIn(FieldDeletedAt, vs...))
+}
+
+// DeletedAtGT applies the GT predicate on the "deleted_at" field.
+func DeletedAtGT(v time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldGT(FieldDeletedAt, v))
+}
+
+// DeletedAtGTE applies the GTE predicate on the "deleted_at" field.
+func DeletedAtGTE(v time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldGTE(FieldDeletedAt, v))
+}
+
+// DeletedAtLT applies the LT predicate on the "deleted_at" field.
+func DeletedAtLT(v time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldLT(FieldDeletedAt, v))
+}
+
+// DeletedAtLTE applies the LTE predicate on the "deleted_at" field.
+func DeletedAtLTE(v time.Time) predicate.Proxy {
+	return predicate.Proxy(sql.FieldLTE(FieldDeletedAt, v))
+}
+
+// DeletedAtIsNil applies the IsNil predicate on the "deleted_at" field.
+func DeletedAtIsNil() predicate.Proxy {
+	return predicate.Proxy(sql.FieldIsNull(FieldDeletedAt))
+}
+
+// DeletedAtNotNil applies the NotNil predicate on the "deleted_at" field.
+func DeletedAtNotNil() predicate.Proxy {
+	return predicate.Proxy(sql.FieldNotNull(FieldDeletedAt))
+}
+
+// NameEQ applies the EQ predicate on the "name" field.
+func NameEQ(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEQ(FieldName, v))
+}
+
+// NameNEQ applies the NEQ predicate on the "name" field.
+func NameNEQ(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldNEQ(FieldName, v))
+}
+
+// NameIn applies the In predicate on the "name" field.
+func NameIn(vs ...string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldIn(FieldName, vs...))
+}
+
+// NameNotIn applies the NotIn predicate on the "name" field.
+func NameNotIn(vs ...string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldNotIn(FieldName, vs...))
+}
+
+// NameGT applies the GT predicate on the "name" field.
+func NameGT(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldGT(FieldName, v))
+}
+
+// NameGTE applies the GTE predicate on the "name" field.
+func NameGTE(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldGTE(FieldName, v))
+}
+
+// NameLT applies the LT predicate on the "name" field.
+func NameLT(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldLT(FieldName, v))
+}
+
+// NameLTE applies the LTE predicate on the "name" field.
+func NameLTE(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldLTE(FieldName, v))
+}
+
+// NameContains applies the Contains predicate on the "name" field.
+func NameContains(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldContains(FieldName, v))
+}
+
+// NameHasPrefix applies the HasPrefix predicate on the "name" field.
+func NameHasPrefix(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldHasPrefix(FieldName, v))
+}
+
+// NameHasSuffix applies the HasSuffix predicate on the "name" field.
+func NameHasSuffix(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldHasSuffix(FieldName, v))
+}
+
+// NameEqualFold applies the EqualFold predicate on the "name" field.
+func NameEqualFold(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEqualFold(FieldName, v))
+}
+
+// NameContainsFold applies the ContainsFold predicate on the "name" field.
+func NameContainsFold(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldContainsFold(FieldName, v))
+}
+
+// ProtocolEQ applies the EQ predicate on the "protocol" field.
+func ProtocolEQ(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEQ(FieldProtocol, v))
+}
+
+// ProtocolNEQ applies the NEQ predicate on the "protocol" field.
+func ProtocolNEQ(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldNEQ(FieldProtocol, v))
+}
+
+// ProtocolIn applies the In predicate on the "protocol" field.
+func ProtocolIn(vs ...string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldIn(FieldProtocol, vs...))
+}
+
+// ProtocolNotIn applies the NotIn predicate on the "protocol" field.
+func ProtocolNotIn(vs ...string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldNotIn(FieldProtocol, vs...))
+}
+
+// ProtocolGT applies the GT predicate on the "protocol" field.
+func ProtocolGT(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldGT(FieldProtocol, v))
+}
+
+// ProtocolGTE applies the GTE predicate on the "protocol" field.
+func ProtocolGTE(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldGTE(FieldProtocol, v))
+}
+
+// ProtocolLT applies the LT predicate on the "protocol" field.
+func ProtocolLT(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldLT(FieldProtocol, v))
+}
+
+// ProtocolLTE applies the LTE predicate on the "protocol" field.
+func ProtocolLTE(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldLTE(FieldProtocol, v))
+}
+
+// ProtocolContains applies the Contains predicate on the "protocol" field.
+func ProtocolContains(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldContains(FieldProtocol, v))
+}
+
+// ProtocolHasPrefix applies the HasPrefix predicate on the "protocol" field.
+func ProtocolHasPrefix(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldHasPrefix(FieldProtocol, v))
+}
+
+// ProtocolHasSuffix applies the HasSuffix predicate on the "protocol" field.
+func ProtocolHasSuffix(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldHasSuffix(FieldProtocol, v))
+}
+
+// ProtocolEqualFold applies the EqualFold predicate on the "protocol" field.
+func ProtocolEqualFold(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEqualFold(FieldProtocol, v))
+}
+
+// ProtocolContainsFold applies the ContainsFold predicate on the "protocol" field.
+func ProtocolContainsFold(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldContainsFold(FieldProtocol, v))
+}
+
+// HostEQ applies the EQ predicate on the "host" field.
+func HostEQ(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEQ(FieldHost, v))
+}
+
+// HostNEQ applies the NEQ predicate on the "host" field.
+func HostNEQ(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldNEQ(FieldHost, v))
+}
+
+// HostIn applies the In predicate on the "host" field.
+func HostIn(vs ...string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldIn(FieldHost, vs...))
+}
+
+// HostNotIn applies the NotIn predicate on the "host" field.
+func HostNotIn(vs ...string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldNotIn(FieldHost, vs...))
+}
+
+// HostGT applies the GT predicate on the "host" field.
+func HostGT(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldGT(FieldHost, v))
+}
+
+// HostGTE applies the GTE predicate on the "host" field.
+func HostGTE(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldGTE(FieldHost, v))
+}
+
+// HostLT applies the LT predicate on the "host" field.
+func HostLT(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldLT(FieldHost, v))
+}
+
+// HostLTE applies the LTE predicate on the "host" field.
+func HostLTE(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldLTE(FieldHost, v))
+}
+
+// HostContains applies the Contains predicate on the "host" field.
+func HostContains(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldContains(FieldHost, v))
+}
+
+// HostHasPrefix applies the HasPrefix predicate on the "host" field.
+func HostHasPrefix(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldHasPrefix(FieldHost, v))
+}
+
+// HostHasSuffix applies the HasSuffix predicate on the "host" field.
+func HostHasSuffix(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldHasSuffix(FieldHost, v))
+}
+
+// HostEqualFold applies the EqualFold predicate on the "host" field.
+func HostEqualFold(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEqualFold(FieldHost, v))
+}
+
+// HostContainsFold applies the ContainsFold predicate on the "host" field.
+func HostContainsFold(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldContainsFold(FieldHost, v))
+}
+
+// PortEQ applies the EQ predicate on the "port" field.
+func PortEQ(v int) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEQ(FieldPort, v))
+}
+
+// PortNEQ applies the NEQ predicate on the "port" field.
+func PortNEQ(v int) predicate.Proxy {
+	return predicate.Proxy(sql.FieldNEQ(FieldPort, v))
+}
+
+// PortIn applies the In predicate on the "port" field.
+func PortIn(vs ...int) predicate.Proxy {
+	return predicate.Proxy(sql.FieldIn(FieldPort, vs...))
+}
+
+// PortNotIn applies the NotIn predicate on the "port" field.
+func PortNotIn(vs ...int) predicate.Proxy {
+	return predicate.Proxy(sql.FieldNotIn(FieldPort, vs...))
+}
+
+// PortGT applies the GT predicate on the "port" field.
+func PortGT(v int) predicate.Proxy {
+	return predicate.Proxy(sql.FieldGT(FieldPort, v))
+}
+
+// PortGTE applies the GTE predicate on the "port" field.
+func PortGTE(v int) predicate.Proxy {
+	return predicate.Proxy(sql.FieldGTE(FieldPort, v))
+}
+
+// PortLT applies the LT predicate on the "port" field.
+func PortLT(v int) predicate.Proxy {
+	return predicate.Proxy(sql.FieldLT(FieldPort, v))
+}
+
+// PortLTE applies the LTE predicate on the "port" field.
+func PortLTE(v int) predicate.Proxy {
+	return predicate.Proxy(sql.FieldLTE(FieldPort, v))
+}
+
+// UsernameEQ applies the EQ predicate on the "username" field.
+func UsernameEQ(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEQ(FieldUsername, v))
+}
+
+// UsernameNEQ applies the NEQ predicate on the "username" field.
+func UsernameNEQ(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldNEQ(FieldUsername, v))
+}
+
+// UsernameIn applies the In predicate on the "username" field.
+func UsernameIn(vs ...string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldIn(FieldUsername, vs...))
+}
+
+// UsernameNotIn applies the NotIn predicate on the "username" field.
+func UsernameNotIn(vs ...string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldNotIn(FieldUsername, vs...))
+}
+
+// UsernameGT applies the GT predicate on the "username" field.
+func UsernameGT(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldGT(FieldUsername, v))
+}
+
+// UsernameGTE applies the GTE predicate on the "username" field.
+func UsernameGTE(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldGTE(FieldUsername, v))
+}
+
+// UsernameLT applies the LT predicate on the "username" field.
+func UsernameLT(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldLT(FieldUsername, v))
+}
+
+// UsernameLTE applies the LTE predicate on the "username" field.
+func UsernameLTE(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldLTE(FieldUsername, v))
+}
+
+// UsernameContains applies the Contains predicate on the "username" field.
+func UsernameContains(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldContains(FieldUsername, v))
+}
+
+// UsernameHasPrefix applies the HasPrefix predicate on the "username" field.
+func UsernameHasPrefix(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldHasPrefix(FieldUsername, v))
+}
+
+// UsernameHasSuffix applies the HasSuffix predicate on the "username" field.
+func UsernameHasSuffix(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldHasSuffix(FieldUsername, v))
+}
+
+// UsernameIsNil applies the IsNil predicate on the "username" field.
+func UsernameIsNil() predicate.Proxy {
+	return predicate.Proxy(sql.FieldIsNull(FieldUsername))
+}
+
+// UsernameNotNil applies the NotNil predicate on the "username" field.
+func UsernameNotNil() predicate.Proxy {
+	return predicate.Proxy(sql.FieldNotNull(FieldUsername))
+}
+
+// UsernameEqualFold applies the EqualFold predicate on the "username" field.
+func UsernameEqualFold(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEqualFold(FieldUsername, v))
+}
+
+// UsernameContainsFold applies the ContainsFold predicate on the "username" field.
+func UsernameContainsFold(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldContainsFold(FieldUsername, v))
+}
+
+// PasswordEQ applies the EQ predicate on the "password" field.
+func PasswordEQ(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEQ(FieldPassword, v))
+}
+
+// PasswordNEQ applies the NEQ predicate on the "password" field.
+func PasswordNEQ(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldNEQ(FieldPassword, v))
+}
+
+// PasswordIn applies the In predicate on the "password" field.
+func PasswordIn(vs ...string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldIn(FieldPassword, vs...))
+}
+
+// PasswordNotIn applies the NotIn predicate on the "password" field.
+func PasswordNotIn(vs ...string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldNotIn(FieldPassword, vs...))
+}
+
+// PasswordGT applies the GT predicate on the "password" field.
+func PasswordGT(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldGT(FieldPassword, v))
+}
+
+// PasswordGTE applies the GTE predicate on the "password" field.
+func PasswordGTE(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldGTE(FieldPassword, v))
+}
+
+// PasswordLT applies the LT predicate on the "password" field.
+func PasswordLT(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldLT(FieldPassword, v))
+}
+
+// PasswordLTE applies the LTE predicate on the "password" field.
+func PasswordLTE(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldLTE(FieldPassword, v))
+}
+
+// PasswordContains applies the Contains predicate on the "password" field.
+func PasswordContains(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldContains(FieldPassword, v))
+}
+
+// PasswordHasPrefix applies the HasPrefix predicate on the "password" field.
+func PasswordHasPrefix(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldHasPrefix(FieldPassword, v))
+}
+
+// PasswordHasSuffix applies the HasSuffix predicate on the "password" field.
+func PasswordHasSuffix(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldHasSuffix(FieldPassword, v))
+}
+
+// PasswordIsNil applies the IsNil predicate on the "password" field.
+func PasswordIsNil() predicate.Proxy {
+	return predicate.Proxy(sql.FieldIsNull(FieldPassword))
+}
+
+// PasswordNotNil applies the NotNil predicate on the "password" field.
+func PasswordNotNil() predicate.Proxy {
+	return predicate.Proxy(sql.FieldNotNull(FieldPassword))
+}
+
+// PasswordEqualFold applies the EqualFold predicate on the "password" field.
+func PasswordEqualFold(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEqualFold(FieldPassword, v))
+}
+
+// PasswordContainsFold applies the ContainsFold predicate on the "password" field.
+func PasswordContainsFold(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldContainsFold(FieldPassword, v))
+}
+
+// StatusEQ applies the EQ predicate on the "status" field.
+func StatusEQ(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEQ(FieldStatus, v))
+}
+
+// StatusNEQ applies the NEQ predicate on the "status" field.
+func StatusNEQ(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldNEQ(FieldStatus, v))
+}
+
+// StatusIn applies the In predicate on the "status" field.
+func StatusIn(vs ...string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldIn(FieldStatus, vs...))
+}
+
+// StatusNotIn applies the NotIn predicate on the "status" field.
+func StatusNotIn(vs ...string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldNotIn(FieldStatus, vs...))
+}
+
+// StatusGT applies the GT predicate on the "status" field.
+func StatusGT(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldGT(FieldStatus, v))
+}
+
+// StatusGTE applies the GTE predicate on the "status" field.
+func StatusGTE(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldGTE(FieldStatus, v))
+}
+
+// StatusLT applies the LT predicate on the "status" field.
+func StatusLT(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldLT(FieldStatus, v))
+}
+
+// StatusLTE applies the LTE predicate on the "status" field.
+func StatusLTE(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldLTE(FieldStatus, v))
+}
+
+// StatusContains applies the Contains predicate on the "status" field.
+func StatusContains(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldContains(FieldStatus, v))
+}
+
+// StatusHasPrefix applies the HasPrefix predicate on the "status" field.
+func StatusHasPrefix(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldHasPrefix(FieldStatus, v))
+}
+
+// StatusHasSuffix applies the HasSuffix predicate on the "status" field.
+func StatusHasSuffix(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldHasSuffix(FieldStatus, v))
+}
+
+// StatusEqualFold applies the EqualFold predicate on the "status" field.
+func StatusEqualFold(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldEqualFold(FieldStatus, v))
+}
+
+// StatusContainsFold applies the ContainsFold predicate on the "status" field.
+func StatusContainsFold(v string) predicate.Proxy {
+	return predicate.Proxy(sql.FieldContainsFold(FieldStatus, v))
+}
+
+// And groups predicates with the AND operator between them.
+func And(predicates ...predicate.Proxy) predicate.Proxy {
+	return predicate.Proxy(sql.AndPredicates(predicates...))
+}
+
+// Or groups predicates with the OR operator between them.
+func Or(predicates ...predicate.Proxy) predicate.Proxy {
+	return predicate.Proxy(sql.OrPredicates(predicates...))
+}
+
+// Not applies the not operator on the given predicate.
+func Not(p predicate.Proxy) predicate.Proxy {
+	return predicate.Proxy(sql.NotPredicates(p))
+}

backend/ent/proxy_create.go

+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+	"github.com/Wei-Shaw/sub2api/ent/proxy"
+)
+
+// ProxyCreate is the builder for creating a Proxy entity.
+type ProxyCreate struct {
+	config
+	mutation *ProxyMutation
+	hooks    []Hook
+	conflict []sql.ConflictOption
+}
+
+// SetCreatedAt sets the "created_at" field.
+func (_c *ProxyCreate) SetCreatedAt(v time.Time) *ProxyCreate {
+	_c.mutation.SetCreatedAt(v)
+	return _c
+}
+
+// SetNillableCreatedAt sets the "created_at" field if the given value is not nil.
+func (_c *ProxyCreate) SetNillableCreatedAt(v *time.Time) *ProxyCreate {
+	if v != nil {
+		_c.SetCreatedAt(*v)
+	}
+	return _c
+}
+
+// SetUpdatedAt sets the "updated_at" field.
+func (_c *ProxyCreate) SetUpdatedAt(v time.Time) *ProxyCreate {
+	_c.mutation.SetUpdatedAt(v)
+	return _c
+}
+
+// SetNillableUpdatedAt sets the "updated_at" field if the given value is not nil.
+func (_c *ProxyCreate) SetNillableUpdatedAt(v *time.Time) *ProxyCreate {
+	if v != nil {
+		_c.SetUpdatedAt(*v)
+	}
+	return _c
+}
+
+// SetDeletedAt sets the "deleted_at" field.
+func (_c *ProxyCreate) SetDeletedAt(v time.Time) *ProxyCreate {
+	_c.mutation.SetDeletedAt(v)
+	return _c
+}
+
+// SetNillableDeletedAt sets the "deleted_at" field if the given value is not nil.
+func (_c *ProxyCreate) SetNillableDeletedAt(v *time.Time) *ProxyCreate {
+	if v != nil {
+		_c.SetDeletedAt(*v)
+	}
+	return _c
+}
+
+// SetName sets the "name" field.
+func (_c *ProxyCreate) SetName(v string) *ProxyCreate {
+	_c.mutation.SetName(v)
+	return _c
+}
+
+// SetProtocol sets the "protocol" field.
+func (_c *ProxyCreate) SetProtocol(v string) *ProxyCreate {
+	_c.mutation.SetProtocol(v)
+	return _c
+}
+
+// SetHost sets the "host" field.
+func (_c *ProxyCreate) SetHost(v string) *ProxyCreate {
+	_c.mutation.SetHost(v)
+	return _c
+}
+
+// SetPort sets the "port" field.
+func (_c *ProxyCreate) SetPort(v int) *ProxyCreate {
+	_c.mutation.SetPort(v)
+	return _c
+}
+
+// SetUsername sets the "username" field.
+func (_c *ProxyCreate) SetUsername(v string) *ProxyCreate {
+	_c.mutation.SetUsername(v)
+	return _c
+}
+
+// SetNillableUsername sets the "username" field if the given value is not nil.
+func (_c *ProxyCreate) SetNillableUsername(v *string) *ProxyCreate {
+	if v != nil {
+		_c.SetUsername(*v)
+	}
+	return _c
+}
+
+// SetPassword sets the "password" field.
+func (_c *ProxyCreate) SetPassword(v string) *ProxyCreate {
+	_c.mutation.SetPassword(v)
+	return _c
+}
+
+// SetNillablePassword sets the "password" field if the given value is not nil.
+func (_c *ProxyCreate) SetNillablePassword(v *string) *ProxyCreate {
+	if v != nil {
+		_c.SetPassword(*v)
+	}
+	return _c
+}
+
+// SetStatus sets the "status" field.
+func (_c *ProxyCreate) SetStatus(v string) *ProxyCreate {
+	_c.mutation.SetStatus(v)
+	return _c
+}
+
+// SetNillableStatus sets the "status" field if the given value is not nil.
+func (_c *ProxyCreate) SetNillableStatus(v *string) *ProxyCreate {
+	if v != nil {
+		_c.SetStatus(*v)
+	}
+	return _c
+}
+
+// Mutation returns the ProxyMutation object of the builder.
+func (_c *ProxyCreate) Mutation() *ProxyMutation {
+	return _c.mutation
+}
+
+// Save creates the Proxy in the database.
+func (_c *ProxyCreate) Save(ctx context.Context) (*Proxy, error) {
+	if err := _c.defaults(); err != nil {
+		return nil, err
+	}
+	return withHooks(ctx, _c.sqlSave, _c.mutation, _c.hooks)
+}
+
+// SaveX calls Save and panics if Save returns an error.
+func (_c *ProxyCreate) SaveX(ctx context.Context) *Proxy {
+	v, err := _c.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (_c *ProxyCreate) Exec(ctx context.Context) error {
+	_, err := _c.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_c *ProxyCreate) ExecX(ctx context.Context) {
+	if err := _c.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// defaults sets the default values of the builder before save.
+func (_c *ProxyCreate) defaults() error {
+	if _, ok := _c.mutation.CreatedAt(); !ok {
+		if proxy.DefaultCreatedAt == nil {
+			return fmt.Errorf("ent: uninitialized proxy.DefaultCreatedAt (forgotten import ent/runtime?)")
+		}
+		v := proxy.DefaultCreatedAt()
+		_c.mutation.SetCreatedAt(v)
+	}
+	if _, ok := _c.mutation.UpdatedAt(); !ok {
+		if proxy.DefaultUpdatedAt == nil {
+			return fmt.Errorf("ent: uninitialized proxy.DefaultUpdatedAt (forgotten import ent/runtime?)")
+		}
+		v := proxy.DefaultUpdatedAt()
+		_c.mutation.SetUpdatedAt(v)
+	}
+	if _, ok := _c.mutation.Status(); !ok {
+		v := proxy.DefaultStatus
+		_c.mutation.SetStatus(v)
+	}
+	return nil
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (_c *ProxyCreate) check() error {
+	if _, ok := _c.mutation.CreatedAt(); !ok {
+		return &ValidationError{Name: "created_at", err: errors.New(`ent: missing required field "Proxy.created_at"`)}
+	}
+	if _, ok := _c.mutation.UpdatedAt(); !ok {
+		return &ValidationError{Name: "updated_at", err: errors.New(`ent: missing required field "Proxy.updated_at"`)}
+	}
+	if _, ok := _c.mutation.Name(); !ok {
+		return &ValidationError{Name: "name", err: errors.New(`ent: missing required field "Proxy.name"`)}
+	}
+	if v, ok := _c.mutation.Name(); ok {
+		if err := proxy.NameValidator(v); err != nil {
+			return &ValidationError{Name: "name", err: fmt.Errorf(`ent: validator failed for field "Proxy.name": %w`, err)}
+		}
+	}
+	if _, ok := _c.mutation.Protocol(); !ok {
+		return &ValidationError{Name: "protocol", err: errors.New(`ent: missing required field "Proxy.protocol"`)}
+	}
+	if v, ok := _c.mutation.Protocol(); ok {
+		if err := proxy.ProtocolValidator(v); err != nil {
+			return &ValidationError{Name: "protocol", err: fmt.Errorf(`ent: validator failed for field "Proxy.protocol": %w`, err)}
+		}
+	}
+	if _, ok := _c.mutation.Host(); !ok {
+		return &ValidationError{Name: "host", err: errors.New(`ent: missing required field "Proxy.host"`)}
+	}
+	if v, ok := _c.mutation.Host(); ok {
+		if err := proxy.HostValidator(v); err != nil {
+			return &ValidationError{Name: "host", err: fmt.Errorf(`ent: validator failed for field "Proxy.host": %w`, err)}
+		}
+	}
+	if _, ok := _c.mutation.Port(); !ok {
+		return &ValidationError{Name: "port", err: errors.New(`ent: missing required field "Proxy.port"`)}
+	}
+	if v, ok := _c.mutation.Username(); ok {
+		if err := proxy.UsernameValidator(v); err != nil {
+			return &ValidationError{Name: "username", err: fmt.Errorf(`ent: validator failed for field "Proxy.username": %w`, err)}
+		}
+	}
+	if v, ok := _c.mutation.Password(); ok {
+		if err := proxy.PasswordValidator(v); err != nil {
+			return &ValidationError{Name: "password", err: fmt.Errorf(`ent: validator failed for field "Proxy.password": %w`, err)}
+		}
+	}
+	if _, ok := _c.mutation.Status(); !ok {
+		return &ValidationError{Name: "status", err: errors.New(`ent: missing required field "Proxy.status"`)}
+	}
+	if v, ok := _c.mutation.Status(); ok {
+		if err := proxy.StatusValidator(v); err != nil {
+			return &ValidationError{Name: "status", err: fmt.Errorf(`ent: validator failed for field "Proxy.status": %w`, err)}
+		}
+	}
+	return nil
+}
+
+func (_c *ProxyCreate) sqlSave(ctx context.Context) (*Proxy, error) {
+	if err := _c.check(); err != nil {
+		return nil, err
+	}
+	_node, _spec := _c.createSpec()
+	if err := sqlgraph.CreateNode(ctx, _c.driver, _spec); err != nil {
+		if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	id := _spec.ID.Value.(int64)
+	_node.ID = int64(id)
+	_c.mutation.id = &_node.ID
+	_c.mutation.done = true
+	return _node, nil
+}
+
+func (_c *ProxyCreate) createSpec() (*Proxy, *sqlgraph.CreateSpec) {
+	var (
+		_node = &Proxy{config: _c.config}
+		_spec = sqlgraph.NewCreateSpec(proxy.Table, sqlgraph.NewFieldSpec(proxy.FieldID, field.TypeInt64))
+	)
+	_spec.OnConflict = _c.conflict
+	if value, ok := _c.mutation.CreatedAt(); ok {
+		_spec.SetField(proxy.FieldCreatedAt, field.TypeTime, value)
+		_node.CreatedAt = value
+	}
+	if value, ok := _c.mutation.UpdatedAt(); ok {
+		_spec.SetField(proxy.FieldUpdatedAt, field.TypeTime, value)
+		_node.UpdatedAt = value
+	}
+	if value, ok := _c.mutation.DeletedAt(); ok {
+		_spec.SetField(proxy.FieldDeletedAt, field.TypeTime, value)
+		_node.DeletedAt = &value
+	}
+	if value, ok := _c.mutation.Name(); ok {
+		_spec.SetField(proxy.FieldName, field.TypeString, value)
+		_node.Name = value
+	}
+	if value, ok := _c.mutation.Protocol(); ok {
+		_spec.SetField(proxy.FieldProtocol, field.TypeString, value)
+		_node.Protocol = value
+	}
+	if value, ok := _c.mutation.Host(); ok {
+		_spec.SetField(proxy.FieldHost, field.TypeString, value)
+		_node.Host = value
+	}
+	if value, ok := _c.mutation.Port(); ok {
+		_spec.SetField(proxy.FieldPort, field.TypeInt, value)
+		_node.Port = value
+	}
+	if value, ok := _c.mutation.Username(); ok {
+		_spec.SetField(proxy.FieldUsername, field.TypeString, value)
+		_node.Username = &value
+	}
+	if value, ok := _c.mutation.Password(); ok {
+		_spec.SetField(proxy.FieldPassword, field.TypeString, value)
+		_node.Password = &value
+	}
+	if value, ok := _c.mutation.Status(); ok {
+		_spec.SetField(proxy.FieldStatus, field.TypeString, value)
+		_node.Status = value
+	}
+	return _node, _spec
+}
+
+// OnConflict allows configuring the `ON CONFLICT` / `ON DUPLICATE KEY` clause
+// of the `INSERT` statement. For example:
+//
+//	client.Proxy.Create().
+//		SetCreatedAt(v).
+//		OnConflict(
+//			// Update the row with the new values
+//			// the was proposed for insertion.
+//			sql.ResolveWithNewValues(),
+//		).
+//		// Override some of the fields with custom
+//		// update values.
+//		Update(func(u *ent.ProxyUpsert) {
+//			SetCreatedAt(v+v).
+//		}).
+//		Exec(ctx)
+func (_c *ProxyCreate) OnConflict(opts ...sql.ConflictOption) *ProxyUpsertOne {
+	_c.conflict = opts
+	return &ProxyUpsertOne{
+		create: _c,
+	}
+}
+
+// OnConflictColumns calls `OnConflict` and configures the columns
+// as conflict target. Using this option is equivalent to using:
+//
+//	client.Proxy.Create().
+//		OnConflict(sql.ConflictColumns(columns...)).
+//		Exec(ctx)
+func (_c *ProxyCreate) OnConflictColumns(columns ...string) *ProxyUpsertOne {
+	_c.conflict = append(_c.conflict, sql.ConflictColumns(columns...))
+	return &ProxyUpsertOne{
+		create: _c,
+	}
+}
+
+type (
+	// ProxyUpsertOne is the builder for "upsert"-ing
+	//  one Proxy node.
+	ProxyUpsertOne struct {
+		create *ProxyCreate
+	}
+
+	// ProxyUpsert is the "OnConflict" setter.
+	ProxyUpsert struct {
+		*sql.UpdateSet
+	}
+)
+
+// SetUpdatedAt sets the "updated_at" field.
+func (u *ProxyUpsert) SetUpdatedAt(v time.Time) *ProxyUpsert {
+	u.Set(proxy.FieldUpdatedAt, v)
+	return u
+}
+
+// UpdateUpdatedAt sets the "updated_at" field to the value that was provided on create.
+func (u *ProxyUpsert) UpdateUpdatedAt() *ProxyUpsert {
+	u.SetExcluded(proxy.FieldUpdatedAt)
+	return u
+}
+
+// SetDeletedAt sets the "deleted_at" field.
+func (u *ProxyUpsert) SetDeletedAt(v time.Time) *ProxyUpsert {
+	u.Set(proxy.FieldDeletedAt, v)
+	return u
+}
+
+// UpdateDeletedAt sets the "deleted_at" field to the value that was provided on create.
+func (u *ProxyUpsert) UpdateDeletedAt() *ProxyUpsert {
+	u.SetExcluded(proxy.FieldDeletedAt)
+	return u
+}
+
+// ClearDeletedAt clears the value of the "deleted_at" field.
+func (u *ProxyUpsert) ClearDeletedAt() *ProxyUpsert {
+	u.SetNull(proxy.FieldDeletedAt)
+	return u
+}
+
+// SetName sets the "name" field.
+func (u *ProxyUpsert) SetName(v string) *ProxyUpsert {
+	u.Set(proxy.FieldName, v)
+	return u
+}
+
+// UpdateName sets the "name" field to the value that was provided on create.
+func (u *ProxyUpsert) UpdateName() *ProxyUpsert {
+	u.SetExcluded(proxy.FieldName)
+	return u
+}
+
+// SetProtocol sets the "protocol" field.
+func (u *ProxyUpsert) SetProtocol(v string) *ProxyUpsert {
+	u.Set(proxy.FieldProtocol, v)
+	return u
+}
+
+// UpdateProtocol sets the "protocol" field to the value that was provided on create.
+func (u *ProxyUpsert) UpdateProtocol() *ProxyUpsert {
+	u.SetExcluded(proxy.FieldProtocol)
+	return u
+}
+
+// SetHost sets the "host" field.
+func (u *ProxyUpsert) SetHost(v string) *ProxyUpsert {
+	u.Set(proxy.FieldHost, v)
+	return u
+}
+
+// UpdateHost sets the "host" field to the value that was provided on create.
+func (u *ProxyUpsert) UpdateHost() *ProxyUpsert {
+	u.SetExcluded(proxy.FieldHost)
+	return u
+}
+
+// SetPort sets the "port" field.
+func (u *ProxyUpsert) SetPort(v int) *ProxyUpsert {
+	u.Set(proxy.FieldPort, v)
+	return u
+}
+
+// UpdatePort sets the "port" field to the value that was provided on create.
+func (u *ProxyUpsert) UpdatePort() *ProxyUpsert {
+	u.SetExcluded(proxy.FieldPort)
+	return u
+}
+
+// AddPort adds v to the "port" field.
+func (u *ProxyUpsert) AddPort(v int) *ProxyUpsert {
+	u.Add(proxy.FieldPort, v)
+	return u
+}
+
+// SetUsername sets the "username" field.
+func (u *ProxyUpsert) SetUsername(v string) *ProxyUpsert {
+	u.Set(proxy.FieldUsername, v)
+	return u
+}
+
+// UpdateUsername sets the "username" field to the value that was provided on create.
+func (u *ProxyUpsert) UpdateUsername() *ProxyUpsert {
+	u.SetExcluded(proxy.FieldUsername)
+	return u
+}
+
+// ClearUsername clears the value of the "username" field.
+func (u *ProxyUpsert) ClearUsername() *ProxyUpsert {
+	u.SetNull(proxy.FieldUsername)
+	return u
+}
+
+// SetPassword sets the "password" field.
+func (u *ProxyUpsert) SetPassword(v string) *ProxyUpsert {
+	u.Set(proxy.FieldPassword, v)
+	return u
+}
+
+// UpdatePassword sets the "password" field to the value that was provided on create.
+func (u *ProxyUpsert) UpdatePassword() *ProxyUpsert {
+	u.SetExcluded(proxy.FieldPassword)
+	return u
+}
+
+// ClearPassword clears the value of the "password" field.
+func (u *ProxyUpsert) ClearPassword() *ProxyUpsert {
+	u.SetNull(proxy.FieldPassword)
+	return u
+}
+
+// SetStatus sets the "status" field.
+func (u *ProxyUpsert) SetStatus(v string) *ProxyUpsert {
+	u.Set(proxy.FieldStatus, v)
+	return u
+}
+
+// UpdateStatus sets the "status" field to the value that was provided on create.
+func (u *ProxyUpsert) UpdateStatus() *ProxyUpsert {
+	u.SetExcluded(proxy.FieldStatus)
+	return u
+}
+
+// UpdateNewValues updates the mutable fields using the new values that were set on create.
+// Using this option is equivalent to using:
+//
+//	client.Proxy.Create().
+//		OnConflict(
+//			sql.ResolveWithNewValues(),
+//		).
+//		Exec(ctx)
+func (u *ProxyUpsertOne) UpdateNewValues() *ProxyUpsertOne {
+	u.create.conflict = append(u.create.conflict, sql.ResolveWithNewValues())
+	u.create.conflict = append(u.create.conflict, sql.ResolveWith(func(s *sql.UpdateSet) {
+		if _, exists := u.create.mutation.CreatedAt(); exists {
+			s.SetIgnore(proxy.FieldCreatedAt)
+		}
+	}))
+	return u
+}
+
+// Ignore sets each column to itself in case of conflict.
+// Using this option is equivalent to using:
+//
+//	client.Proxy.Create().
+//	    OnConflict(sql.ResolveWithIgnore()).
+//	    Exec(ctx)
+func (u *ProxyUpsertOne) Ignore() *ProxyUpsertOne {
+	u.create.conflict = append(u.create.conflict, sql.ResolveWithIgnore())
+	return u
+}
+
+// DoNothing configures the conflict_action to `DO NOTHING`.
+// Supported only by SQLite and PostgreSQL.
+func (u *ProxyUpsertOne) DoNothing() *ProxyUpsertOne {
+	u.create.conflict = append(u.create.conflict, sql.DoNothing())
+	return u
+}
+
+// Update allows overriding fields `UPDATE` values. See the ProxyCreate.OnConflict
+// documentation for more info.
+func (u *ProxyUpsertOne) Update(set func(*ProxyUpsert)) *ProxyUpsertOne {
+	u.create.conflict = append(u.create.conflict, sql.ResolveWith(func(update *sql.UpdateSet) {
+		set(&ProxyUpsert{UpdateSet: update})
+	}))
+	return u
+}
+
+// SetUpdatedAt sets the "updated_at" field.
+func (u *ProxyUpsertOne) SetUpdatedAt(v time.Time) *ProxyUpsertOne {
+	return u.Update(func(s *ProxyUpsert) {
+		s.SetUpdatedAt(v)
+	})
+}
+
+// UpdateUpdatedAt sets the "updated_at" field to the value that was provided on create.
+func (u *ProxyUpsertOne) UpdateUpdatedAt() *ProxyUpsertOne {
+	return u.Update(func(s *ProxyUpsert) {
+		s.UpdateUpdatedAt()
+	})
+}
+
+// SetDeletedAt sets the "deleted_at" field.
+func (u *ProxyUpsertOne) SetDeletedAt(v time.Time) *ProxyUpsertOne {
+	return u.Update(func(s *ProxyUpsert) {
+		s.SetDeletedAt(v)
+	})
+}
+
+// UpdateDeletedAt sets the "deleted_at" field to the value that was provided on create.
+func (u *ProxyUpsertOne) UpdateDeletedAt() *ProxyUpsertOne {
+	return u.Update(func(s *ProxyUpsert) {
+		s.UpdateDeletedAt()
+	})
+}
+
+// ClearDeletedAt clears the value of the "deleted_at" field.
+func (u *ProxyUpsertOne) ClearDeletedAt() *ProxyUpsertOne {
+	return u.Update(func(s *ProxyUpsert) {
+		s.ClearDeletedAt()
+	})
+}
+
+// SetName sets the "name" field.
+func (u *ProxyUpsertOne) SetName(v string) *ProxyUpsertOne {
+	return u.Update(func(s *ProxyUpsert) {
+		s.SetName(v)
+	})
+}
+
+// UpdateName sets the "name" field to the value that was provided on create.
+func (u *ProxyUpsertOne) UpdateName() *ProxyUpsertOne {
+	return u.Update(func(s *ProxyUpsert) {
+		s.UpdateName()
+	})
+}
+
+// SetProtocol sets the "protocol" field.
+func (u *ProxyUpsertOne) SetProtocol(v string) *ProxyUpsertOne {
+	return u.Update(func(s *ProxyUpsert) {
+		s.SetProtocol(v)
+	})
+}
+
+// UpdateProtocol sets the "protocol" field to the value that was provided on create.
+func (u *ProxyUpsertOne) UpdateProtocol() *ProxyUpsertOne {
+	return u.Update(func(s *ProxyUpsert) {
+		s.UpdateProtocol()
+	})
+}
+
+// SetHost sets the "host" field.
+func (u *ProxyUpsertOne) SetHost(v string) *ProxyUpsertOne {
+	return u.Update(func(s *ProxyUpsert) {
+		s.SetHost(v)
+	})
+}
+
+// UpdateHost sets the "host" field to the value that was provided on create.
+func (u *ProxyUpsertOne) UpdateHost() *ProxyUpsertOne {
+	return u.Update(func(s *ProxyUpsert) {
+		s.UpdateHost()
+	})
+}
+
+// SetPort sets the "port" field.
+func (u *ProxyUpsertOne) SetPort(v int) *ProxyUpsertOne {
+	return u.Update(func(s *ProxyUpsert) {
+		s.SetPort(v)
+	})
+}
+
+// AddPort adds v to the "port" field.
+func (u *ProxyUpsertOne) AddPort(v int) *ProxyUpsertOne {
+	return u.Update(func(s *ProxyUpsert) {
+		s.AddPort(v)
+	})
+}
+
+// UpdatePort sets the "port" field to the value that was provided on create.
+func (u *ProxyUpsertOne) UpdatePort() *ProxyUpsertOne {
+	return u.Update(func(s *ProxyUpsert) {
+		s.UpdatePort()
+	})
+}
+
+// SetUsername sets the "username" field.
+func (u *ProxyUpsertOne) SetUsername(v string) *ProxyUpsertOne {
+	return u.Update(func(s *ProxyUpsert) {
+		s.SetUsername(v)
+	})
+}
+
+// UpdateUsername sets the "username" field to the value that was provided on create.
+func (u *ProxyUpsertOne) UpdateUsername() *ProxyUpsertOne {
+	return u.Update(func(s *ProxyUpsert) {
+		s.UpdateUsername()
+	})
+}
+
+// ClearUsername clears the value of the "username" field.
+func (u *ProxyUpsertOne) ClearUsername() *ProxyUpsertOne {
+	return u.Update(func(s *ProxyUpsert) {
+		s.ClearUsername()
+	})
+}
+
+// SetPassword sets the "password" field.
+func (u *ProxyUpsertOne) SetPassword(v string) *ProxyUpsertOne {
+	return u.Update(func(s *ProxyUpsert) {
+		s.SetPassword(v)
+	})
+}
+
+// UpdatePassword sets the "password" field to the value that was provided on create.
+func (u *ProxyUpsertOne) UpdatePassword() *ProxyUpsertOne {
+	return u.Update(func(s *ProxyUpsert) {
+		s.UpdatePassword()
+	})
+}
+
+// ClearPassword clears the value of the "password" field.
+func (u *ProxyUpsertOne) ClearPassword() *ProxyUpsertOne {
+	return u.Update(func(s *ProxyUpsert) {
+		s.ClearPassword()
+	})
+}
+
+// SetStatus sets the "status" field.
+func (u *ProxyUpsertOne) SetStatus(v string) *ProxyUpsertOne {
+	return u.Update(func(s *ProxyUpsert) {
+		s.SetStatus(v)
+	})
+}
+
+// UpdateStatus sets the "status" field to the value that was provided on create.
+func (u *ProxyUpsertOne) UpdateStatus() *ProxyUpsertOne {
+	return u.Update(func(s *ProxyUpsert) {
+		s.UpdateStatus()
+	})
+}
+
+// Exec executes the query.
+func (u *ProxyUpsertOne) Exec(ctx context.Context) error {
+	if len(u.create.conflict) == 0 {
+		return errors.New("ent: missing options for ProxyCreate.OnConflict")
+	}
+	return u.create.Exec(ctx)
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (u *ProxyUpsertOne) ExecX(ctx context.Context) {
+	if err := u.create.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// Exec executes the UPSERT query and returns the inserted/updated ID.
+func (u *ProxyUpsertOne) ID(ctx context.Context) (id int64, err error) {
+	node, err := u.create.Save(ctx)
+	if err != nil {
+		return id, err
+	}
+	return node.ID, nil
+}
+
+// IDX is like ID, but panics if an error occurs.
+func (u *ProxyUpsertOne) IDX(ctx context.Context) int64 {
+	id, err := u.ID(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return id
+}
+
+// ProxyCreateBulk is the builder for creating many Proxy entities in bulk.
+type ProxyCreateBulk struct {
+	config
+	err      error
+	builders []*ProxyCreate
+	conflict []sql.ConflictOption
+}
+
+// Save creates the Proxy entities in the database.
+func (_c *ProxyCreateBulk) Save(ctx context.Context) ([]*Proxy, error) {
+	if _c.err != nil {
+		return nil, _c.err
+	}
+	specs := make([]*sqlgraph.CreateSpec, len(_c.builders))
+	nodes := make([]*Proxy, len(_c.builders))
+	mutators := make([]Mutator, len(_c.builders))
+	for i := range _c.builders {
+		func(i int, root context.Context) {
+			builder := _c.builders[i]
+			builder.defaults()
+			var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
+				mutation, ok := m.(*ProxyMutation)
+				if !ok {
+					return nil, fmt.Errorf("unexpected mutation type %T", m)
+				}
+				if err := builder.check(); err != nil {
+					return nil, err
+				}
+				builder.mutation = mutation
+				var err error
+				nodes[i], specs[i] = builder.createSpec()
+				if i < len(mutators)-1 {
+					_, err = mutators[i+1].Mutate(root, _c.builders[i+1].mutation)
+				} else {
+					spec := &sqlgraph.BatchCreateSpec{Nodes: specs}
+					spec.OnConflict = _c.conflict
+					// Invoke the actual operation on the latest mutation in the chain.
+					if err = sqlgraph.BatchCreate(ctx, _c.driver, spec); err != nil {
+						if sqlgraph.IsConstraintError(err) {
+							err = &ConstraintError{msg: err.Error(), wrap: err}
+						}
+					}
+				}
+				if err != nil {
+					return nil, err
+				}
+				mutation.id = &nodes[i].ID
+				if specs[i].ID.Value != nil {
+					id := specs[i].ID.Value.(int64)
+					nodes[i].ID = int64(id)
+				}
+				mutation.done = true
+				return nodes[i], nil
+			})
+			for i := len(builder.hooks) - 1; i >= 0; i-- {
+				mut = builder.hooks[i](mut)
+			}
+			mutators[i] = mut
+		}(i, ctx)
+	}
+	if len(mutators) > 0 {
+		if _, err := mutators[0].Mutate(ctx, _c.builders[0].mutation); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_c *ProxyCreateBulk) SaveX(ctx context.Context) []*Proxy {
+	v, err := _c.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (_c *ProxyCreateBulk) Exec(ctx context.Context) error {
+	_, err := _c.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_c *ProxyCreateBulk) ExecX(ctx context.Context) {
+	if err := _c.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// OnConflict allows configuring the `ON CONFLICT` / `ON DUPLICATE KEY` clause
+// of the `INSERT` statement. For example:
+//
+//	client.Proxy.CreateBulk(builders...).
+//		OnConflict(
+//			// Update the row with the new values
+//			// the was proposed for insertion.
+//			sql.ResolveWithNewValues(),
+//		).
+//		// Override some of the fields with custom
+//		// update values.
+//		Update(func(u *ent.ProxyUpsert) {
+//			SetCreatedAt(v+v).
+//		}).
+//		Exec(ctx)
+func (_c *ProxyCreateBulk) OnConflict(opts ...sql.ConflictOption) *ProxyUpsertBulk {
+	_c.conflict = opts
+	return &ProxyUpsertBulk{
+		create: _c,
+	}
+}
+
+// OnConflictColumns calls `OnConflict` and configures the columns
+// as conflict target. Using this option is equivalent to using:
+//
+//	client.Proxy.Create().
+//		OnConflict(sql.ConflictColumns(columns...)).
+//		Exec(ctx)
+func (_c *ProxyCreateBulk) OnConflictColumns(columns ...string) *ProxyUpsertBulk {
+	_c.conflict = append(_c.conflict, sql.ConflictColumns(columns...))
+	return &ProxyUpsertBulk{
+		create: _c,
+	}
+}
+
+// ProxyUpsertBulk is the builder for "upsert"-ing
+// a bulk of Proxy nodes.
+type ProxyUpsertBulk struct {
+	create *ProxyCreateBulk
+}
+
+// UpdateNewValues updates the mutable fields using the new values that
+// were set on create. Using this option is equivalent to using:
+//
+//	client.Proxy.Create().
+//		OnConflict(
+//			sql.ResolveWithNewValues(),
+//		).
+//		Exec(ctx)
+func (u *ProxyUpsertBulk) UpdateNewValues() *ProxyUpsertBulk {
+	u.create.conflict = append(u.create.conflict, sql.ResolveWithNewValues())
+	u.create.conflict = append(u.create.conflict, sql.ResolveWith(func(s *sql.UpdateSet) {
+		for _, b := range u.create.builders {
+			if _, exists := b.mutation.CreatedAt(); exists {
+				s.SetIgnore(proxy.FieldCreatedAt)
+			}
+		}
+	}))
+	return u
+}
+
+// Ignore sets each column to itself in case of conflict.
+// Using this option is equivalent to using:
+//
+//	client.Proxy.Create().
+//		OnConflict(sql.ResolveWithIgnore()).
+//		Exec(ctx)
+func (u *ProxyUpsertBulk) Ignore() *ProxyUpsertBulk {
+	u.create.conflict = append(u.create.conflict, sql.ResolveWithIgnore())
+	return u
+}
+
+// DoNothing configures the conflict_action to `DO NOTHING`.
+// Supported only by SQLite and PostgreSQL.
+func (u *ProxyUpsertBulk) DoNothing() *ProxyUpsertBulk {
+	u.create.conflict = append(u.create.conflict, sql.DoNothing())
+	return u
+}
+
+// Update allows overriding fields `UPDATE` values. See the ProxyCreateBulk.OnConflict
+// documentation for more info.
+func (u *ProxyUpsertBulk) Update(set func(*ProxyUpsert)) *ProxyUpsertBulk {
+	u.create.conflict = append(u.create.conflict, sql.ResolveWith(func(update *sql.UpdateSet) {
+		set(&ProxyUpsert{UpdateSet: update})
+	}))
+	return u
+}
+
+// SetUpdatedAt sets the "updated_at" field.
+func (u *ProxyUpsertBulk) SetUpdatedAt(v time.Time) *ProxyUpsertBulk {
+	return u.Update(func(s *ProxyUpsert) {
+		s.SetUpdatedAt(v)
+	})
+}
+
+// UpdateUpdatedAt sets the "updated_at" field to the value that was provided on create.
+func (u *ProxyUpsertBulk) UpdateUpdatedAt() *ProxyUpsertBulk {
+	return u.Update(func(s *ProxyUpsert) {
+		s.UpdateUpdatedAt()
+	})
+}
+
+// SetDeletedAt sets the "deleted_at" field.
+func (u *ProxyUpsertBulk) SetDeletedAt(v time.Time) *ProxyUpsertBulk {
+	return u.Update(func(s *ProxyUpsert) {
+		s.SetDeletedAt(v)
+	})
+}
+
+// UpdateDeletedAt sets the "deleted_at" field to the value that was provided on create.
+func (u *ProxyUpsertBulk) UpdateDeletedAt() *ProxyUpsertBulk {
+	return u.Update(func(s *ProxyUpsert) {
+		s.UpdateDeletedAt()
+	})
+}
+
+// ClearDeletedAt clears the value of the "deleted_at" field.
+func (u *ProxyUpsertBulk) ClearDeletedAt() *ProxyUpsertBulk {
+	return u.Update(func(s *ProxyUpsert) {
+		s.ClearDeletedAt()
+	})
+}
+
+// SetName sets the "name" field.
+func (u *ProxyUpsertBulk) SetName(v string) *ProxyUpsertBulk {
+	return u.Update(func(s *ProxyUpsert) {
+		s.SetName(v)
+	})
+}
+
+// UpdateName sets the "name" field to the value that was provided on create.
+func (u *ProxyUpsertBulk) UpdateName() *ProxyUpsertBulk {
+	return u.Update(func(s *ProxyUpsert) {
+		s.UpdateName()
+	})
+}
+
+// SetProtocol sets the "protocol" field.
+func (u *ProxyUpsertBulk) SetProtocol(v string) *ProxyUpsertBulk {
+	return u.Update(func(s *ProxyUpsert) {
+		s.SetProtocol(v)
+	})
+}
+
+// UpdateProtocol sets the "protocol" field to the value that was provided on create.
+func (u *ProxyUpsertBulk) UpdateProtocol() *ProxyUpsertBulk {
+	return u.Update(func(s *ProxyUpsert) {
+		s.UpdateProtocol()
+	})
+}
+
+// SetHost sets the "host" field.
+func (u *ProxyUpsertBulk) SetHost(v string) *ProxyUpsertBulk {
+	return u.Update(func(s *ProxyUpsert) {
+		s.SetHost(v)
+	})
+}
+
+// UpdateHost sets the "host" field to the value that was provided on create.
+func (u *ProxyUpsertBulk) UpdateHost() *ProxyUpsertBulk {
+	return u.Update(func(s *ProxyUpsert) {
+		s.UpdateHost()
+	})
+}
+
+// SetPort sets the "port" field.
+func (u *ProxyUpsertBulk) SetPort(v int) *ProxyUpsertBulk {
+	return u.Update(func(s *ProxyUpsert) {
+		s.SetPort(v)
+	})
+}
+
+// AddPort adds v to the "port" field.
+func (u *ProxyUpsertBulk) AddPort(v int) *ProxyUpsertBulk {
+	return u.Update(func(s *ProxyUpsert) {
+		s.AddPort(v)
+	})
+}
+
+// UpdatePort sets the "port" field to the value that was provided on create.
+func (u *ProxyUpsertBulk) UpdatePort() *ProxyUpsertBulk {
+	return u.Update(func(s *ProxyUpsert) {
+		s.UpdatePort()
+	})
+}
+
+// SetUsername sets the "username" field.
+func (u *ProxyUpsertBulk) SetUsername(v string) *ProxyUpsertBulk {
+	return u.Update(func(s *ProxyUpsert) {
+		s.SetUsername(v)
+	})
+}
+
+// UpdateUsername sets the "username" field to the value that was provided on create.
+func (u *ProxyUpsertBulk) UpdateUsername() *ProxyUpsertBulk {
+	return u.Update(func(s *ProxyUpsert) {
+		s.UpdateUsername()
+	})
+}
+
+// ClearUsername clears the value of the "username" field.
+func (u *ProxyUpsertBulk) ClearUsername() *ProxyUpsertBulk {
+	return u.Update(func(s *ProxyUpsert) {
+		s.ClearUsername()
+	})
+}
+
+// SetPassword sets the "password" field.
+func (u *ProxyUpsertBulk) SetPassword(v string) *ProxyUpsertBulk {
+	return u.Update(func(s *ProxyUpsert) {
+		s.SetPassword(v)
+	})
+}
+
+// UpdatePassword sets the "password" field to the value that was provided on create.
+func (u *ProxyUpsertBulk) UpdatePassword() *ProxyUpsertBulk {
+	return u.Update(func(s *ProxyUpsert) {
+		s.UpdatePassword()
+	})
+}
+
+// ClearPassword clears the value of the "password" field.
+func (u *ProxyUpsertBulk) ClearPassword() *ProxyUpsertBulk {
+	return u.Update(func(s *ProxyUpsert) {
+		s.ClearPassword()
+	})
+}
+
+// SetStatus sets the "status" field.
+func (u *ProxyUpsertBulk) SetStatus(v string) *ProxyUpsertBulk {
+	return u.Update(func(s *ProxyUpsert) {
+		s.SetStatus(v)
+	})
+}
+
+// UpdateStatus sets the "status" field to the value that was provided on create.
+func (u *ProxyUpsertBulk) UpdateStatus() *ProxyUpsertBulk {
+	return u.Update(func(s *ProxyUpsert) {
+		s.UpdateStatus()
+	})
+}
+
+// Exec executes the query.
+func (u *ProxyUpsertBulk) Exec(ctx context.Context) error {
+	if u.create.err != nil {
+		return u.create.err
+	}
+	for i, b := range u.create.builders {
+		if len(b.conflict) != 0 {
+			return fmt.Errorf("ent: OnConflict was set for builder %d. Set it on the ProxyCreateBulk instead", i)
+		}
+	}
+	if len(u.create.conflict) == 0 {
+		return errors.New("ent: missing options for ProxyCreateBulk.OnConflict")
+	}
+	return u.create.Exec(ctx)
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (u *ProxyUpsertBulk) ExecX(ctx context.Context) {
+	if err := u.create.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

backend/ent/proxy_delete.go

+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+	"github.com/Wei-Shaw/sub2api/ent/predicate"
+	"github.com/Wei-Shaw/sub2api/ent/proxy"
+)
+
+// ProxyDelete is the builder for deleting a Proxy entity.
+type ProxyDelete struct {
+	config
+	hooks    []Hook
+	mutation *ProxyMutation
+}
+
+// Where appends a list predicates to the ProxyDelete builder.
+func (_d *ProxyDelete) Where(ps ...predicate.Proxy) *ProxyDelete {
+	_d.mutation.Where(ps...)
+	return _d
+}
+
+// Exec executes the deletion query and returns how many vertices were deleted.
+func (_d *ProxyDelete) Exec(ctx context.Context) (int, error) {
+	return withHooks(ctx, _d.sqlExec, _d.mutation, _d.hooks)
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_d *ProxyDelete) ExecX(ctx context.Context) int {
+	n, err := _d.Exec(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return n
+}
+
+func (_d *ProxyDelete) sqlExec(ctx context.Context) (int, error) {
+	_spec := sqlgraph.NewDeleteSpec(proxy.Table, sqlgraph.NewFieldSpec(proxy.FieldID, field.TypeInt64))
+	if ps := _d.mutation.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	affected, err := sqlgraph.DeleteNodes(ctx, _d.driver, _spec)
+	if err != nil && sqlgraph.IsConstraintError(err) {
+		err = &ConstraintError{msg: err.Error(), wrap: err}
+	}
+	_d.mutation.done = true
+	return affected, err
+}
+
+// ProxyDeleteOne is the builder for deleting a single Proxy entity.
+type ProxyDeleteOne struct {
+	_d *ProxyDelete
+}
+
+// Where appends a list predicates to the ProxyDelete builder.
+func (_d *ProxyDeleteOne) Where(ps ...predicate.Proxy) *ProxyDeleteOne {
+	_d._d.mutation.Where(ps...)
+	return _d
+}
+
+// Exec executes the deletion query.
+func (_d *ProxyDeleteOne) Exec(ctx context.Context) error {
+	n, err := _d._d.Exec(ctx)
+	switch {
+	case err != nil:
+		return err
+	case n == 0:
+		return &NotFoundError{proxy.Label}
+	default:
+		return nil
+	}
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_d *ProxyDeleteOne) ExecX(ctx context.Context) {
+	if err := _d.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

backend/ent/proxy_query.go

+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"fmt"
+	"math"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+	"github.com/Wei-Shaw/sub2api/ent/predicate"
+	"github.com/Wei-Shaw/sub2api/ent/proxy"
+)
+
+// ProxyQuery is the builder for querying Proxy entities.
+type ProxyQuery struct {
+	config
+	ctx        *QueryContext
+	order      []proxy.OrderOption
+	inters     []Interceptor
+	predicates []predicate.Proxy
+	// intermediate query (i.e. traversal path).
+	sql  *sql.Selector
+	path func(context.Context) (*sql.Selector, error)
+}
+
+// Where adds a new predicate for the ProxyQuery builder.
+func (_q *ProxyQuery) Where(ps ...predicate.Proxy) *ProxyQuery {
+	_q.predicates = append(_q.predicates, ps...)
+	return _q
+}
+
+// Limit the number of records to be returned by this query.
+func (_q *ProxyQuery) Limit(limit int) *ProxyQuery {
+	_q.ctx.Limit = &limit
+	return _q
+}
+
+// Offset to start from.
+func (_q *ProxyQuery) Offset(offset int) *ProxyQuery {
+	_q.ctx.Offset = &offset
+	return _q
+}
+
+// Unique configures the query builder to filter duplicate records on query.
+// By default, unique is set to true, and can be disabled using this method.
+func (_q *ProxyQuery) Unique(unique bool) *ProxyQuery {
+	_q.ctx.Unique = &unique
+	return _q
+}
+
+// Order specifies how the records should be ordered.
+func (_q *ProxyQuery) Order(o ...proxy.OrderOption) *ProxyQuery {
+	_q.order = append(_q.order, o...)
+	return _q
+}
+
+// First returns the first Proxy entity from the query.
+// Returns a *NotFoundError when no Proxy was found.
+func (_q *ProxyQuery) First(ctx context.Context) (*Proxy, error) {
+	nodes, err := _q.Limit(1).All(setContextOp(ctx, _q.ctx, ent.OpQueryFirst))
+	if err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nil, &NotFoundError{proxy.Label}
+	}
+	return nodes[0], nil
+}
+
+// FirstX is like First, but panics if an error occurs.
+func (_q *ProxyQuery) FirstX(ctx context.Context) *Proxy {
+	node, err := _q.First(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return node
+}
+
+// FirstID returns the first Proxy ID from the query.
+// Returns a *NotFoundError when no Proxy ID was found.
+func (_q *ProxyQuery) FirstID(ctx context.Context) (id int64, err error) {
+	var ids []int64
+	if ids, err = _q.Limit(1).IDs(setContextOp(ctx, _q.ctx, ent.OpQueryFirstID)); err != nil {
+		return
+	}
+	if len(ids) == 0 {
+		err = &NotFoundError{proxy.Label}
+		return
+	}
+	return ids[0], nil
+}
+
+// FirstIDX is like FirstID, but panics if an error occurs.
+func (_q *ProxyQuery) FirstIDX(ctx context.Context) int64 {
+	id, err := _q.FirstID(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return id
+}
+
+// Only returns a single Proxy entity found by the query, ensuring it only returns one.
+// Returns a *NotSingularError when more than one Proxy entity is found.
+// Returns a *NotFoundError when no Proxy entities are found.
+func (_q *ProxyQuery) Only(ctx context.Context) (*Proxy, error) {
+	nodes, err := _q.Limit(2).All(setContextOp(ctx, _q.ctx, ent.OpQueryOnly))
+	if err != nil {
+		return nil, err
+	}
+	switch len(nodes) {
+	case 1:
+		return nodes[0], nil
+	case 0:
+		return nil, &NotFoundError{proxy.Label}
+	default:
+		return nil, &NotSingularError{proxy.Label}
+	}
+}
+
+// OnlyX is like Only, but panics if an error occurs.
+func (_q *ProxyQuery) OnlyX(ctx context.Context) *Proxy {
+	node, err := _q.Only(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// OnlyID is like Only, but returns the only Proxy ID in the query.
+// Returns a *NotSingularError when more than one Proxy ID is found.
+// Returns a *NotFoundError when no entities are found.
+func (_q *ProxyQuery) OnlyID(ctx context.Context) (id int64, err error) {
+	var ids []int64
+	if ids, err = _q.Limit(2).IDs(setContextOp(ctx, _q.ctx, ent.OpQueryOnlyID)); err != nil {
+		return
+	}
+	switch len(ids) {
+	case 1:
+		id = ids[0]
+	case 0:
+		err = &NotFoundError{proxy.Label}
+	default:
+		err = &NotSingularError{proxy.Label}
+	}
+	return
+}
+
+// OnlyIDX is like OnlyID, but panics if an error occurs.
+func (_q *ProxyQuery) OnlyIDX(ctx context.Context) int64 {
+	id, err := _q.OnlyID(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return id
+}
+
+// All executes the query and returns a list of Proxies.
+func (_q *ProxyQuery) All(ctx context.Context) ([]*Proxy, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryAll)
+	if err := _q.prepareQuery(ctx); err != nil {
+		return nil, err
+	}
+	qr := querierAll[[]*Proxy, *ProxyQuery]()
+	return withInterceptors[[]*Proxy](ctx, _q, qr, _q.inters)
+}
+
+// AllX is like All, but panics if an error occurs.
+func (_q *ProxyQuery) AllX(ctx context.Context) []*Proxy {
+	nodes, err := _q.All(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return nodes
+}
+
+// IDs executes the query and returns a list of Proxy IDs.
+func (_q *ProxyQuery) IDs(ctx context.Context) (ids []int64, err error) {
+	if _q.ctx.Unique == nil && _q.path != nil {
+		_q.Unique(true)
+	}
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryIDs)
+	if err = _q.Select(proxy.FieldID).Scan(ctx, &ids); err != nil {
+		return nil, err
+	}
+	return ids, nil
+}
+
+// IDsX is like IDs, but panics if an error occurs.
+func (_q *ProxyQuery) IDsX(ctx context.Context) []int64 {
+	ids, err := _q.IDs(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return ids
+}
+
+// Count returns the count of the given query.
+func (_q *ProxyQuery) Count(ctx context.Context) (int, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryCount)
+	if err := _q.prepareQuery(ctx); err != nil {
+		return 0, err
+	}
+	return withInterceptors[int](ctx, _q, querierCount[*ProxyQuery](), _q.inters)
+}
+
+// CountX is like Count, but panics if an error occurs.
+func (_q *ProxyQuery) CountX(ctx context.Context) int {
+	count, err := _q.Count(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return count
+}
+
+// Exist returns true if the query has elements in the graph.
+func (_q *ProxyQuery) Exist(ctx context.Context) (bool, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryExist)
+	switch _, err := _q.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
+		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
+	}
+}
+
+// ExistX is like Exist, but panics if an error occurs.
+func (_q *ProxyQuery) ExistX(ctx context.Context) bool {
+	exist, err := _q.Exist(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return exist
+}
+
+// Clone returns a duplicate of the ProxyQuery builder, including all associated steps. It can be
+// used to prepare common query builders and use them differently after the clone is made.
+func (_q *ProxyQuery) Clone() *ProxyQuery {
+	if _q == nil {
+		return nil
+	}
+	return &ProxyQuery{
+		config:     _q.config,
+		ctx:        _q.ctx.Clone(),
+		order:      append([]proxy.OrderOption{}, _q.order...),
+		inters:     append([]Interceptor{}, _q.inters...),
+		predicates: append([]predicate.Proxy{}, _q.predicates...),
+		// clone intermediate query.
+		sql:  _q.sql.Clone(),
+		path: _q.path,
+	}
+}
+
+// GroupBy is used to group vertices by one or more fields/columns.
+// It is often used with aggregate functions, like: count, max, mean, min, sum.
+//
+// Example:
+//
+//	var v []struct {
+//		CreatedAt time.Time `json:"created_at,omitempty"`
+//		Count int `json:"count,omitempty"`
+//	}
+//
+//	client.Proxy.Query().
+//		GroupBy(proxy.FieldCreatedAt).
+//		Aggregate(ent.Count()).
+//		Scan(ctx, &v)
+func (_q *ProxyQuery) GroupBy(field string, fields ...string) *ProxyGroupBy {
+	_q.ctx.Fields = append([]string{field}, fields...)
+	grbuild := &ProxyGroupBy{build: _q}
+	grbuild.flds = &_q.ctx.Fields
+	grbuild.label = proxy.Label
+	grbuild.scan = grbuild.Scan
+	return grbuild
+}
+
+// Select allows the selection one or more fields/columns for the given query,
+// instead of selecting all fields in the entity.
+//
+// Example:
+//
+//	var v []struct {
+//		CreatedAt time.Time `json:"created_at,omitempty"`
+//	}
+//
+//	client.Proxy.Query().
+//		Select(proxy.FieldCreatedAt).
+//		Scan(ctx, &v)
+func (_q *ProxyQuery) Select(fields ...string) *ProxySelect {
+	_q.ctx.Fields = append(_q.ctx.Fields, fields...)
+	sbuild := &ProxySelect{ProxyQuery: _q}
+	sbuild.label = proxy.Label
+	sbuild.flds, sbuild.scan = &_q.ctx.Fields, sbuild.Scan
+	return sbuild
+}
+
+// Aggregate returns a ProxySelect configured with the given aggregations.
+func (_q *ProxyQuery) Aggregate(fns ...AggregateFunc) *ProxySelect {
+	return _q.Select().Aggregate(fns...)
+}
+
+func (_q *ProxyQuery) prepareQuery(ctx context.Context) error {
+	for _, inter := range _q.inters {
+		if inter == nil {
+			return fmt.Errorf("ent: uninitialized interceptor (forgotten import ent/runtime?)")
+		}
+		if trv, ok := inter.(Traverser); ok {
+			if err := trv.Traverse(ctx, _q); err != nil {
+				return err
+			}
+		}
+	}
+	for _, f := range _q.ctx.Fields {
+		if !proxy.ValidColumn(f) {
+			return &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+		}
+	}
+	if _q.path != nil {
+		prev, err := _q.path(ctx)
+		if err != nil {
+			return err
+		}
+		_q.sql = prev
+	}
+	return nil
+}
+
+func (_q *ProxyQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*Proxy, error) {
+	var (
+		nodes = []*Proxy{}
+		_spec = _q.querySpec()
+	)
+	_spec.ScanValues = func(columns []string) ([]any, error) {
+		return (*Proxy).scanValues(nil, columns)
+	}
+	_spec.Assign = func(columns []string, values []any) error {
+		node := &Proxy{config: _q.config}
+		nodes = append(nodes, node)
+		return node.assignValues(columns, values)
+	}
+	for i := range hooks {
+		hooks[i](ctx, _spec)
+	}
+	if err := sqlgraph.QueryNodes(ctx, _q.driver, _spec); err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nodes, nil
+	}
+	return nodes, nil
+}
+
+func (_q *ProxyQuery) sqlCount(ctx context.Context) (int, error) {
+	_spec := _q.querySpec()
+	_spec.Node.Columns = _q.ctx.Fields
+	if len(_q.ctx.Fields) > 0 {
+		_spec.Unique = _q.ctx.Unique != nil && *_q.ctx.Unique
+	}
+	return sqlgraph.CountNodes(ctx, _q.driver, _spec)
+}
+
+func (_q *ProxyQuery) querySpec() *sqlgraph.QuerySpec {
+	_spec := sqlgraph.NewQuerySpec(proxy.Table, proxy.Columns, sqlgraph.NewFieldSpec(proxy.FieldID, field.TypeInt64))
+	_spec.From = _q.sql
+	if unique := _q.ctx.Unique; unique != nil {
+		_spec.Unique = *unique
+	} else if _q.path != nil {
+		_spec.Unique = true
+	}
+	if fields := _q.ctx.Fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, proxy.FieldID)
+		for i := range fields {
+			if fields[i] != proxy.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, fields[i])
+			}
+		}
+	}
+	if ps := _q.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if limit := _q.ctx.Limit; limit != nil {
+		_spec.Limit = *limit
+	}
+	if offset := _q.ctx.Offset; offset != nil {
+		_spec.Offset = *offset
+	}
+	if ps := _q.order; len(ps) > 0 {
+		_spec.Order = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	return _spec
+}
+
+func (_q *ProxyQuery) sqlQuery(ctx context.Context) *sql.Selector {
+	builder := sql.Dialect(_q.driver.Dialect())
+	t1 := builder.Table(proxy.Table)
+	columns := _q.ctx.Fields
+	if len(columns) == 0 {
+		columns = proxy.Columns
+	}
+	selector := builder.Select(t1.Columns(columns...)...).From(t1)
+	if _q.sql != nil {
+		selector = _q.sql
+		selector.Select(selector.Columns(columns...)...)
+	}
+	if _q.ctx.Unique != nil && *_q.ctx.Unique {
+		selector.Distinct()
+	}
+	for _, p := range _q.predicates {
+		p(selector)
+	}
+	for _, p := range _q.order {
+		p(selector)
+	}
+	if offset := _q.ctx.Offset; offset != nil {
+		// limit is mandatory for offset clause. We start
+		// with default value, and override it below if needed.
+		selector.Offset(*offset).Limit(math.MaxInt32)
+	}
+	if limit := _q.ctx.Limit; limit != nil {
+		selector.Limit(*limit)
+	}
+	return selector
+}
+
+// ProxyGroupBy is the group-by builder for Proxy entities.
+type ProxyGroupBy struct {
+	selector
+	build *ProxyQuery
+}
+
+// Aggregate adds the given aggregation functions to the group-by query.
+func (_g *ProxyGroupBy) Aggregate(fns ...AggregateFunc) *ProxyGroupBy {
+	_g.fns = append(_g.fns, fns...)
+	return _g
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (_g *ProxyGroupBy) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, _g.build.ctx, ent.OpQueryGroupBy)
+	if err := _g.build.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*ProxyQuery, *ProxyGroupBy](ctx, _g.build, _g, _g.build.inters, v)
+}
+
+func (_g *ProxyGroupBy) sqlScan(ctx context.Context, root *ProxyQuery, v any) error {
+	selector := root.sqlQuery(ctx).Select()
+	aggregation := make([]string, 0, len(_g.fns))
+	for _, fn := range _g.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	if len(selector.SelectedColumns()) == 0 {
+		columns := make([]string, 0, len(*_g.flds)+len(_g.fns))
+		for _, f := range *_g.flds {
+			columns = append(columns, selector.C(f))
+		}
+		columns = append(columns, aggregation...)
+		selector.Select(columns...)
+	}
+	selector.GroupBy(selector.Columns(*_g.flds...)...)
+	if err := selector.Err(); err != nil {
+		return err
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := _g.build.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}
+
+// ProxySelect is the builder for selecting fields of Proxy entities.
+type ProxySelect struct {
+	*ProxyQuery
+	selector
+}
+
+// Aggregate adds the given aggregation functions to the selector query.
+func (_s *ProxySelect) Aggregate(fns ...AggregateFunc) *ProxySelect {
+	_s.fns = append(_s.fns, fns...)
+	return _s
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (_s *ProxySelect) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, _s.ctx, ent.OpQuerySelect)
+	if err := _s.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*ProxyQuery, *ProxySelect](ctx, _s.ProxyQuery, _s, _s.inters, v)
+}
+
+func (_s *ProxySelect) sqlScan(ctx context.Context, root *ProxyQuery, v any) error {
+	selector := root.sqlQuery(ctx)
+	aggregation := make([]string, 0, len(_s.fns))
+	for _, fn := range _s.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	switch n := len(*_s.selector.flds); {
+	case n == 0 && len(aggregation) > 0:
+		selector.Select(aggregation...)
+	case n != 0 && len(aggregation) > 0:
+		selector.AppendSelect(aggregation...)
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := _s.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}

backend/ent/proxy_update.go

+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+	"github.com/Wei-Shaw/sub2api/ent/predicate"
+	"github.com/Wei-Shaw/sub2api/ent/proxy"
+)
+
+// ProxyUpdate is the builder for updating Proxy entities.
+type ProxyUpdate struct {
+	config
+	hooks    []Hook
+	mutation *ProxyMutation
+}
+
+// Where appends a list predicates to the ProxyUpdate builder.
+func (_u *ProxyUpdate) Where(ps ...predicate.Proxy) *ProxyUpdate {
+	_u.mutation.Where(ps...)
+	return _u
+}
+
+// SetUpdatedAt sets the "updated_at" field.
+func (_u *ProxyUpdate) SetUpdatedAt(v time.Time) *ProxyUpdate {
+	_u.mutation.SetUpdatedAt(v)
+	return _u
+}
+
+// SetDeletedAt sets the "deleted_at" field.
+func (_u *ProxyUpdate) SetDeletedAt(v time.Time) *ProxyUpdate {
+	_u.mutation.SetDeletedAt(v)
+	return _u
+}
+
+// SetNillableDeletedAt sets the "deleted_at" field if the given value is not nil.
+func (_u *ProxyUpdate) SetNillableDeletedAt(v *time.Time) *ProxyUpdate {
+	if v != nil {
+		_u.SetDeletedAt(*v)
+	}
+	return _u
+}
+
+// ClearDeletedAt clears the value of the "deleted_at" field.
+func (_u *ProxyUpdate) ClearDeletedAt() *ProxyUpdate {
+	_u.mutation.ClearDeletedAt()
+	return _u
+}
+
+// SetName sets the "name" field.
+func (_u *ProxyUpdate) SetName(v string) *ProxyUpdate {
+	_u.mutation.SetName(v)
+	return _u
+}
+
+// SetNillableName sets the "name" field if the given value is not nil.
+func (_u *ProxyUpdate) SetNillableName(v *string) *ProxyUpdate {
+	if v != nil {
+		_u.SetName(*v)
+	}
+	return _u
+}
+
+// SetProtocol sets the "protocol" field.
+func (_u *ProxyUpdate) SetProtocol(v string) *ProxyUpdate {
+	_u.mutation.SetProtocol(v)
+	return _u
+}
+
+// SetNillableProtocol sets the "protocol" field if the given value is not nil.
+func (_u *ProxyUpdate) SetNillableProtocol(v *string) *ProxyUpdate {
+	if v != nil {
+		_u.SetProtocol(*v)
+	}
+	return _u
+}
+
+// SetHost sets the "host" field.
+func (_u *ProxyUpdate) SetHost(v string) *ProxyUpdate {
+	_u.mutation.SetHost(v)
+	return _u
+}
+
+// SetNillableHost sets the "host" field if the given value is not nil.
+func (_u *ProxyUpdate) SetNillableHost(v *string) *ProxyUpdate {
+	if v != nil {
+		_u.SetHost(*v)
+	}
+	return _u
+}
+
+// SetPort sets the "port" field.
+func (_u *ProxyUpdate) SetPort(v int) *ProxyUpdate {
+	_u.mutation.ResetPort()
+	_u.mutation.SetPort(v)
+	return _u
+}
+
+// SetNillablePort sets the "port" field if the given value is not nil.
+func (_u *ProxyUpdate) SetNillablePort(v *int) *ProxyUpdate {
+	if v != nil {
+		_u.SetPort(*v)
+	}
+	return _u
+}
+
+// AddPort adds value to the "port" field.
+func (_u *ProxyUpdate) AddPort(v int) *ProxyUpdate {
+	_u.mutation.AddPort(v)
+	return _u
+}
+
+// SetUsername sets the "username" field.
+func (_u *ProxyUpdate) SetUsername(v string) *ProxyUpdate {
+	_u.mutation.SetUsername(v)
+	return _u
+}
+
+// SetNillableUsername sets the "username" field if the given value is not nil.
+func (_u *ProxyUpdate) SetNillableUsername(v *string) *ProxyUpdate {
+	if v != nil {
+		_u.SetUsername(*v)
+	}
+	return _u
+}
+
+// ClearUsername clears the value of the "username" field.
+func (_u *ProxyUpdate) ClearUsername() *ProxyUpdate {
+	_u.mutation.ClearUsername()
+	return _u
+}
+
+// SetPassword sets the "password" field.
+func (_u *ProxyUpdate) SetPassword(v string) *ProxyUpdate {
+	_u.mutation.SetPassword(v)
+	return _u
+}
+
+// SetNillablePassword sets the "password" field if the given value is not nil.
+func (_u *ProxyUpdate) SetNillablePassword(v *string) *ProxyUpdate {
+	if v != nil {
+		_u.SetPassword(*v)
+	}
+	return _u
+}
+
+// ClearPassword clears the value of the "password" field.
+func (_u *ProxyUpdate) ClearPassword() *ProxyUpdate {
+	_u.mutation.ClearPassword()
+	return _u
+}
+
+// SetStatus sets the "status" field.
+func (_u *ProxyUpdate) SetStatus(v string) *ProxyUpdate {
+	_u.mutation.SetStatus(v)
+	return _u
+}
+
+// SetNillableStatus sets the "status" field if the given value is not nil.
+func (_u *ProxyUpdate) SetNillableStatus(v *string) *ProxyUpdate {
+	if v != nil {
+		_u.SetStatus(*v)
+	}
+	return _u
+}
+
+// Mutation returns the ProxyMutation object of the builder.
+func (_u *ProxyUpdate) Mutation() *ProxyMutation {
+	return _u.mutation
+}
+
+// Save executes the query and returns the number of nodes affected by the update operation.
+func (_u *ProxyUpdate) Save(ctx context.Context) (int, error) {
+	if err := _u.defaults(); err != nil {
+		return 0, err
+	}
+	return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_u *ProxyUpdate) SaveX(ctx context.Context) int {
+	affected, err := _u.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return affected
+}
+
+// Exec executes the query.
+func (_u *ProxyUpdate) Exec(ctx context.Context) error {
+	_, err := _u.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_u *ProxyUpdate) ExecX(ctx context.Context) {
+	if err := _u.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// defaults sets the default values of the builder before save.
+func (_u *ProxyUpdate) defaults() error {
+	if _, ok := _u.mutation.UpdatedAt(); !ok {
+		if proxy.UpdateDefaultUpdatedAt == nil {
+			return fmt.Errorf("ent: uninitialized proxy.UpdateDefaultUpdatedAt (forgotten import ent/runtime?)")
+		}
+		v := proxy.UpdateDefaultUpdatedAt()
+		_u.mutation.SetUpdatedAt(v)
+	}
+	return nil
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (_u *ProxyUpdate) check() error {
+	if v, ok := _u.mutation.Name(); ok {
+		if err := proxy.NameValidator(v); err != nil {
+			return &ValidationError{Name: "name", err: fmt.Errorf(`ent: validator failed for field "Proxy.name": %w`, err)}
+		}
+	}
+	if v, ok := _u.mutation.Protocol(); ok {
+		if err := proxy.ProtocolValidator(v); err != nil {
+			return &ValidationError{Name: "protocol", err: fmt.Errorf(`ent: validator failed for field "Proxy.protocol": %w`, err)}
+		}
+	}
+	if v, ok := _u.mutation.Host(); ok {
+		if err := proxy.HostValidator(v); err != nil {
+			return &ValidationError{Name: "host", err: fmt.Errorf(`ent: validator failed for field "Proxy.host": %w`, err)}
+		}
+	}
+	if v, ok := _u.mutation.Username(); ok {
+		if err := proxy.UsernameValidator(v); err != nil {
+			return &ValidationError{Name: "username", err: fmt.Errorf(`ent: validator failed for field "Proxy.username": %w`, err)}
+		}
+	}
+	if v, ok := _u.mutation.Password(); ok {
+		if err := proxy.PasswordValidator(v); err != nil {
+			return &ValidationError{Name: "password", err: fmt.Errorf(`ent: validator failed for field "Proxy.password": %w`, err)}
+		}
+	}
+	if v, ok := _u.mutation.Status(); ok {
+		if err := proxy.StatusValidator(v); err != nil {
+			return &ValidationError{Name: "status", err: fmt.Errorf(`ent: validator failed for field "Proxy.status": %w`, err)}
+		}
+	}
+	return nil
+}
+
+func (_u *ProxyUpdate) sqlSave(ctx context.Context) (_node int, err error) {
+	if err := _u.check(); err != nil {
+		return _node, err
+	}
+	_spec := sqlgraph.NewUpdateSpec(proxy.Table, proxy.Columns, sqlgraph.NewFieldSpec(proxy.FieldID, field.TypeInt64))
+	if ps := _u.mutation.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := _u.mutation.UpdatedAt(); ok {
+		_spec.SetField(proxy.FieldUpdatedAt, field.TypeTime, value)
+	}
+	if value, ok := _u.mutation.DeletedAt(); ok {
+		_spec.SetField(proxy.FieldDeletedAt, field.TypeTime, value)
+	}
+	if _u.mutation.DeletedAtCleared() {
+		_spec.ClearField(proxy.FieldDeletedAt, field.TypeTime)
+	}
+	if value, ok := _u.mutation.Name(); ok {
+		_spec.SetField(proxy.FieldName, field.TypeString, value)
+	}
+	if value, ok := _u.mutation.Protocol(); ok {
+		_spec.SetField(proxy.FieldProtocol, field.TypeString, value)
+	}
+	if value, ok := _u.mutation.Host(); ok {
+		_spec.SetField(proxy.FieldHost, field.TypeString, value)
+	}
+	if value, ok := _u.mutation.Port(); ok {
+		_spec.SetField(proxy.FieldPort, field.TypeInt, value)
+	}
+	if value, ok := _u.mutation.AddedPort(); ok {
+		_spec.AddField(proxy.FieldPort, field.TypeInt, value)
+	}
+	if value, ok := _u.mutation.Username(); ok {
+		_spec.SetField(proxy.FieldUsername, field.TypeString, value)
+	}
+	if _u.mutation.UsernameCleared() {
+		_spec.ClearField(proxy.FieldUsername, field.TypeString)
+	}
+	if value, ok := _u.mutation.Password(); ok {
+		_spec.SetField(proxy.FieldPassword, field.TypeString, value)
+	}
+	if _u.mutation.PasswordCleared() {
+		_spec.ClearField(proxy.FieldPassword, field.TypeString)
+	}
+	if value, ok := _u.mutation.Status(); ok {
+		_spec.SetField(proxy.FieldStatus, field.TypeString, value)
+	}
+	if _node, err = sqlgraph.UpdateNodes(ctx, _u.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{proxy.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return 0, err
+	}
+	_u.mutation.done = true
+	return _node, nil
+}
+
+// ProxyUpdateOne is the builder for updating a single Proxy entity.
+type ProxyUpdateOne struct {
+	config
+	fields   []string
+	hooks    []Hook
+	mutation *ProxyMutation
+}
+
+// SetUpdatedAt sets the "updated_at" field.
+func (_u *ProxyUpdateOne) SetUpdatedAt(v time.Time) *ProxyUpdateOne {
+	_u.mutation.SetUpdatedAt(v)
+	return _u
+}
+
+// SetDeletedAt sets the "deleted_at" field.
+func (_u *ProxyUpdateOne) SetDeletedAt(v time.Time) *ProxyUpdateOne {
+	_u.mutation.SetDeletedAt(v)
+	return _u
+}
+
+// SetNillableDeletedAt sets the "deleted_at" field if the given value is not nil.
+func (_u *ProxyUpdateOne) SetNillableDeletedAt(v *time.Time) *ProxyUpdateOne {
+	if v != nil {
+		_u.SetDeletedAt(*v)
+	}
+	return _u
+}
+
+// ClearDeletedAt clears the value of the "deleted_at" field.
+func (_u *ProxyUpdateOne) ClearDeletedAt() *ProxyUpdateOne {
+	_u.mutation.ClearDeletedAt()
+	return _u
+}
+
+// SetName sets the "name" field.
+func (_u *ProxyUpdateOne) SetName(v string) *ProxyUpdateOne {
+	_u.mutation.SetName(v)
+	return _u
+}
+
+// SetNillableName sets the "name" field if the given value is not nil.
+func (_u *ProxyUpdateOne) SetNillableName(v *string) *ProxyUpdateOne {
+	if v != nil {
+		_u.SetName(*v)
+	}
+	return _u
+}
+
+// SetProtocol sets the "protocol" field.
+func (_u *ProxyUpdateOne) SetProtocol(v string) *ProxyUpdateOne {
+	_u.mutation.SetProtocol(v)
+	return _u
+}
+
+// SetNillableProtocol sets the "protocol" field if the given value is not nil.
+func (_u *ProxyUpdateOne) SetNillableProtocol(v *string) *ProxyUpdateOne {
+	if v != nil {
+		_u.SetProtocol(*v)
+	}
+	return _u
+}
+
+// SetHost sets the "host" field.
+func (_u *ProxyUpdateOne) SetHost(v string) *ProxyUpdateOne {
+	_u.mutation.SetHost(v)
+	return _u
+}
+
+// SetNillableHost sets the "host" field if the given value is not nil.
+func (_u *ProxyUpdateOne) SetNillableHost(v *string) *ProxyUpdateOne {
+	if v != nil {
+		_u.SetHost(*v)
+	}
+	return _u
+}
+
+// SetPort sets the "port" field.
+func (_u *ProxyUpdateOne) SetPort(v int) *ProxyUpdateOne {
+	_u.mutation.ResetPort()
+	_u.mutation.SetPort(v)
+	return _u
+}
+
+// SetNillablePort sets the "port" field if the given value is not nil.
+func (_u *ProxyUpdateOne) SetNillablePort(v *int) *ProxyUpdateOne {
+	if v != nil {
+		_u.SetPort(*v)
+	}
+	return _u
+}
+
+// AddPort adds value to the "port" field.
+func (_u *ProxyUpdateOne) AddPort(v int) *ProxyUpdateOne {
+	_u.mutation.AddPort(v)
+	return _u
+}
+
+// SetUsername sets the "username" field.
+func (_u *ProxyUpdateOne) SetUsername(v string) *ProxyUpdateOne {
+	_u.mutation.SetUsername(v)
+	return _u
+}
+
+// SetNillableUsername sets the "username" field if the given value is not nil.
+func (_u *ProxyUpdateOne) SetNillableUsername(v *string) *ProxyUpdateOne {
+	if v != nil {
+		_u.SetUsername(*v)
+	}
+	return _u
+}
+
+// ClearUsername clears the value of the "username" field.
+func (_u *ProxyUpdateOne) ClearUsername() *ProxyUpdateOne {
+	_u.mutation.ClearUsername()
+	return _u
+}
+
+// SetPassword sets the "password" field.
+func (_u *ProxyUpdateOne) SetPassword(v string) *ProxyUpdateOne {
+	_u.mutation.SetPassword(v)
+	return _u
+}
+
+// SetNillablePassword sets the "password" field if the given value is not nil.
+func (_u *ProxyUpdateOne) SetNillablePassword(v *string) *ProxyUpdateOne {
+	if v != nil {
+		_u.SetPassword(*v)
+	}
+	return _u
+}
+
+// ClearPassword clears the value of the "password" field.
+func (_u *ProxyUpdateOne) ClearPassword() *ProxyUpdateOne {
+	_u.mutation.ClearPassword()
+	return _u
+}
+
+// SetStatus sets the "status" field.
+func (_u *ProxyUpdateOne) SetStatus(v string) *ProxyUpdateOne {
+	_u.mutation.SetStatus(v)
+	return _u
+}
+
+// SetNillableStatus sets the "status" field if the given value is not nil.
+func (_u *ProxyUpdateOne) SetNillableStatus(v *string) *ProxyUpdateOne {
+	if v != nil {
+		_u.SetStatus(*v)
+	}
+	return _u
+}
+
+// Mutation returns the ProxyMutation object of the builder.
+func (_u *ProxyUpdateOne) Mutation() *ProxyMutation {
+	return _u.mutation
+}
+
+// Where appends a list predicates to the ProxyUpdate builder.
+func (_u *ProxyUpdateOne) Where(ps ...predicate.Proxy) *ProxyUpdateOne {
+	_u.mutation.Where(ps...)
+	return _u
+}
+
+// Select allows selecting one or more fields (columns) of the returned entity.
+// The default is selecting all fields defined in the entity schema.
+func (_u *ProxyUpdateOne) Select(field string, fields ...string) *ProxyUpdateOne {
+	_u.fields = append([]string{field}, fields...)
+	return _u
+}
+
+// Save executes the query and returns the updated Proxy entity.
+func (_u *ProxyUpdateOne) Save(ctx context.Context) (*Proxy, error) {
+	if err := _u.defaults(); err != nil {
+		return nil, err
+	}
+	return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_u *ProxyUpdateOne) SaveX(ctx context.Context) *Proxy {
+	node, err := _u.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// Exec executes the query on the entity.
+func (_u *ProxyUpdateOne) Exec(ctx context.Context) error {
+	_, err := _u.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_u *ProxyUpdateOne) ExecX(ctx context.Context) {
+	if err := _u.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// defaults sets the default values of the builder before save.
+func (_u *ProxyUpdateOne) defaults() error {
+	if _, ok := _u.mutation.UpdatedAt(); !ok {
+		if proxy.UpdateDefaultUpdatedAt == nil {
+			return fmt.Errorf("ent: uninitialized proxy.UpdateDefaultUpdatedAt (forgotten import ent/runtime?)")
+		}
+		v := proxy.UpdateDefaultUpdatedAt()
+		_u.mutation.SetUpdatedAt(v)
+	}
+	return nil
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (_u *ProxyUpdateOne) check() error {
+	if v, ok := _u.mutation.Name(); ok {
+		if err := proxy.NameValidator(v); err != nil {
+			return &ValidationError{Name: "name", err: fmt.Errorf(`ent: validator failed for field "Proxy.name": %w`, err)}
+		}
+	}
+	if v, ok := _u.mutation.Protocol(); ok {
+		if err := proxy.ProtocolValidator(v); err != nil {
+			return &ValidationError{Name: "protocol", err: fmt.Errorf(`ent: validator failed for field "Proxy.protocol": %w`, err)}
+		}
+	}
+	if v, ok := _u.mutation.Host(); ok {
+		if err := proxy.HostValidator(v); err != nil {
+			return &ValidationError{Name: "host", err: fmt.Errorf(`ent: validator failed for field "Proxy.host": %w`, err)}
+		}
+	}
+	if v, ok := _u.mutation.Username(); ok {
+		if err := proxy.UsernameValidator(v); err != nil {
+			return &ValidationError{Name: "username", err: fmt.Errorf(`ent: validator failed for field "Proxy.username": %w`, err)}
+		}
+	}
+	if v, ok := _u.mutation.Password(); ok {
+		if err := proxy.PasswordValidator(v); err != nil {
+			return &ValidationError{Name: "password", err: fmt.Errorf(`ent: validator failed for field "Proxy.password": %w`, err)}
+		}
+	}
+	if v, ok := _u.mutation.Status(); ok {
+		if err := proxy.StatusValidator(v); err != nil {
+			return &ValidationError{Name: "status", err: fmt.Errorf(`ent: validator failed for field "Proxy.status": %w`, err)}
+		}
+	}
+	return nil
+}
+
+func (_u *ProxyUpdateOne) sqlSave(ctx context.Context) (_node *Proxy, err error) {
+	if err := _u.check(); err != nil {
+		return _node, err
+	}
+	_spec := sqlgraph.NewUpdateSpec(proxy.Table, proxy.Columns, sqlgraph.NewFieldSpec(proxy.FieldID, field.TypeInt64))
+	id, ok := _u.mutation.ID()
+	if !ok {
+		return nil, &ValidationError{Name: "id", err: errors.New(`ent: missing "Proxy.id" for update`)}
+	}
+	_spec.Node.ID.Value = id
+	if fields := _u.fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, proxy.FieldID)
+		for _, f := range fields {
+			if !proxy.ValidColumn(f) {
+				return nil, &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+			}
+			if f != proxy.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, f)
+			}
+		}
+	}
+	if ps := _u.mutation.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := _u.mutation.UpdatedAt(); ok {
+		_spec.SetField(proxy.FieldUpdatedAt, field.TypeTime, value)
+	}
+	if value, ok := _u.mutation.DeletedAt(); ok {
+		_spec.SetField(proxy.FieldDeletedAt, field.TypeTime, value)
+	}
+	if _u.mutation.DeletedAtCleared() {
+		_spec.ClearField(proxy.FieldDeletedAt, field.TypeTime)
+	}
+	if value, ok := _u.mutation.Name(); ok {
+		_spec.SetField(proxy.FieldName, field.TypeString, value)
+	}
+	if value, ok := _u.mutation.Protocol(); ok {
+		_spec.SetField(proxy.FieldProtocol, field.TypeString, value)
+	}
+	if value, ok := _u.mutation.Host(); ok {
+		_spec.SetField(proxy.FieldHost, field.TypeString, value)
+	}
+	if value, ok := _u.mutation.Port(); ok {
+		_spec.SetField(proxy.FieldPort, field.TypeInt, value)
+	}
+	if value, ok := _u.mutation.AddedPort(); ok {
+		_spec.AddField(proxy.FieldPort, field.TypeInt, value)
+	}
+	if value, ok := _u.mutation.Username(); ok {
+		_spec.SetField(proxy.FieldUsername, field.TypeString, value)
+	}
+	if _u.mutation.UsernameCleared() {
+		_spec.ClearField(proxy.FieldUsername, field.TypeString)
+	}
+	if value, ok := _u.mutation.Password(); ok {
+		_spec.SetField(proxy.FieldPassword, field.TypeString, value)
+	}
+	if _u.mutation.PasswordCleared() {
+		_spec.ClearField(proxy.FieldPassword, field.TypeString)
+	}
+	if value, ok := _u.mutation.Status(); ok {
+		_spec.SetField(proxy.FieldStatus, field.TypeString, value)
+	}
+	_node = &Proxy{config: _u.config}
+	_spec.Assign = _node.assignValues
+	_spec.ScanValues = _node.scanValues
+	if err = sqlgraph.UpdateNode(ctx, _u.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{proxy.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	_u.mutation.done = true
+	return _node, nil
+}

backend/ent/redeemcode.go

+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"github.com/Wei-Shaw/sub2api/ent/group"
+	"github.com/Wei-Shaw/sub2api/ent/redeemcode"
+	"github.com/Wei-Shaw/sub2api/ent/user"
+)
+
+// RedeemCode is the model entity for the RedeemCode schema.
+type RedeemCode struct {
+	config `json:"-"`
+	// ID of the ent.
+	ID int64 `json:"id,omitempty"`
+	// Code holds the value of the "code" field.
+	Code string `json:"code,omitempty"`
+	// Type holds the value of the "type" field.
+	Type string `json:"type,omitempty"`
+	// Value holds the value of the "value" field.
+	Value float64 `json:"value,omitempty"`
+	// Status holds the value of the "status" field.
+	Status string `json:"status,omitempty"`
+	// UsedBy holds the value of the "used_by" field.
+	UsedBy *int64 `json:"used_by,omitempty"`
+	// UsedAt holds the value of the "used_at" field.
+	UsedAt *time.Time `json:"used_at,omitempty"`
+	// Notes holds the value of the "notes" field.
+	Notes *string `json:"notes,omitempty"`
+	// CreatedAt holds the value of the "created_at" field.
+	CreatedAt time.Time `json:"created_at,omitempty"`
+	// GroupID holds the value of the "group_id" field.
+	GroupID *int64 `json:"group_id,omitempty"`
+	// ValidityDays holds the value of the "validity_days" field.
+	ValidityDays int `json:"validity_days,omitempty"`
+	// Edges holds the relations/edges for other nodes in the graph.
+	// The values are being populated by the RedeemCodeQuery when eager-loading is set.
+	Edges        RedeemCodeEdges `json:"edges"`
+	selectValues sql.SelectValues
+}
+
+// RedeemCodeEdges holds the relations/edges for other nodes in the graph.
+type RedeemCodeEdges struct {
+	// User holds the value of the user edge.
+	User *User `json:"user,omitempty"`
+	// Group holds the value of the group edge.
+	Group *Group `json:"group,omitempty"`
+	// loadedTypes holds the information for reporting if a
+	// type was loaded (or requested) in eager-loading or not.
+	loadedTypes [2]bool
+}
+
+// UserOrErr returns the User value or an error if the edge
+// was not loaded in eager-loading, or loaded but was not found.
+func (e RedeemCodeEdges) UserOrErr() (*User, error) {
+	if e.User != nil {
+		return e.User, nil
+	} else if e.loadedTypes[0] {
+		return nil, &NotFoundError{label: user.Label}
+	}
+	return nil, &NotLoadedError{edge: "user"}
+}
+
+// GroupOrErr returns the Group value or an error if the edge
+// was not loaded in eager-loading, or loaded but was not found.
+func (e RedeemCodeEdges) GroupOrErr() (*Group, error) {
+	if e.Group != nil {
+		return e.Group, nil
+	} else if e.loadedTypes[1] {
+		return nil, &NotFoundError{label: group.Label}
+	}
+	return nil, &NotLoadedError{edge: "group"}
+}
+
+// scanValues returns the types for scanning values from sql.Rows.
+func (*RedeemCode) scanValues(columns []string) ([]any, error) {
+	values := make([]any, len(columns))
+	for i := range columns {
+		switch columns[i] {
+		case redeemcode.FieldValue:
+			values[i] = new(sql.NullFloat64)
+		case redeemcode.FieldID, redeemcode.FieldUsedBy, redeemcode.FieldGroupID, redeemcode.FieldValidityDays:
+			values[i] = new(sql.NullInt64)
+		case redeemcode.FieldCode, redeemcode.FieldType, redeemcode.FieldStatus, redeemcode.FieldNotes:
+			values[i] = new(sql.NullString)
+		case redeemcode.FieldUsedAt, redeemcode.FieldCreatedAt:
+			values[i] = new(sql.NullTime)
+		default:
+			values[i] = new(sql.UnknownType)
+		}
+	}
+	return values, nil
+}
+
+// assignValues assigns the values that were returned from sql.Rows (after scanning)
+// to the RedeemCode fields.
+func (_m *RedeemCode) assignValues(columns []string, values []any) error {
+	if m, n := len(values), len(columns); m < n {
+		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
+	}
+	for i := range columns {
+		switch columns[i] {
+		case redeemcode.FieldID:
+			value, ok := values[i].(*sql.NullInt64)
+			if !ok {
+				return fmt.Errorf("unexpected type %T for field id", value)
+			}
+			_m.ID = int64(value.Int64)
+		case redeemcode.FieldCode:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field code", values[i])
+			} else if value.Valid {
+				_m.Code = value.String
+			}
+		case redeemcode.FieldType:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field type", values[i])
+			} else if value.Valid {
+				_m.Type = value.String
+			}
+		case redeemcode.FieldValue:
+			if value, ok := values[i].(*sql.NullFloat64); !ok {
+				return fmt.Errorf("unexpected type %T for field value", values[i])
+			} else if value.Valid {
+				_m.Value = value.Float64
+			}
+		case redeemcode.FieldStatus:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field status", values[i])
+			} else if value.Valid {
+				_m.Status = value.String
+			}
+		case redeemcode.FieldUsedBy:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field used_by", values[i])
+			} else if value.Valid {
+				_m.UsedBy = new(int64)
+				*_m.UsedBy = value.Int64
+			}
+		case redeemcode.FieldUsedAt:
+			if value, ok := values[i].(*sql.NullTime); !ok {
+				return fmt.Errorf("unexpected type %T for field used_at", values[i])
+			} else if value.Valid {
+				_m.UsedAt = new(time.Time)
+				*_m.UsedAt = value.Time
+			}
+		case redeemcode.FieldNotes:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field notes", values[i])
+			} else if value.Valid {
+				_m.Notes = new(string)
+				*_m.Notes = value.String
+			}
+		case redeemcode.FieldCreatedAt:
+			if value, ok := values[i].(*sql.NullTime); !ok {
+				return fmt.Errorf("unexpected type %T for field created_at", values[i])
+			} else if value.Valid {
+				_m.CreatedAt = value.Time
+			}
+		case redeemcode.FieldGroupID:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field group_id", values[i])
+			} else if value.Valid {
+				_m.GroupID = new(int64)
+				*_m.GroupID = value.Int64
+			}
+		case redeemcode.FieldValidityDays:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field validity_days", values[i])
+			} else if value.Valid {
+				_m.ValidityDays = int(value.Int64)
+			}
+		default:
+			_m.selectValues.Set(columns[i], values[i])
+		}
+	}
+	return nil
+}
+
+// GetValue returns the ent.Value that was dynamically selected and assigned to the RedeemCode.
+// This includes values selected through modifiers, order, etc.
+func (_m *RedeemCode) GetValue(name string) (ent.Value, error) {
+	return _m.selectValues.Get(name)
+}
+
+// QueryUser queries the "user" edge of the RedeemCode entity.
+func (_m *RedeemCode) QueryUser() *UserQuery {
+	return NewRedeemCodeClient(_m.config).QueryUser(_m)
+}
+
+// QueryGroup queries the "group" edge of the RedeemCode entity.
+func (_m *RedeemCode) QueryGroup() *GroupQuery {
+	return NewRedeemCodeClient(_m.config).QueryGroup(_m)
+}
+
+// Update returns a builder for updating this RedeemCode.
+// Note that you need to call RedeemCode.Unwrap() before calling this method if this RedeemCode
+// was returned from a transaction, and the transaction was committed or rolled back.
+func (_m *RedeemCode) Update() *RedeemCodeUpdateOne {
+	return NewRedeemCodeClient(_m.config).UpdateOne(_m)
+}
+
+// Unwrap unwraps the RedeemCode entity that was returned from a transaction after it was closed,
+// so that all future queries will be executed through the driver which created the transaction.
+func (_m *RedeemCode) Unwrap() *RedeemCode {
+	_tx, ok := _m.config.driver.(*txDriver)
+	if !ok {
+		panic("ent: RedeemCode is not a transactional entity")
+	}
+	_m.config.driver = _tx.drv
+	return _m
+}
+
+// String implements the fmt.Stringer.
+func (_m *RedeemCode) String() string {
+	var builder strings.Builder
+	builder.WriteString("RedeemCode(")
+	builder.WriteString(fmt.Sprintf("id=%v, ", _m.ID))
+	builder.WriteString("code=")
+	builder.WriteString(_m.Code)
+	builder.WriteString(", ")
+	builder.WriteString("type=")
+	builder.WriteString(_m.Type)
+	builder.WriteString(", ")
+	builder.WriteString("value=")
+	builder.WriteString(fmt.Sprintf("%v", _m.Value))
+	builder.WriteString(", ")
+	builder.WriteString("status=")
+	builder.WriteString(_m.Status)
+	builder.WriteString(", ")
+	if v := _m.UsedBy; v != nil {
+		builder.WriteString("used_by=")
+		builder.WriteString(fmt.Sprintf("%v", *v))
+	}
+	builder.WriteString(", ")
+	if v := _m.UsedAt; v != nil {
+		builder.WriteString("used_at=")
+		builder.WriteString(v.Format(time.ANSIC))
+	}
+	builder.WriteString(", ")
+	if v := _m.Notes; v != nil {
+		builder.WriteString("notes=")
+		builder.WriteString(*v)
+	}
+	builder.WriteString(", ")
+	builder.WriteString("created_at=")
+	builder.WriteString(_m.CreatedAt.Format(time.ANSIC))
+	builder.WriteString(", ")
+	if v := _m.GroupID; v != nil {
+		builder.WriteString("group_id=")
+		builder.WriteString(fmt.Sprintf("%v", *v))
+	}
+	builder.WriteString(", ")
+	builder.WriteString("validity_days=")
+	builder.WriteString(fmt.Sprintf("%v", _m.ValidityDays))
+	builder.WriteByte(')')
+	return builder.String()
+}
+
+// RedeemCodes is a parsable slice of RedeemCode.
+type RedeemCodes []*RedeemCode

backend/ent/redeemcode/redeemcode.go

+// Code generated by ent, DO NOT EDIT.
+
+package redeemcode
+
+import (
+	"time"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+)
+
+const (
+	// Label holds the string label denoting the redeemcode type in the database.
+	Label = "redeem_code"
+	// FieldID holds the string denoting the id field in the database.
+	FieldID = "id"
+	// FieldCode holds the string denoting the code field in the database.
+	FieldCode = "code"
+	// FieldType holds the string denoting the type field in the database.
+	FieldType = "type"
+	// FieldValue holds the string denoting the value field in the database.
+	FieldValue = "value"
+	// FieldStatus holds the string denoting the status field in the database.
+	FieldStatus = "status"
+	// FieldUsedBy holds the string denoting the used_by field in the database.
+	FieldUsedBy = "used_by"
+	// FieldUsedAt holds the string denoting the used_at field in the database.
+	FieldUsedAt = "used_at"
+	// FieldNotes holds the string denoting the notes field in the database.
+	FieldNotes = "notes"
+	// FieldCreatedAt holds the string denoting the created_at field in the database.
+	FieldCreatedAt = "created_at"
+	// FieldGroupID holds the string denoting the group_id field in the database.
+	FieldGroupID = "group_id"
+	// FieldValidityDays holds the string denoting the validity_days field in the database.
+	FieldValidityDays = "validity_days"
+	// EdgeUser holds the string denoting the user edge name in mutations.
+	EdgeUser = "user"
+	// EdgeGroup holds the string denoting the group edge name in mutations.
+	EdgeGroup = "group"
+	// Table holds the table name of the redeemcode in the database.
+	Table = "redeem_codes"
+	// UserTable is the table that holds the user relation/edge.
+	UserTable = "redeem_codes"
+	// UserInverseTable is the table name for the User entity.
+	// It exists in this package in order to avoid circular dependency with the "user" package.
+	UserInverseTable = "users"
+	// UserColumn is the table column denoting the user relation/edge.
+	UserColumn = "used_by"
+	// GroupTable is the table that holds the group relation/edge.
+	GroupTable = "redeem_codes"
+	// GroupInverseTable is the table name for the Group entity.
+	// It exists in this package in order to avoid circular dependency with the "group" package.
+	GroupInverseTable = "groups"
+	// GroupColumn is the table column denoting the group relation/edge.
+	GroupColumn = "group_id"
+)
+
+// Columns holds all SQL columns for redeemcode fields.
+var Columns = []string{
+	FieldID,
+	FieldCode,
+	FieldType,
+	FieldValue,
+	FieldStatus,
+	FieldUsedBy,
+	FieldUsedAt,
+	FieldNotes,
+	FieldCreatedAt,
+	FieldGroupID,
+	FieldValidityDays,
+}
+
+// ValidColumn reports if the column name is valid (part of the table columns).
+func ValidColumn(column string) bool {
+	for i := range Columns {
+		if column == Columns[i] {
+			return true
+		}
+	}
+	return false
+}
+
+var (
+	// CodeValidator is a validator for the "code" field. It is called by the builders before save.
+	CodeValidator func(string) error
+	// DefaultType holds the default value on creation for the "type" field.
+	DefaultType string
+	// TypeValidator is a validator for the "type" field. It is called by the builders before save.
+	TypeValidator func(string) error
+	// DefaultValue holds the default value on creation for the "value" field.
+	DefaultValue float64
+	// DefaultStatus holds the default value on creation for the "status" field.
+	DefaultStatus string
+	// StatusValidator is a validator for the "status" field. It is called by the builders before save.
+	StatusValidator func(string) error
+	// DefaultCreatedAt holds the default value on creation for the "created_at" field.
+	DefaultCreatedAt func() time.Time
+	// DefaultValidityDays holds the default value on creation for the "validity_days" field.
+	DefaultValidityDays int
+)
+
+// OrderOption defines the ordering options for the RedeemCode queries.
+type OrderOption func(*sql.Selector)
+
+// ByID orders the results by the id field.
+func ByID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldID, opts...).ToFunc()
+}
+
+// ByCode orders the results by the code field.
+func ByCode(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldCode, opts...).ToFunc()
+}
+
+// ByType orders the results by the type field.
+func ByType(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldType, opts...).ToFunc()
+}
+
+// ByValue orders the results by the value field.
+func ByValue(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldValue, opts...).ToFunc()
+}
+
+// ByStatus orders the results by the status field.
+func ByStatus(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldStatus, opts...).ToFunc()
+}
+
+// ByUsedBy orders the results by the used_by field.
+func ByUsedBy(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldUsedBy, opts...).ToFunc()
+}
+
+// ByUsedAt orders the results by the used_at field.
+func ByUsedAt(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldUsedAt, opts...).ToFunc()
+}
+
+// ByNotes orders the results by the notes field.
+func ByNotes(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldNotes, opts...).ToFunc()
+}
+
+// ByCreatedAt orders the results by the created_at field.
+func ByCreatedAt(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldCreatedAt, opts...).ToFunc()
+}
+
+// ByGroupID orders the results by the group_id field.
+func ByGroupID(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldGroupID, opts...).ToFunc()
+}
+
+// ByValidityDays orders the results by the validity_days field.
+func ByValidityDays(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldValidityDays, opts...).ToFunc()
+}
+
+// ByUserField orders the results by user field.
+func ByUserField(field string, opts ...sql.OrderTermOption) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborTerms(s, newUserStep(), sql.OrderByField(field, opts...))
+	}
+}
+
+// ByGroupField orders the results by group field.
+func ByGroupField(field string, opts ...sql.OrderTermOption) OrderOption {
+	return func(s *sql.Selector) {
+		sqlgraph.OrderByNeighborTerms(s, newGroupStep(), sql.OrderByField(field, opts...))
+	}
+}
+func newUserStep() *sqlgraph.Step {
+	return sqlgraph.NewStep(
+		sqlgraph.From(Table, FieldID),
+		sqlgraph.To(UserInverseTable, FieldID),
+		sqlgraph.Edge(sqlgraph.M2O, true, UserTable, UserColumn),
+	)
+}
+func newGroupStep() *sqlgraph.Step {
+	return sqlgraph.NewStep(
+		sqlgraph.From(Table, FieldID),
+		sqlgraph.To(GroupInverseTable, FieldID),
+		sqlgraph.Edge(sqlgraph.M2O, true, GroupTable, GroupColumn),
+	)
+}

backend/ent/redeemcode/where.go

+// Code generated by ent, DO NOT EDIT.
+
+package redeemcode
+
+import (
+	"time"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"github.com/Wei-Shaw/sub2api/ent/predicate"
+)
+
+// ID filters vertices based on their ID field.
+func ID(id int64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEQ(FieldID, id))
+}
+
+// IDEQ applies the EQ predicate on the ID field.
+func IDEQ(id int64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEQ(FieldID, id))
+}
+
+// IDNEQ applies the NEQ predicate on the ID field.
+func IDNEQ(id int64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNEQ(FieldID, id))
+}
+
+// IDIn applies the In predicate on the ID field.
+func IDIn(ids ...int64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldIn(FieldID, ids...))
+}
+
+// IDNotIn applies the NotIn predicate on the ID field.
+func IDNotIn(ids ...int64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNotIn(FieldID, ids...))
+}
+
+// IDGT applies the GT predicate on the ID field.
+func IDGT(id int64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldGT(FieldID, id))
+}
+
+// IDGTE applies the GTE predicate on the ID field.
+func IDGTE(id int64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldGTE(FieldID, id))
+}
+
+// IDLT applies the LT predicate on the ID field.
+func IDLT(id int64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldLT(FieldID, id))
+}
+
+// IDLTE applies the LTE predicate on the ID field.
+func IDLTE(id int64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldLTE(FieldID, id))
+}
+
+// Code applies equality check predicate on the "code" field. It's identical to CodeEQ.
+func Code(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEQ(FieldCode, v))
+}
+
+// Type applies equality check predicate on the "type" field. It's identical to TypeEQ.
+func Type(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEQ(FieldType, v))
+}
+
+// Value applies equality check predicate on the "value" field. It's identical to ValueEQ.
+func Value(v float64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEQ(FieldValue, v))
+}
+
+// Status applies equality check predicate on the "status" field. It's identical to StatusEQ.
+func Status(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEQ(FieldStatus, v))
+}
+
+// UsedBy applies equality check predicate on the "used_by" field. It's identical to UsedByEQ.
+func UsedBy(v int64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEQ(FieldUsedBy, v))
+}
+
+// UsedAt applies equality check predicate on the "used_at" field. It's identical to UsedAtEQ.
+func UsedAt(v time.Time) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEQ(FieldUsedAt, v))
+}
+
+// Notes applies equality check predicate on the "notes" field. It's identical to NotesEQ.
+func Notes(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEQ(FieldNotes, v))
+}
+
+// CreatedAt applies equality check predicate on the "created_at" field. It's identical to CreatedAtEQ.
+func CreatedAt(v time.Time) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEQ(FieldCreatedAt, v))
+}
+
+// GroupID applies equality check predicate on the "group_id" field. It's identical to GroupIDEQ.
+func GroupID(v int64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEQ(FieldGroupID, v))
+}
+
+// ValidityDays applies equality check predicate on the "validity_days" field. It's identical to ValidityDaysEQ.
+func ValidityDays(v int) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEQ(FieldValidityDays, v))
+}
+
+// CodeEQ applies the EQ predicate on the "code" field.
+func CodeEQ(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEQ(FieldCode, v))
+}
+
+// CodeNEQ applies the NEQ predicate on the "code" field.
+func CodeNEQ(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNEQ(FieldCode, v))
+}
+
+// CodeIn applies the In predicate on the "code" field.
+func CodeIn(vs ...string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldIn(FieldCode, vs...))
+}
+
+// CodeNotIn applies the NotIn predicate on the "code" field.
+func CodeNotIn(vs ...string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNotIn(FieldCode, vs...))
+}
+
+// CodeGT applies the GT predicate on the "code" field.
+func CodeGT(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldGT(FieldCode, v))
+}
+
+// CodeGTE applies the GTE predicate on the "code" field.
+func CodeGTE(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldGTE(FieldCode, v))
+}
+
+// CodeLT applies the LT predicate on the "code" field.
+func CodeLT(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldLT(FieldCode, v))
+}
+
+// CodeLTE applies the LTE predicate on the "code" field.
+func CodeLTE(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldLTE(FieldCode, v))
+}
+
+// CodeContains applies the Contains predicate on the "code" field.
+func CodeContains(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldContains(FieldCode, v))
+}
+
+// CodeHasPrefix applies the HasPrefix predicate on the "code" field.
+func CodeHasPrefix(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldHasPrefix(FieldCode, v))
+}
+
+// CodeHasSuffix applies the HasSuffix predicate on the "code" field.
+func CodeHasSuffix(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldHasSuffix(FieldCode, v))
+}
+
+// CodeEqualFold applies the EqualFold predicate on the "code" field.
+func CodeEqualFold(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEqualFold(FieldCode, v))
+}
+
+// CodeContainsFold applies the ContainsFold predicate on the "code" field.
+func CodeContainsFold(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldContainsFold(FieldCode, v))
+}
+
+// TypeEQ applies the EQ predicate on the "type" field.
+func TypeEQ(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEQ(FieldType, v))
+}
+
+// TypeNEQ applies the NEQ predicate on the "type" field.
+func TypeNEQ(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNEQ(FieldType, v))
+}
+
+// TypeIn applies the In predicate on the "type" field.
+func TypeIn(vs ...string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldIn(FieldType, vs...))
+}
+
+// TypeNotIn applies the NotIn predicate on the "type" field.
+func TypeNotIn(vs ...string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNotIn(FieldType, vs...))
+}
+
+// TypeGT applies the GT predicate on the "type" field.
+func TypeGT(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldGT(FieldType, v))
+}
+
+// TypeGTE applies the GTE predicate on the "type" field.
+func TypeGTE(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldGTE(FieldType, v))
+}
+
+// TypeLT applies the LT predicate on the "type" field.
+func TypeLT(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldLT(FieldType, v))
+}
+
+// TypeLTE applies the LTE predicate on the "type" field.
+func TypeLTE(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldLTE(FieldType, v))
+}
+
+// TypeContains applies the Contains predicate on the "type" field.
+func TypeContains(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldContains(FieldType, v))
+}
+
+// TypeHasPrefix applies the HasPrefix predicate on the "type" field.
+func TypeHasPrefix(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldHasPrefix(FieldType, v))
+}
+
+// TypeHasSuffix applies the HasSuffix predicate on the "type" field.
+func TypeHasSuffix(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldHasSuffix(FieldType, v))
+}
+
+// TypeEqualFold applies the EqualFold predicate on the "type" field.
+func TypeEqualFold(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEqualFold(FieldType, v))
+}
+
+// TypeContainsFold applies the ContainsFold predicate on the "type" field.
+func TypeContainsFold(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldContainsFold(FieldType, v))
+}
+
+// ValueEQ applies the EQ predicate on the "value" field.
+func ValueEQ(v float64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEQ(FieldValue, v))
+}
+
+// ValueNEQ applies the NEQ predicate on the "value" field.
+func ValueNEQ(v float64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNEQ(FieldValue, v))
+}
+
+// ValueIn applies the In predicate on the "value" field.
+func ValueIn(vs ...float64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldIn(FieldValue, vs...))
+}
+
+// ValueNotIn applies the NotIn predicate on the "value" field.
+func ValueNotIn(vs ...float64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNotIn(FieldValue, vs...))
+}
+
+// ValueGT applies the GT predicate on the "value" field.
+func ValueGT(v float64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldGT(FieldValue, v))
+}
+
+// ValueGTE applies the GTE predicate on the "value" field.
+func ValueGTE(v float64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldGTE(FieldValue, v))
+}
+
+// ValueLT applies the LT predicate on the "value" field.
+func ValueLT(v float64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldLT(FieldValue, v))
+}
+
+// ValueLTE applies the LTE predicate on the "value" field.
+func ValueLTE(v float64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldLTE(FieldValue, v))
+}
+
+// StatusEQ applies the EQ predicate on the "status" field.
+func StatusEQ(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEQ(FieldStatus, v))
+}
+
+// StatusNEQ applies the NEQ predicate on the "status" field.
+func StatusNEQ(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNEQ(FieldStatus, v))
+}
+
+// StatusIn applies the In predicate on the "status" field.
+func StatusIn(vs ...string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldIn(FieldStatus, vs...))
+}
+
+// StatusNotIn applies the NotIn predicate on the "status" field.
+func StatusNotIn(vs ...string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNotIn(FieldStatus, vs...))
+}
+
+// StatusGT applies the GT predicate on the "status" field.
+func StatusGT(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldGT(FieldStatus, v))
+}
+
+// StatusGTE applies the GTE predicate on the "status" field.
+func StatusGTE(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldGTE(FieldStatus, v))
+}
+
+// StatusLT applies the LT predicate on the "status" field.
+func StatusLT(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldLT(FieldStatus, v))
+}
+
+// StatusLTE applies the LTE predicate on the "status" field.
+func StatusLTE(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldLTE(FieldStatus, v))
+}
+
+// StatusContains applies the Contains predicate on the "status" field.
+func StatusContains(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldContains(FieldStatus, v))
+}
+
+// StatusHasPrefix applies the HasPrefix predicate on the "status" field.
+func StatusHasPrefix(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldHasPrefix(FieldStatus, v))
+}
+
+// StatusHasSuffix applies the HasSuffix predicate on the "status" field.
+func StatusHasSuffix(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldHasSuffix(FieldStatus, v))
+}
+
+// StatusEqualFold applies the EqualFold predicate on the "status" field.
+func StatusEqualFold(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEqualFold(FieldStatus, v))
+}
+
+// StatusContainsFold applies the ContainsFold predicate on the "status" field.
+func StatusContainsFold(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldContainsFold(FieldStatus, v))
+}
+
+// UsedByEQ applies the EQ predicate on the "used_by" field.
+func UsedByEQ(v int64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEQ(FieldUsedBy, v))
+}
+
+// UsedByNEQ applies the NEQ predicate on the "used_by" field.
+func UsedByNEQ(v int64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNEQ(FieldUsedBy, v))
+}
+
+// UsedByIn applies the In predicate on the "used_by" field.
+func UsedByIn(vs ...int64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldIn(FieldUsedBy, vs...))
+}
+
+// UsedByNotIn applies the NotIn predicate on the "used_by" field.
+func UsedByNotIn(vs ...int64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNotIn(FieldUsedBy, vs...))
+}
+
+// UsedByIsNil applies the IsNil predicate on the "used_by" field.
+func UsedByIsNil() predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldIsNull(FieldUsedBy))
+}
+
+// UsedByNotNil applies the NotNil predicate on the "used_by" field.
+func UsedByNotNil() predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNotNull(FieldUsedBy))
+}
+
+// UsedAtEQ applies the EQ predicate on the "used_at" field.
+func UsedAtEQ(v time.Time) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEQ(FieldUsedAt, v))
+}
+
+// UsedAtNEQ applies the NEQ predicate on the "used_at" field.
+func UsedAtNEQ(v time.Time) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNEQ(FieldUsedAt, v))
+}
+
+// UsedAtIn applies the In predicate on the "used_at" field.
+func UsedAtIn(vs ...time.Time) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldIn(FieldUsedAt, vs...))
+}
+
+// UsedAtNotIn applies the NotIn predicate on the "used_at" field.
+func UsedAtNotIn(vs ...time.Time) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNotIn(FieldUsedAt, vs...))
+}
+
+// UsedAtGT applies the GT predicate on the "used_at" field.
+func UsedAtGT(v time.Time) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldGT(FieldUsedAt, v))
+}
+
+// UsedAtGTE applies the GTE predicate on the "used_at" field.
+func UsedAtGTE(v time.Time) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldGTE(FieldUsedAt, v))
+}
+
+// UsedAtLT applies the LT predicate on the "used_at" field.
+func UsedAtLT(v time.Time) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldLT(FieldUsedAt, v))
+}
+
+// UsedAtLTE applies the LTE predicate on the "used_at" field.
+func UsedAtLTE(v time.Time) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldLTE(FieldUsedAt, v))
+}
+
+// UsedAtIsNil applies the IsNil predicate on the "used_at" field.
+func UsedAtIsNil() predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldIsNull(FieldUsedAt))
+}
+
+// UsedAtNotNil applies the NotNil predicate on the "used_at" field.
+func UsedAtNotNil() predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNotNull(FieldUsedAt))
+}
+
+// NotesEQ applies the EQ predicate on the "notes" field.
+func NotesEQ(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEQ(FieldNotes, v))
+}
+
+// NotesNEQ applies the NEQ predicate on the "notes" field.
+func NotesNEQ(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNEQ(FieldNotes, v))
+}
+
+// NotesIn applies the In predicate on the "notes" field.
+func NotesIn(vs ...string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldIn(FieldNotes, vs...))
+}
+
+// NotesNotIn applies the NotIn predicate on the "notes" field.
+func NotesNotIn(vs ...string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNotIn(FieldNotes, vs...))
+}
+
+// NotesGT applies the GT predicate on the "notes" field.
+func NotesGT(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldGT(FieldNotes, v))
+}
+
+// NotesGTE applies the GTE predicate on the "notes" field.
+func NotesGTE(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldGTE(FieldNotes, v))
+}
+
+// NotesLT applies the LT predicate on the "notes" field.
+func NotesLT(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldLT(FieldNotes, v))
+}
+
+// NotesLTE applies the LTE predicate on the "notes" field.
+func NotesLTE(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldLTE(FieldNotes, v))
+}
+
+// NotesContains applies the Contains predicate on the "notes" field.
+func NotesContains(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldContains(FieldNotes, v))
+}
+
+// NotesHasPrefix applies the HasPrefix predicate on the "notes" field.
+func NotesHasPrefix(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldHasPrefix(FieldNotes, v))
+}
+
+// NotesHasSuffix applies the HasSuffix predicate on the "notes" field.
+func NotesHasSuffix(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldHasSuffix(FieldNotes, v))
+}
+
+// NotesIsNil applies the IsNil predicate on the "notes" field.
+func NotesIsNil() predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldIsNull(FieldNotes))
+}
+
+// NotesNotNil applies the NotNil predicate on the "notes" field.
+func NotesNotNil() predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNotNull(FieldNotes))
+}
+
+// NotesEqualFold applies the EqualFold predicate on the "notes" field.
+func NotesEqualFold(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEqualFold(FieldNotes, v))
+}
+
+// NotesContainsFold applies the ContainsFold predicate on the "notes" field.
+func NotesContainsFold(v string) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldContainsFold(FieldNotes, v))
+}
+
+// CreatedAtEQ applies the EQ predicate on the "created_at" field.
+func CreatedAtEQ(v time.Time) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEQ(FieldCreatedAt, v))
+}
+
+// CreatedAtNEQ applies the NEQ predicate on the "created_at" field.
+func CreatedAtNEQ(v time.Time) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNEQ(FieldCreatedAt, v))
+}
+
+// CreatedAtIn applies the In predicate on the "created_at" field.
+func CreatedAtIn(vs ...time.Time) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldIn(FieldCreatedAt, vs...))
+}
+
+// CreatedAtNotIn applies the NotIn predicate on the "created_at" field.
+func CreatedAtNotIn(vs ...time.Time) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNotIn(FieldCreatedAt, vs...))
+}
+
+// CreatedAtGT applies the GT predicate on the "created_at" field.
+func CreatedAtGT(v time.Time) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldGT(FieldCreatedAt, v))
+}
+
+// CreatedAtGTE applies the GTE predicate on the "created_at" field.
+func CreatedAtGTE(v time.Time) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldGTE(FieldCreatedAt, v))
+}
+
+// CreatedAtLT applies the LT predicate on the "created_at" field.
+func CreatedAtLT(v time.Time) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldLT(FieldCreatedAt, v))
+}
+
+// CreatedAtLTE applies the LTE predicate on the "created_at" field.
+func CreatedAtLTE(v time.Time) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldLTE(FieldCreatedAt, v))
+}
+
+// GroupIDEQ applies the EQ predicate on the "group_id" field.
+func GroupIDEQ(v int64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEQ(FieldGroupID, v))
+}
+
+// GroupIDNEQ applies the NEQ predicate on the "group_id" field.
+func GroupIDNEQ(v int64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNEQ(FieldGroupID, v))
+}
+
+// GroupIDIn applies the In predicate on the "group_id" field.
+func GroupIDIn(vs ...int64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldIn(FieldGroupID, vs...))
+}
+
+// GroupIDNotIn applies the NotIn predicate on the "group_id" field.
+func GroupIDNotIn(vs ...int64) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNotIn(FieldGroupID, vs...))
+}
+
+// GroupIDIsNil applies the IsNil predicate on the "group_id" field.
+func GroupIDIsNil() predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldIsNull(FieldGroupID))
+}
+
+// GroupIDNotNil applies the NotNil predicate on the "group_id" field.
+func GroupIDNotNil() predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNotNull(FieldGroupID))
+}
+
+// ValidityDaysEQ applies the EQ predicate on the "validity_days" field.
+func ValidityDaysEQ(v int) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldEQ(FieldValidityDays, v))
+}
+
+// ValidityDaysNEQ applies the NEQ predicate on the "validity_days" field.
+func ValidityDaysNEQ(v int) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNEQ(FieldValidityDays, v))
+}
+
+// ValidityDaysIn applies the In predicate on the "validity_days" field.
+func ValidityDaysIn(vs ...int) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldIn(FieldValidityDays, vs...))
+}
+
+// ValidityDaysNotIn applies the NotIn predicate on the "validity_days" field.
+func ValidityDaysNotIn(vs ...int) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldNotIn(FieldValidityDays, vs...))
+}
+
+// ValidityDaysGT applies the GT predicate on the "validity_days" field.
+func ValidityDaysGT(v int) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldGT(FieldValidityDays, v))
+}
+
+// ValidityDaysGTE applies the GTE predicate on the "validity_days" field.
+func ValidityDaysGTE(v int) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldGTE(FieldValidityDays, v))
+}
+
+// ValidityDaysLT applies the LT predicate on the "validity_days" field.
+func ValidityDaysLT(v int) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldLT(FieldValidityDays, v))
+}
+
+// ValidityDaysLTE applies the LTE predicate on the "validity_days" field.
+func ValidityDaysLTE(v int) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.FieldLTE(FieldValidityDays, v))
+}
+
+// HasUser applies the HasEdge predicate on the "user" edge.
+func HasUser() predicate.RedeemCode {
+	return predicate.RedeemCode(func(s *sql.Selector) {
+		step := sqlgraph.NewStep(
+			sqlgraph.From(Table, FieldID),
+			sqlgraph.Edge(sqlgraph.M2O, true, UserTable, UserColumn),
+		)
+		sqlgraph.HasNeighbors(s, step)
+	})
+}
+
+// HasUserWith applies the HasEdge predicate on the "user" edge with a given conditions (other predicates).
+func HasUserWith(preds ...predicate.User) predicate.RedeemCode {
+	return predicate.RedeemCode(func(s *sql.Selector) {
+		step := newUserStep()
+		sqlgraph.HasNeighborsWith(s, step, func(s *sql.Selector) {
+			for _, p := range preds {
+				p(s)
+			}
+		})
+	})
+}
+
+// HasGroup applies the HasEdge predicate on the "group" edge.
+func HasGroup() predicate.RedeemCode {
+	return predicate.RedeemCode(func(s *sql.Selector) {
+		step := sqlgraph.NewStep(
+			sqlgraph.From(Table, FieldID),
+			sqlgraph.Edge(sqlgraph.M2O, true, GroupTable, GroupColumn),
+		)
+		sqlgraph.HasNeighbors(s, step)
+	})
+}
+
+// HasGroupWith applies the HasEdge predicate on the "group" edge with a given conditions (other predicates).
+func HasGroupWith(preds ...predicate.Group) predicate.RedeemCode {
+	return predicate.RedeemCode(func(s *sql.Selector) {
+		step := newGroupStep()
+		sqlgraph.HasNeighborsWith(s, step, func(s *sql.Selector) {
+			for _, p := range preds {
+				p(s)
+			}
+		})
+	})
+}
+
+// And groups predicates with the AND operator between them.
+func And(predicates ...predicate.RedeemCode) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.AndPredicates(predicates...))
+}
+
+// Or groups predicates with the OR operator between them.
+func Or(predicates ...predicate.RedeemCode) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.OrPredicates(predicates...))
+}
+
+// Not applies the not operator on the given predicate.
+func Not(p predicate.RedeemCode) predicate.RedeemCode {
+	return predicate.RedeemCode(sql.NotPredicates(p))
+}

backend/ent/redeemcode_create.go

+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+	"github.com/Wei-Shaw/sub2api/ent/group"
+	"github.com/Wei-Shaw/sub2api/ent/redeemcode"
+	"github.com/Wei-Shaw/sub2api/ent/user"
+)
+
+// RedeemCodeCreate is the builder for creating a RedeemCode entity.
+type RedeemCodeCreate struct {
+	config
+	mutation *RedeemCodeMutation
+	hooks    []Hook
+	conflict []sql.ConflictOption
+}
+
+// SetCode sets the "code" field.
+func (_c *RedeemCodeCreate) SetCode(v string) *RedeemCodeCreate {
+	_c.mutation.SetCode(v)
+	return _c
+}
+
+// SetType sets the "type" field.
+func (_c *RedeemCodeCreate) SetType(v string) *RedeemCodeCreate {
+	_c.mutation.SetType(v)
+	return _c
+}
+
+// SetNillableType sets the "type" field if the given value is not nil.
+func (_c *RedeemCodeCreate) SetNillableType(v *string) *RedeemCodeCreate {
+	if v != nil {
+		_c.SetType(*v)
+	}
+	return _c
+}
+
+// SetValue sets the "value" field.
+func (_c *RedeemCodeCreate) SetValue(v float64) *RedeemCodeCreate {
+	_c.mutation.SetValue(v)
+	return _c
+}
+
+// SetNillableValue sets the "value" field if the given value is not nil.
+func (_c *RedeemCodeCreate) SetNillableValue(v *float64) *RedeemCodeCreate {
+	if v != nil {
+		_c.SetValue(*v)
+	}
+	return _c
+}
+
+// SetStatus sets the "status" field.
+func (_c *RedeemCodeCreate) SetStatus(v string) *RedeemCodeCreate {
+	_c.mutation.SetStatus(v)
+	return _c
+}
+
+// SetNillableStatus sets the "status" field if the given value is not nil.
+func (_c *RedeemCodeCreate) SetNillableStatus(v *string) *RedeemCodeCreate {
+	if v != nil {
+		_c.SetStatus(*v)
+	}
+	return _c
+}
+
+// SetUsedBy sets the "used_by" field.
+func (_c *RedeemCodeCreate) SetUsedBy(v int64) *RedeemCodeCreate {
+	_c.mutation.SetUsedBy(v)
+	return _c
+}
+
+// SetNillableUsedBy sets the "used_by" field if the given value is not nil.
+func (_c *RedeemCodeCreate) SetNillableUsedBy(v *int64) *RedeemCodeCreate {
+	if v != nil {
+		_c.SetUsedBy(*v)
+	}
+	return _c
+}
+
+// SetUsedAt sets the "used_at" field.
+func (_c *RedeemCodeCreate) SetUsedAt(v time.Time) *RedeemCodeCreate {
+	_c.mutation.SetUsedAt(v)
+	return _c
+}
+
+// SetNillableUsedAt sets the "used_at" field if the given value is not nil.
+func (_c *RedeemCodeCreate) SetNillableUsedAt(v *time.Time) *RedeemCodeCreate {
+	if v != nil {
+		_c.SetUsedAt(*v)
+	}
+	return _c
+}
+
+// SetNotes sets the "notes" field.
+func (_c *RedeemCodeCreate) SetNotes(v string) *RedeemCodeCreate {
+	_c.mutation.SetNotes(v)
+	return _c
+}
+
+// SetNillableNotes sets the "notes" field if the given value is not nil.
+func (_c *RedeemCodeCreate) SetNillableNotes(v *string) *RedeemCodeCreate {
+	if v != nil {
+		_c.SetNotes(*v)
+	}
+	return _c
+}
+
+// SetCreatedAt sets the "created_at" field.
+func (_c *RedeemCodeCreate) SetCreatedAt(v time.Time) *RedeemCodeCreate {
+	_c.mutation.SetCreatedAt(v)
+	return _c
+}
+
+// SetNillableCreatedAt sets the "created_at" field if the given value is not nil.
+func (_c *RedeemCodeCreate) SetNillableCreatedAt(v *time.Time) *RedeemCodeCreate {
+	if v != nil {
+		_c.SetCreatedAt(*v)
+	}
+	return _c
+}
+
+// SetGroupID sets the "group_id" field.
+func (_c *RedeemCodeCreate) SetGroupID(v int64) *RedeemCodeCreate {
+	_c.mutation.SetGroupID(v)
+	return _c
+}
+
+// SetNillableGroupID sets the "group_id" field if the given value is not nil.
+func (_c *RedeemCodeCreate) SetNillableGroupID(v *int64) *RedeemCodeCreate {
+	if v != nil {
+		_c.SetGroupID(*v)
+	}
+	return _c
+}
+
+// SetValidityDays sets the "validity_days" field.
+func (_c *RedeemCodeCreate) SetValidityDays(v int) *RedeemCodeCreate {
+	_c.mutation.SetValidityDays(v)
+	return _c
+}
+
+// SetNillableValidityDays sets the "validity_days" field if the given value is not nil.
+func (_c *RedeemCodeCreate) SetNillableValidityDays(v *int) *RedeemCodeCreate {
+	if v != nil {
+		_c.SetValidityDays(*v)
+	}
+	return _c
+}
+
+// SetUserID sets the "user" edge to the User entity by ID.
+func (_c *RedeemCodeCreate) SetUserID(id int64) *RedeemCodeCreate {
+	_c.mutation.SetUserID(id)
+	return _c
+}
+
+// SetNillableUserID sets the "user" edge to the User entity by ID if the given value is not nil.
+func (_c *RedeemCodeCreate) SetNillableUserID(id *int64) *RedeemCodeCreate {
+	if id != nil {
+		_c = _c.SetUserID(*id)
+	}
+	return _c
+}
+
+// SetUser sets the "user" edge to the User entity.
+func (_c *RedeemCodeCreate) SetUser(v *User) *RedeemCodeCreate {
+	return _c.SetUserID(v.ID)
+}
+
+// SetGroup sets the "group" edge to the Group entity.
+func (_c *RedeemCodeCreate) SetGroup(v *Group) *RedeemCodeCreate {
+	return _c.SetGroupID(v.ID)
+}
+
+// Mutation returns the RedeemCodeMutation object of the builder.
+func (_c *RedeemCodeCreate) Mutation() *RedeemCodeMutation {
+	return _c.mutation
+}
+
+// Save creates the RedeemCode in the database.
+func (_c *RedeemCodeCreate) Save(ctx context.Context) (*RedeemCode, error) {
+	_c.defaults()
+	return withHooks(ctx, _c.sqlSave, _c.mutation, _c.hooks)
+}
+
+// SaveX calls Save and panics if Save returns an error.
+func (_c *RedeemCodeCreate) SaveX(ctx context.Context) *RedeemCode {
+	v, err := _c.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (_c *RedeemCodeCreate) Exec(ctx context.Context) error {
+	_, err := _c.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_c *RedeemCodeCreate) ExecX(ctx context.Context) {
+	if err := _c.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// defaults sets the default values of the builder before save.
+func (_c *RedeemCodeCreate) defaults() {
+	if _, ok := _c.mutation.GetType(); !ok {
+		v := redeemcode.DefaultType
+		_c.mutation.SetType(v)
+	}
+	if _, ok := _c.mutation.Value(); !ok {
+		v := redeemcode.DefaultValue
+		_c.mutation.SetValue(v)
+	}
+	if _, ok := _c.mutation.Status(); !ok {
+		v := redeemcode.DefaultStatus
+		_c.mutation.SetStatus(v)
+	}
+	if _, ok := _c.mutation.CreatedAt(); !ok {
+		v := redeemcode.DefaultCreatedAt()
+		_c.mutation.SetCreatedAt(v)
+	}
+	if _, ok := _c.mutation.ValidityDays(); !ok {
+		v := redeemcode.DefaultValidityDays
+		_c.mutation.SetValidityDays(v)
+	}
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (_c *RedeemCodeCreate) check() error {
+	if _, ok := _c.mutation.Code(); !ok {
+		return &ValidationError{Name: "code", err: errors.New(`ent: missing required field "RedeemCode.code"`)}
+	}
+	if v, ok := _c.mutation.Code(); ok {
+		if err := redeemcode.CodeValidator(v); err != nil {
+			return &ValidationError{Name: "code", err: fmt.Errorf(`ent: validator failed for field "RedeemCode.code": %w`, err)}
+		}
+	}
+	if _, ok := _c.mutation.GetType(); !ok {
+		return &ValidationError{Name: "type", err: errors.New(`ent: missing required field "RedeemCode.type"`)}
+	}
+	if v, ok := _c.mutation.GetType(); ok {
+		if err := redeemcode.TypeValidator(v); err != nil {
+			return &ValidationError{Name: "type", err: fmt.Errorf(`ent: validator failed for field "RedeemCode.type": %w`, err)}
+		}
+	}
+	if _, ok := _c.mutation.Value(); !ok {
+		return &ValidationError{Name: "value", err: errors.New(`ent: missing required field "RedeemCode.value"`)}
+	}
+	if _, ok := _c.mutation.Status(); !ok {
+		return &ValidationError{Name: "status", err: errors.New(`ent: missing required field "RedeemCode.status"`)}
+	}
+	if v, ok := _c.mutation.Status(); ok {
+		if err := redeemcode.StatusValidator(v); err != nil {
+			return &ValidationError{Name: "status", err: fmt.Errorf(`ent: validator failed for field "RedeemCode.status": %w`, err)}
+		}
+	}
+	if _, ok := _c.mutation.CreatedAt(); !ok {
+		return &ValidationError{Name: "created_at", err: errors.New(`ent: missing required field "RedeemCode.created_at"`)}
+	}
+	if _, ok := _c.mutation.ValidityDays(); !ok {
+		return &ValidationError{Name: "validity_days", err: errors.New(`ent: missing required field "RedeemCode.validity_days"`)}
+	}
+	return nil
+}
+
+func (_c *RedeemCodeCreate) sqlSave(ctx context.Context) (*RedeemCode, error) {
+	if err := _c.check(); err != nil {
+		return nil, err
+	}
+	_node, _spec := _c.createSpec()
+	if err := sqlgraph.CreateNode(ctx, _c.driver, _spec); err != nil {
+		if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	id := _spec.ID.Value.(int64)
+	_node.ID = int64(id)
+	_c.mutation.id = &_node.ID
+	_c.mutation.done = true
+	return _node, nil
+}
+
+func (_c *RedeemCodeCreate) createSpec() (*RedeemCode, *sqlgraph.CreateSpec) {
+	var (
+		_node = &RedeemCode{config: _c.config}
+		_spec = sqlgraph.NewCreateSpec(redeemcode.Table, sqlgraph.NewFieldSpec(redeemcode.FieldID, field.TypeInt64))
+	)
+	_spec.OnConflict = _c.conflict
+	if value, ok := _c.mutation.Code(); ok {
+		_spec.SetField(redeemcode.FieldCode, field.TypeString, value)
+		_node.Code = value
+	}
+	if value, ok := _c.mutation.GetType(); ok {
+		_spec.SetField(redeemcode.FieldType, field.TypeString, value)
+		_node.Type = value
+	}
+	if value, ok := _c.mutation.Value(); ok {
+		_spec.SetField(redeemcode.FieldValue, field.TypeFloat64, value)
+		_node.Value = value
+	}
+	if value, ok := _c.mutation.Status(); ok {
+		_spec.SetField(redeemcode.FieldStatus, field.TypeString, value)
+		_node.Status = value
+	}
+	if value, ok := _c.mutation.UsedAt(); ok {
+		_spec.SetField(redeemcode.FieldUsedAt, field.TypeTime, value)
+		_node.UsedAt = &value
+	}
+	if value, ok := _c.mutation.Notes(); ok {
+		_spec.SetField(redeemcode.FieldNotes, field.TypeString, value)
+		_node.Notes = &value
+	}
+	if value, ok := _c.mutation.CreatedAt(); ok {
+		_spec.SetField(redeemcode.FieldCreatedAt, field.TypeTime, value)
+		_node.CreatedAt = value
+	}
+	if value, ok := _c.mutation.ValidityDays(); ok {
+		_spec.SetField(redeemcode.FieldValidityDays, field.TypeInt, value)
+		_node.ValidityDays = value
+	}
+	if nodes := _c.mutation.UserIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: true,
+			Table:   redeemcode.UserTable,
+			Columns: []string{redeemcode.UserColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt64),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_node.UsedBy = &nodes[0]
+		_spec.Edges = append(_spec.Edges, edge)
+	}
+	if nodes := _c.mutation.GroupIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: true,
+			Table:   redeemcode.GroupTable,
+			Columns: []string{redeemcode.GroupColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(group.FieldID, field.TypeInt64),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_node.GroupID = &nodes[0]
+		_spec.Edges = append(_spec.Edges, edge)
+	}
+	return _node, _spec
+}
+
+// OnConflict allows configuring the `ON CONFLICT` / `ON DUPLICATE KEY` clause
+// of the `INSERT` statement. For example:
+//
+//	client.RedeemCode.Create().
+//		SetCode(v).
+//		OnConflict(
+//			// Update the row with the new values
+//			// the was proposed for insertion.
+//			sql.ResolveWithNewValues(),
+//		).
+//		// Override some of the fields with custom
+//		// update values.
+//		Update(func(u *ent.RedeemCodeUpsert) {
+//			SetCode(v+v).
+//		}).
+//		Exec(ctx)
+func (_c *RedeemCodeCreate) OnConflict(opts ...sql.ConflictOption) *RedeemCodeUpsertOne {
+	_c.conflict = opts
+	return &RedeemCodeUpsertOne{
+		create: _c,
+	}
+}
+
+// OnConflictColumns calls `OnConflict` and configures the columns
+// as conflict target. Using this option is equivalent to using:
+//
+//	client.RedeemCode.Create().
+//		OnConflict(sql.ConflictColumns(columns...)).
+//		Exec(ctx)
+func (_c *RedeemCodeCreate) OnConflictColumns(columns ...string) *RedeemCodeUpsertOne {
+	_c.conflict = append(_c.conflict, sql.ConflictColumns(columns...))
+	return &RedeemCodeUpsertOne{
+		create: _c,
+	}
+}
+
+type (
+	// RedeemCodeUpsertOne is the builder for "upsert"-ing
+	//  one RedeemCode node.
+	RedeemCodeUpsertOne struct {
+		create *RedeemCodeCreate
+	}
+
+	// RedeemCodeUpsert is the "OnConflict" setter.
+	RedeemCodeUpsert struct {
+		*sql.UpdateSet
+	}
+)
+
+// SetCode sets the "code" field.
+func (u *RedeemCodeUpsert) SetCode(v string) *RedeemCodeUpsert {
+	u.Set(redeemcode.FieldCode, v)
+	return u
+}
+
+// UpdateCode sets the "code" field to the value that was provided on create.
+func (u *RedeemCodeUpsert) UpdateCode() *RedeemCodeUpsert {
+	u.SetExcluded(redeemcode.FieldCode)
+	return u
+}
+
+// SetType sets the "type" field.
+func (u *RedeemCodeUpsert) SetType(v string) *RedeemCodeUpsert {
+	u.Set(redeemcode.FieldType, v)
+	return u
+}
+
+// UpdateType sets the "type" field to the value that was provided on create.
+func (u *RedeemCodeUpsert) UpdateType() *RedeemCodeUpsert {
+	u.SetExcluded(redeemcode.FieldType)
+	return u
+}
+
+// SetValue sets the "value" field.
+func (u *RedeemCodeUpsert) SetValue(v float64) *RedeemCodeUpsert {
+	u.Set(redeemcode.FieldValue, v)
+	return u
+}
+
+// UpdateValue sets the "value" field to the value that was provided on create.
+func (u *RedeemCodeUpsert) UpdateValue() *RedeemCodeUpsert {
+	u.SetExcluded(redeemcode.FieldValue)
+	return u
+}
+
+// AddValue adds v to the "value" field.
+func (u *RedeemCodeUpsert) AddValue(v float64) *RedeemCodeUpsert {
+	u.Add(redeemcode.FieldValue, v)
+	return u
+}
+
+// SetStatus sets the "status" field.
+func (u *RedeemCodeUpsert) SetStatus(v string) *RedeemCodeUpsert {
+	u.Set(redeemcode.FieldStatus, v)
+	return u
+}
+
+// UpdateStatus sets the "status" field to the value that was provided on create.
+func (u *RedeemCodeUpsert) UpdateStatus() *RedeemCodeUpsert {
+	u.SetExcluded(redeemcode.FieldStatus)
+	return u
+}
+
+// SetUsedBy sets the "used_by" field.
+func (u *RedeemCodeUpsert) SetUsedBy(v int64) *RedeemCodeUpsert {
+	u.Set(redeemcode.FieldUsedBy, v)
+	return u
+}
+
+// UpdateUsedBy sets the "used_by" field to the value that was provided on create.
+func (u *RedeemCodeUpsert) UpdateUsedBy() *RedeemCodeUpsert {
+	u.SetExcluded(redeemcode.FieldUsedBy)
+	return u
+}
+
+// ClearUsedBy clears the value of the "used_by" field.
+func (u *RedeemCodeUpsert) ClearUsedBy() *RedeemCodeUpsert {
+	u.SetNull(redeemcode.FieldUsedBy)
+	return u
+}
+
+// SetUsedAt sets the "used_at" field.
+func (u *RedeemCodeUpsert) SetUsedAt(v time.Time) *RedeemCodeUpsert {
+	u.Set(redeemcode.FieldUsedAt, v)
+	return u
+}
+
+// UpdateUsedAt sets the "used_at" field to the value that was provided on create.
+func (u *RedeemCodeUpsert) UpdateUsedAt() *RedeemCodeUpsert {
+	u.SetExcluded(redeemcode.FieldUsedAt)
+	return u
+}
+
+// ClearUsedAt clears the value of the "used_at" field.
+func (u *RedeemCodeUpsert) ClearUsedAt() *RedeemCodeUpsert {
+	u.SetNull(redeemcode.FieldUsedAt)
+	return u
+}
+
+// SetNotes sets the "notes" field.
+func (u *RedeemCodeUpsert) SetNotes(v string) *RedeemCodeUpsert {
+	u.Set(redeemcode.FieldNotes, v)
+	return u
+}
+
+// UpdateNotes sets the "notes" field to the value that was provided on create.
+func (u *RedeemCodeUpsert) UpdateNotes() *RedeemCodeUpsert {
+	u.SetExcluded(redeemcode.FieldNotes)
+	return u
+}
+
+// ClearNotes clears the value of the "notes" field.
+func (u *RedeemCodeUpsert) ClearNotes() *RedeemCodeUpsert {
+	u.SetNull(redeemcode.FieldNotes)
+	return u
+}
+
+// SetGroupID sets the "group_id" field.
+func (u *RedeemCodeUpsert) SetGroupID(v int64) *RedeemCodeUpsert {
+	u.Set(redeemcode.FieldGroupID, v)
+	return u
+}
+
+// UpdateGroupID sets the "group_id" field to the value that was provided on create.
+func (u *RedeemCodeUpsert) UpdateGroupID() *RedeemCodeUpsert {
+	u.SetExcluded(redeemcode.FieldGroupID)
+	return u
+}
+
+// ClearGroupID clears the value of the "group_id" field.
+func (u *RedeemCodeUpsert) ClearGroupID() *RedeemCodeUpsert {
+	u.SetNull(redeemcode.FieldGroupID)
+	return u
+}
+
+// SetValidityDays sets the "validity_days" field.
+func (u *RedeemCodeUpsert) SetValidityDays(v int) *RedeemCodeUpsert {
+	u.Set(redeemcode.FieldValidityDays, v)
+	return u
+}
+
+// UpdateValidityDays sets the "validity_days" field to the value that was provided on create.
+func (u *RedeemCodeUpsert) UpdateValidityDays() *RedeemCodeUpsert {
+	u.SetExcluded(redeemcode.FieldValidityDays)
+	return u
+}
+
+// AddValidityDays adds v to the "validity_days" field.
+func (u *RedeemCodeUpsert) AddValidityDays(v int) *RedeemCodeUpsert {
+	u.Add(redeemcode.FieldValidityDays, v)
+	return u
+}
+
+// UpdateNewValues updates the mutable fields using the new values that were set on create.
+// Using this option is equivalent to using:
+//
+//	client.RedeemCode.Create().
+//		OnConflict(
+//			sql.ResolveWithNewValues(),
+//		).
+//		Exec(ctx)
+func (u *RedeemCodeUpsertOne) UpdateNewValues() *RedeemCodeUpsertOne {
+	u.create.conflict = append(u.create.conflict, sql.ResolveWithNewValues())
+	u.create.conflict = append(u.create.conflict, sql.ResolveWith(func(s *sql.UpdateSet) {
+		if _, exists := u.create.mutation.CreatedAt(); exists {
+			s.SetIgnore(redeemcode.FieldCreatedAt)
+		}
+	}))
+	return u
+}
+
+// Ignore sets each column to itself in case of conflict.
+// Using this option is equivalent to using:
+//
+//	client.RedeemCode.Create().
+//	    OnConflict(sql.ResolveWithIgnore()).
+//	    Exec(ctx)
+func (u *RedeemCodeUpsertOne) Ignore() *RedeemCodeUpsertOne {
+	u.create.conflict = append(u.create.conflict, sql.ResolveWithIgnore())
+	return u
+}
+
+// DoNothing configures the conflict_action to `DO NOTHING`.
+// Supported only by SQLite and PostgreSQL.
+func (u *RedeemCodeUpsertOne) DoNothing() *RedeemCodeUpsertOne {
+	u.create.conflict = append(u.create.conflict, sql.DoNothing())
+	return u
+}
+
+// Update allows overriding fields `UPDATE` values. See the RedeemCodeCreate.OnConflict
+// documentation for more info.
+func (u *RedeemCodeUpsertOne) Update(set func(*RedeemCodeUpsert)) *RedeemCodeUpsertOne {
+	u.create.conflict = append(u.create.conflict, sql.ResolveWith(func(update *sql.UpdateSet) {
+		set(&RedeemCodeUpsert{UpdateSet: update})
+	}))
+	return u
+}
+
+// SetCode sets the "code" field.
+func (u *RedeemCodeUpsertOne) SetCode(v string) *RedeemCodeUpsertOne {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.SetCode(v)
+	})
+}
+
+// UpdateCode sets the "code" field to the value that was provided on create.
+func (u *RedeemCodeUpsertOne) UpdateCode() *RedeemCodeUpsertOne {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.UpdateCode()
+	})
+}
+
+// SetType sets the "type" field.
+func (u *RedeemCodeUpsertOne) SetType(v string) *RedeemCodeUpsertOne {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.SetType(v)
+	})
+}
+
+// UpdateType sets the "type" field to the value that was provided on create.
+func (u *RedeemCodeUpsertOne) UpdateType() *RedeemCodeUpsertOne {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.UpdateType()
+	})
+}
+
+// SetValue sets the "value" field.
+func (u *RedeemCodeUpsertOne) SetValue(v float64) *RedeemCodeUpsertOne {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.SetValue(v)
+	})
+}
+
+// AddValue adds v to the "value" field.
+func (u *RedeemCodeUpsertOne) AddValue(v float64) *RedeemCodeUpsertOne {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.AddValue(v)
+	})
+}
+
+// UpdateValue sets the "value" field to the value that was provided on create.
+func (u *RedeemCodeUpsertOne) UpdateValue() *RedeemCodeUpsertOne {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.UpdateValue()
+	})
+}
+
+// SetStatus sets the "status" field.
+func (u *RedeemCodeUpsertOne) SetStatus(v string) *RedeemCodeUpsertOne {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.SetStatus(v)
+	})
+}
+
+// UpdateStatus sets the "status" field to the value that was provided on create.
+func (u *RedeemCodeUpsertOne) UpdateStatus() *RedeemCodeUpsertOne {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.UpdateStatus()
+	})
+}
+
+// SetUsedBy sets the "used_by" field.
+func (u *RedeemCodeUpsertOne) SetUsedBy(v int64) *RedeemCodeUpsertOne {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.SetUsedBy(v)
+	})
+}
+
+// UpdateUsedBy sets the "used_by" field to the value that was provided on create.
+func (u *RedeemCodeUpsertOne) UpdateUsedBy() *RedeemCodeUpsertOne {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.UpdateUsedBy()
+	})
+}
+
+// ClearUsedBy clears the value of the "used_by" field.
+func (u *RedeemCodeUpsertOne) ClearUsedBy() *RedeemCodeUpsertOne {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.ClearUsedBy()
+	})
+}
+
+// SetUsedAt sets the "used_at" field.
+func (u *RedeemCodeUpsertOne) SetUsedAt(v time.Time) *RedeemCodeUpsertOne {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.SetUsedAt(v)
+	})
+}
+
+// UpdateUsedAt sets the "used_at" field to the value that was provided on create.
+func (u *RedeemCodeUpsertOne) UpdateUsedAt() *RedeemCodeUpsertOne {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.UpdateUsedAt()
+	})
+}
+
+// ClearUsedAt clears the value of the "used_at" field.
+func (u *RedeemCodeUpsertOne) ClearUsedAt() *RedeemCodeUpsertOne {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.ClearUsedAt()
+	})
+}
+
+// SetNotes sets the "notes" field.
+func (u *RedeemCodeUpsertOne) SetNotes(v string) *RedeemCodeUpsertOne {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.SetNotes(v)
+	})
+}
+
+// UpdateNotes sets the "notes" field to the value that was provided on create.
+func (u *RedeemCodeUpsertOne) UpdateNotes() *RedeemCodeUpsertOne {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.UpdateNotes()
+	})
+}
+
+// ClearNotes clears the value of the "notes" field.
+func (u *RedeemCodeUpsertOne) ClearNotes() *RedeemCodeUpsertOne {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.ClearNotes()
+	})
+}
+
+// SetGroupID sets the "group_id" field.
+func (u *RedeemCodeUpsertOne) SetGroupID(v int64) *RedeemCodeUpsertOne {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.SetGroupID(v)
+	})
+}
+
+// UpdateGroupID sets the "group_id" field to the value that was provided on create.
+func (u *RedeemCodeUpsertOne) UpdateGroupID() *RedeemCodeUpsertOne {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.UpdateGroupID()
+	})
+}
+
+// ClearGroupID clears the value of the "group_id" field.
+func (u *RedeemCodeUpsertOne) ClearGroupID() *RedeemCodeUpsertOne {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.ClearGroupID()
+	})
+}
+
+// SetValidityDays sets the "validity_days" field.
+func (u *RedeemCodeUpsertOne) SetValidityDays(v int) *RedeemCodeUpsertOne {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.SetValidityDays(v)
+	})
+}
+
+// AddValidityDays adds v to the "validity_days" field.
+func (u *RedeemCodeUpsertOne) AddValidityDays(v int) *RedeemCodeUpsertOne {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.AddValidityDays(v)
+	})
+}
+
+// UpdateValidityDays sets the "validity_days" field to the value that was provided on create.
+func (u *RedeemCodeUpsertOne) UpdateValidityDays() *RedeemCodeUpsertOne {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.UpdateValidityDays()
+	})
+}
+
+// Exec executes the query.
+func (u *RedeemCodeUpsertOne) Exec(ctx context.Context) error {
+	if len(u.create.conflict) == 0 {
+		return errors.New("ent: missing options for RedeemCodeCreate.OnConflict")
+	}
+	return u.create.Exec(ctx)
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (u *RedeemCodeUpsertOne) ExecX(ctx context.Context) {
+	if err := u.create.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// Exec executes the UPSERT query and returns the inserted/updated ID.
+func (u *RedeemCodeUpsertOne) ID(ctx context.Context) (id int64, err error) {
+	node, err := u.create.Save(ctx)
+	if err != nil {
+		return id, err
+	}
+	return node.ID, nil
+}
+
+// IDX is like ID, but panics if an error occurs.
+func (u *RedeemCodeUpsertOne) IDX(ctx context.Context) int64 {
+	id, err := u.ID(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return id
+}
+
+// RedeemCodeCreateBulk is the builder for creating many RedeemCode entities in bulk.
+type RedeemCodeCreateBulk struct {
+	config
+	err      error
+	builders []*RedeemCodeCreate
+	conflict []sql.ConflictOption
+}
+
+// Save creates the RedeemCode entities in the database.
+func (_c *RedeemCodeCreateBulk) Save(ctx context.Context) ([]*RedeemCode, error) {
+	if _c.err != nil {
+		return nil, _c.err
+	}
+	specs := make([]*sqlgraph.CreateSpec, len(_c.builders))
+	nodes := make([]*RedeemCode, len(_c.builders))
+	mutators := make([]Mutator, len(_c.builders))
+	for i := range _c.builders {
+		func(i int, root context.Context) {
+			builder := _c.builders[i]
+			builder.defaults()
+			var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
+				mutation, ok := m.(*RedeemCodeMutation)
+				if !ok {
+					return nil, fmt.Errorf("unexpected mutation type %T", m)
+				}
+				if err := builder.check(); err != nil {
+					return nil, err
+				}
+				builder.mutation = mutation
+				var err error
+				nodes[i], specs[i] = builder.createSpec()
+				if i < len(mutators)-1 {
+					_, err = mutators[i+1].Mutate(root, _c.builders[i+1].mutation)
+				} else {
+					spec := &sqlgraph.BatchCreateSpec{Nodes: specs}
+					spec.OnConflict = _c.conflict
+					// Invoke the actual operation on the latest mutation in the chain.
+					if err = sqlgraph.BatchCreate(ctx, _c.driver, spec); err != nil {
+						if sqlgraph.IsConstraintError(err) {
+							err = &ConstraintError{msg: err.Error(), wrap: err}
+						}
+					}
+				}
+				if err != nil {
+					return nil, err
+				}
+				mutation.id = &nodes[i].ID
+				if specs[i].ID.Value != nil {
+					id := specs[i].ID.Value.(int64)
+					nodes[i].ID = int64(id)
+				}
+				mutation.done = true
+				return nodes[i], nil
+			})
+			for i := len(builder.hooks) - 1; i >= 0; i-- {
+				mut = builder.hooks[i](mut)
+			}
+			mutators[i] = mut
+		}(i, ctx)
+	}
+	if len(mutators) > 0 {
+		if _, err := mutators[0].Mutate(ctx, _c.builders[0].mutation); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_c *RedeemCodeCreateBulk) SaveX(ctx context.Context) []*RedeemCode {
+	v, err := _c.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (_c *RedeemCodeCreateBulk) Exec(ctx context.Context) error {
+	_, err := _c.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_c *RedeemCodeCreateBulk) ExecX(ctx context.Context) {
+	if err := _c.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// OnConflict allows configuring the `ON CONFLICT` / `ON DUPLICATE KEY` clause
+// of the `INSERT` statement. For example:
+//
+//	client.RedeemCode.CreateBulk(builders...).
+//		OnConflict(
+//			// Update the row with the new values
+//			// the was proposed for insertion.
+//			sql.ResolveWithNewValues(),
+//		).
+//		// Override some of the fields with custom
+//		// update values.
+//		Update(func(u *ent.RedeemCodeUpsert) {
+//			SetCode(v+v).
+//		}).
+//		Exec(ctx)
+func (_c *RedeemCodeCreateBulk) OnConflict(opts ...sql.ConflictOption) *RedeemCodeUpsertBulk {
+	_c.conflict = opts
+	return &RedeemCodeUpsertBulk{
+		create: _c,
+	}
+}
+
+// OnConflictColumns calls `OnConflict` and configures the columns
+// as conflict target. Using this option is equivalent to using:
+//
+//	client.RedeemCode.Create().
+//		OnConflict(sql.ConflictColumns(columns...)).
+//		Exec(ctx)
+func (_c *RedeemCodeCreateBulk) OnConflictColumns(columns ...string) *RedeemCodeUpsertBulk {
+	_c.conflict = append(_c.conflict, sql.ConflictColumns(columns...))
+	return &RedeemCodeUpsertBulk{
+		create: _c,
+	}
+}
+
+// RedeemCodeUpsertBulk is the builder for "upsert"-ing
+// a bulk of RedeemCode nodes.
+type RedeemCodeUpsertBulk struct {
+	create *RedeemCodeCreateBulk
+}
+
+// UpdateNewValues updates the mutable fields using the new values that
+// were set on create. Using this option is equivalent to using:
+//
+//	client.RedeemCode.Create().
+//		OnConflict(
+//			sql.ResolveWithNewValues(),
+//		).
+//		Exec(ctx)
+func (u *RedeemCodeUpsertBulk) UpdateNewValues() *RedeemCodeUpsertBulk {
+	u.create.conflict = append(u.create.conflict, sql.ResolveWithNewValues())
+	u.create.conflict = append(u.create.conflict, sql.ResolveWith(func(s *sql.UpdateSet) {
+		for _, b := range u.create.builders {
+			if _, exists := b.mutation.CreatedAt(); exists {
+				s.SetIgnore(redeemcode.FieldCreatedAt)
+			}
+		}
+	}))
+	return u
+}
+
+// Ignore sets each column to itself in case of conflict.
+// Using this option is equivalent to using:
+//
+//	client.RedeemCode.Create().
+//		OnConflict(sql.ResolveWithIgnore()).
+//		Exec(ctx)
+func (u *RedeemCodeUpsertBulk) Ignore() *RedeemCodeUpsertBulk {
+	u.create.conflict = append(u.create.conflict, sql.ResolveWithIgnore())
+	return u
+}
+
+// DoNothing configures the conflict_action to `DO NOTHING`.
+// Supported only by SQLite and PostgreSQL.
+func (u *RedeemCodeUpsertBulk) DoNothing() *RedeemCodeUpsertBulk {
+	u.create.conflict = append(u.create.conflict, sql.DoNothing())
+	return u
+}
+
+// Update allows overriding fields `UPDATE` values. See the RedeemCodeCreateBulk.OnConflict
+// documentation for more info.
+func (u *RedeemCodeUpsertBulk) Update(set func(*RedeemCodeUpsert)) *RedeemCodeUpsertBulk {
+	u.create.conflict = append(u.create.conflict, sql.ResolveWith(func(update *sql.UpdateSet) {
+		set(&RedeemCodeUpsert{UpdateSet: update})
+	}))
+	return u
+}
+
+// SetCode sets the "code" field.
+func (u *RedeemCodeUpsertBulk) SetCode(v string) *RedeemCodeUpsertBulk {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.SetCode(v)
+	})
+}
+
+// UpdateCode sets the "code" field to the value that was provided on create.
+func (u *RedeemCodeUpsertBulk) UpdateCode() *RedeemCodeUpsertBulk {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.UpdateCode()
+	})
+}
+
+// SetType sets the "type" field.
+func (u *RedeemCodeUpsertBulk) SetType(v string) *RedeemCodeUpsertBulk {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.SetType(v)
+	})
+}
+
+// UpdateType sets the "type" field to the value that was provided on create.
+func (u *RedeemCodeUpsertBulk) UpdateType() *RedeemCodeUpsertBulk {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.UpdateType()
+	})
+}
+
+// SetValue sets the "value" field.
+func (u *RedeemCodeUpsertBulk) SetValue(v float64) *RedeemCodeUpsertBulk {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.SetValue(v)
+	})
+}
+
+// AddValue adds v to the "value" field.
+func (u *RedeemCodeUpsertBulk) AddValue(v float64) *RedeemCodeUpsertBulk {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.AddValue(v)
+	})
+}
+
+// UpdateValue sets the "value" field to the value that was provided on create.
+func (u *RedeemCodeUpsertBulk) UpdateValue() *RedeemCodeUpsertBulk {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.UpdateValue()
+	})
+}
+
+// SetStatus sets the "status" field.
+func (u *RedeemCodeUpsertBulk) SetStatus(v string) *RedeemCodeUpsertBulk {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.SetStatus(v)
+	})
+}
+
+// UpdateStatus sets the "status" field to the value that was provided on create.
+func (u *RedeemCodeUpsertBulk) UpdateStatus() *RedeemCodeUpsertBulk {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.UpdateStatus()
+	})
+}
+
+// SetUsedBy sets the "used_by" field.
+func (u *RedeemCodeUpsertBulk) SetUsedBy(v int64) *RedeemCodeUpsertBulk {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.SetUsedBy(v)
+	})
+}
+
+// UpdateUsedBy sets the "used_by" field to the value that was provided on create.
+func (u *RedeemCodeUpsertBulk) UpdateUsedBy() *RedeemCodeUpsertBulk {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.UpdateUsedBy()
+	})
+}
+
+// ClearUsedBy clears the value of the "used_by" field.
+func (u *RedeemCodeUpsertBulk) ClearUsedBy() *RedeemCodeUpsertBulk {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.ClearUsedBy()
+	})
+}
+
+// SetUsedAt sets the "used_at" field.
+func (u *RedeemCodeUpsertBulk) SetUsedAt(v time.Time) *RedeemCodeUpsertBulk {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.SetUsedAt(v)
+	})
+}
+
+// UpdateUsedAt sets the "used_at" field to the value that was provided on create.
+func (u *RedeemCodeUpsertBulk) UpdateUsedAt() *RedeemCodeUpsertBulk {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.UpdateUsedAt()
+	})
+}
+
+// ClearUsedAt clears the value of the "used_at" field.
+func (u *RedeemCodeUpsertBulk) ClearUsedAt() *RedeemCodeUpsertBulk {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.ClearUsedAt()
+	})
+}
+
+// SetNotes sets the "notes" field.
+func (u *RedeemCodeUpsertBulk) SetNotes(v string) *RedeemCodeUpsertBulk {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.SetNotes(v)
+	})
+}
+
+// UpdateNotes sets the "notes" field to the value that was provided on create.
+func (u *RedeemCodeUpsertBulk) UpdateNotes() *RedeemCodeUpsertBulk {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.UpdateNotes()
+	})
+}
+
+// ClearNotes clears the value of the "notes" field.
+func (u *RedeemCodeUpsertBulk) ClearNotes() *RedeemCodeUpsertBulk {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.ClearNotes()
+	})
+}
+
+// SetGroupID sets the "group_id" field.
+func (u *RedeemCodeUpsertBulk) SetGroupID(v int64) *RedeemCodeUpsertBulk {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.SetGroupID(v)
+	})
+}
+
+// UpdateGroupID sets the "group_id" field to the value that was provided on create.
+func (u *RedeemCodeUpsertBulk) UpdateGroupID() *RedeemCodeUpsertBulk {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.UpdateGroupID()
+	})
+}
+
+// ClearGroupID clears the value of the "group_id" field.
+func (u *RedeemCodeUpsertBulk) ClearGroupID() *RedeemCodeUpsertBulk {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.ClearGroupID()
+	})
+}
+
+// SetValidityDays sets the "validity_days" field.
+func (u *RedeemCodeUpsertBulk) SetValidityDays(v int) *RedeemCodeUpsertBulk {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.SetValidityDays(v)
+	})
+}
+
+// AddValidityDays adds v to the "validity_days" field.
+func (u *RedeemCodeUpsertBulk) AddValidityDays(v int) *RedeemCodeUpsertBulk {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.AddValidityDays(v)
+	})
+}
+
+// UpdateValidityDays sets the "validity_days" field to the value that was provided on create.
+func (u *RedeemCodeUpsertBulk) UpdateValidityDays() *RedeemCodeUpsertBulk {
+	return u.Update(func(s *RedeemCodeUpsert) {
+		s.UpdateValidityDays()
+	})
+}
+
+// Exec executes the query.
+func (u *RedeemCodeUpsertBulk) Exec(ctx context.Context) error {
+	if u.create.err != nil {
+		return u.create.err
+	}
+	for i, b := range u.create.builders {
+		if len(b.conflict) != 0 {
+			return fmt.Errorf("ent: OnConflict was set for builder %d. Set it on the RedeemCodeCreateBulk instead", i)
+		}
+	}
+	if len(u.create.conflict) == 0 {
+		return errors.New("ent: missing options for RedeemCodeCreateBulk.OnConflict")
+	}
+	return u.create.Exec(ctx)
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (u *RedeemCodeUpsertBulk) ExecX(ctx context.Context) {
+	if err := u.create.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

backend/ent/redeemcode_delete.go

+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+	"github.com/Wei-Shaw/sub2api/ent/predicate"
+	"github.com/Wei-Shaw/sub2api/ent/redeemcode"
+)
+
+// RedeemCodeDelete is the builder for deleting a RedeemCode entity.
+type RedeemCodeDelete struct {
+	config
+	hooks    []Hook
+	mutation *RedeemCodeMutation
+}
+
+// Where appends a list predicates to the RedeemCodeDelete builder.
+func (_d *RedeemCodeDelete) Where(ps ...predicate.RedeemCode) *RedeemCodeDelete {
+	_d.mutation.Where(ps...)
+	return _d
+}
+
+// Exec executes the deletion query and returns how many vertices were deleted.
+func (_d *RedeemCodeDelete) Exec(ctx context.Context) (int, error) {
+	return withHooks(ctx, _d.sqlExec, _d.mutation, _d.hooks)
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_d *RedeemCodeDelete) ExecX(ctx context.Context) int {
+	n, err := _d.Exec(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return n
+}
+
+func (_d *RedeemCodeDelete) sqlExec(ctx context.Context) (int, error) {
+	_spec := sqlgraph.NewDeleteSpec(redeemcode.Table, sqlgraph.NewFieldSpec(redeemcode.FieldID, field.TypeInt64))
+	if ps := _d.mutation.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	affected, err := sqlgraph.DeleteNodes(ctx, _d.driver, _spec)
+	if err != nil && sqlgraph.IsConstraintError(err) {
+		err = &ConstraintError{msg: err.Error(), wrap: err}
+	}
+	_d.mutation.done = true
+	return affected, err
+}
+
+// RedeemCodeDeleteOne is the builder for deleting a single RedeemCode entity.
+type RedeemCodeDeleteOne struct {
+	_d *RedeemCodeDelete
+}
+
+// Where appends a list predicates to the RedeemCodeDelete builder.
+func (_d *RedeemCodeDeleteOne) Where(ps ...predicate.RedeemCode) *RedeemCodeDeleteOne {
+	_d._d.mutation.Where(ps...)
+	return _d
+}
+
+// Exec executes the deletion query.
+func (_d *RedeemCodeDeleteOne) Exec(ctx context.Context) error {
+	n, err := _d._d.Exec(ctx)
+	switch {
+	case err != nil:
+		return err
+	case n == 0:
+		return &NotFoundError{redeemcode.Label}
+	default:
+		return nil
+	}
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_d *RedeemCodeDeleteOne) ExecX(ctx context.Context) {
+	if err := _d.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

backend/ent/redeemcode_query.go

+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"fmt"
+	"math"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+	"github.com/Wei-Shaw/sub2api/ent/group"
+	"github.com/Wei-Shaw/sub2api/ent/predicate"
+	"github.com/Wei-Shaw/sub2api/ent/redeemcode"
+	"github.com/Wei-Shaw/sub2api/ent/user"
+)
+
+// RedeemCodeQuery is the builder for querying RedeemCode entities.
+type RedeemCodeQuery struct {
+	config
+	ctx        *QueryContext
+	order      []redeemcode.OrderOption
+	inters     []Interceptor
+	predicates []predicate.RedeemCode
+	withUser   *UserQuery
+	withGroup  *GroupQuery
+	// intermediate query (i.e. traversal path).
+	sql  *sql.Selector
+	path func(context.Context) (*sql.Selector, error)
+}
+
+// Where adds a new predicate for the RedeemCodeQuery builder.
+func (_q *RedeemCodeQuery) Where(ps ...predicate.RedeemCode) *RedeemCodeQuery {
+	_q.predicates = append(_q.predicates, ps...)
+	return _q
+}
+
+// Limit the number of records to be returned by this query.
+func (_q *RedeemCodeQuery) Limit(limit int) *RedeemCodeQuery {
+	_q.ctx.Limit = &limit
+	return _q
+}
+
+// Offset to start from.
+func (_q *RedeemCodeQuery) Offset(offset int) *RedeemCodeQuery {
+	_q.ctx.Offset = &offset
+	return _q
+}
+
+// Unique configures the query builder to filter duplicate records on query.
+// By default, unique is set to true, and can be disabled using this method.
+func (_q *RedeemCodeQuery) Unique(unique bool) *RedeemCodeQuery {
+	_q.ctx.Unique = &unique
+	return _q
+}
+
+// Order specifies how the records should be ordered.
+func (_q *RedeemCodeQuery) Order(o ...redeemcode.OrderOption) *RedeemCodeQuery {
+	_q.order = append(_q.order, o...)
+	return _q
+}
+
+// QueryUser chains the current query on the "user" edge.
+func (_q *RedeemCodeQuery) QueryUser() *UserQuery {
+	query := (&UserClient{config: _q.config}).Query()
+	query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
+		if err := _q.prepareQuery(ctx); err != nil {
+			return nil, err
+		}
+		selector := _q.sqlQuery(ctx)
+		if err := selector.Err(); err != nil {
+			return nil, err
+		}
+		step := sqlgraph.NewStep(
+			sqlgraph.From(redeemcode.Table, redeemcode.FieldID, selector),
+			sqlgraph.To(user.Table, user.FieldID),
+			sqlgraph.Edge(sqlgraph.M2O, true, redeemcode.UserTable, redeemcode.UserColumn),
+		)
+		fromU = sqlgraph.SetNeighbors(_q.driver.Dialect(), step)
+		return fromU, nil
+	}
+	return query
+}
+
+// QueryGroup chains the current query on the "group" edge.
+func (_q *RedeemCodeQuery) QueryGroup() *GroupQuery {
+	query := (&GroupClient{config: _q.config}).Query()
+	query.path = func(ctx context.Context) (fromU *sql.Selector, err error) {
+		if err := _q.prepareQuery(ctx); err != nil {
+			return nil, err
+		}
+		selector := _q.sqlQuery(ctx)
+		if err := selector.Err(); err != nil {
+			return nil, err
+		}
+		step := sqlgraph.NewStep(
+			sqlgraph.From(redeemcode.Table, redeemcode.FieldID, selector),
+			sqlgraph.To(group.Table, group.FieldID),
+			sqlgraph.Edge(sqlgraph.M2O, true, redeemcode.GroupTable, redeemcode.GroupColumn),
+		)
+		fromU = sqlgraph.SetNeighbors(_q.driver.Dialect(), step)
+		return fromU, nil
+	}
+	return query
+}
+
+// First returns the first RedeemCode entity from the query.
+// Returns a *NotFoundError when no RedeemCode was found.
+func (_q *RedeemCodeQuery) First(ctx context.Context) (*RedeemCode, error) {
+	nodes, err := _q.Limit(1).All(setContextOp(ctx, _q.ctx, ent.OpQueryFirst))
+	if err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nil, &NotFoundError{redeemcode.Label}
+	}
+	return nodes[0], nil
+}
+
+// FirstX is like First, but panics if an error occurs.
+func (_q *RedeemCodeQuery) FirstX(ctx context.Context) *RedeemCode {
+	node, err := _q.First(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return node
+}
+
+// FirstID returns the first RedeemCode ID from the query.
+// Returns a *NotFoundError when no RedeemCode ID was found.
+func (_q *RedeemCodeQuery) FirstID(ctx context.Context) (id int64, err error) {
+	var ids []int64
+	if ids, err = _q.Limit(1).IDs(setContextOp(ctx, _q.ctx, ent.OpQueryFirstID)); err != nil {
+		return
+	}
+	if len(ids) == 0 {
+		err = &NotFoundError{redeemcode.Label}
+		return
+	}
+	return ids[0], nil
+}
+
+// FirstIDX is like FirstID, but panics if an error occurs.
+func (_q *RedeemCodeQuery) FirstIDX(ctx context.Context) int64 {
+	id, err := _q.FirstID(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return id
+}
+
+// Only returns a single RedeemCode entity found by the query, ensuring it only returns one.
+// Returns a *NotSingularError when more than one RedeemCode entity is found.
+// Returns a *NotFoundError when no RedeemCode entities are found.
+func (_q *RedeemCodeQuery) Only(ctx context.Context) (*RedeemCode, error) {
+	nodes, err := _q.Limit(2).All(setContextOp(ctx, _q.ctx, ent.OpQueryOnly))
+	if err != nil {
+		return nil, err
+	}
+	switch len(nodes) {
+	case 1:
+		return nodes[0], nil
+	case 0:
+		return nil, &NotFoundError{redeemcode.Label}
+	default:
+		return nil, &NotSingularError{redeemcode.Label}
+	}
+}
+
+// OnlyX is like Only, but panics if an error occurs.
+func (_q *RedeemCodeQuery) OnlyX(ctx context.Context) *RedeemCode {
+	node, err := _q.Only(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// OnlyID is like Only, but returns the only RedeemCode ID in the query.
+// Returns a *NotSingularError when more than one RedeemCode ID is found.
+// Returns a *NotFoundError when no entities are found.
+func (_q *RedeemCodeQuery) OnlyID(ctx context.Context) (id int64, err error) {
+	var ids []int64
+	if ids, err = _q.Limit(2).IDs(setContextOp(ctx, _q.ctx, ent.OpQueryOnlyID)); err != nil {
+		return
+	}
+	switch len(ids) {
+	case 1:
+		id = ids[0]
+	case 0:
+		err = &NotFoundError{redeemcode.Label}
+	default:
+		err = &NotSingularError{redeemcode.Label}
+	}
+	return
+}
+
+// OnlyIDX is like OnlyID, but panics if an error occurs.
+func (_q *RedeemCodeQuery) OnlyIDX(ctx context.Context) int64 {
+	id, err := _q.OnlyID(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return id
+}
+
+// All executes the query and returns a list of RedeemCodes.
+func (_q *RedeemCodeQuery) All(ctx context.Context) ([]*RedeemCode, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryAll)
+	if err := _q.prepareQuery(ctx); err != nil {
+		return nil, err
+	}
+	qr := querierAll[[]*RedeemCode, *RedeemCodeQuery]()
+	return withInterceptors[[]*RedeemCode](ctx, _q, qr, _q.inters)
+}
+
+// AllX is like All, but panics if an error occurs.
+func (_q *RedeemCodeQuery) AllX(ctx context.Context) []*RedeemCode {
+	nodes, err := _q.All(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return nodes
+}
+
+// IDs executes the query and returns a list of RedeemCode IDs.
+func (_q *RedeemCodeQuery) IDs(ctx context.Context) (ids []int64, err error) {
+	if _q.ctx.Unique == nil && _q.path != nil {
+		_q.Unique(true)
+	}
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryIDs)
+	if err = _q.Select(redeemcode.FieldID).Scan(ctx, &ids); err != nil {
+		return nil, err
+	}
+	return ids, nil
+}
+
+// IDsX is like IDs, but panics if an error occurs.
+func (_q *RedeemCodeQuery) IDsX(ctx context.Context) []int64 {
+	ids, err := _q.IDs(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return ids
+}
+
+// Count returns the count of the given query.
+func (_q *RedeemCodeQuery) Count(ctx context.Context) (int, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryCount)
+	if err := _q.prepareQuery(ctx); err != nil {
+		return 0, err
+	}
+	return withInterceptors[int](ctx, _q, querierCount[*RedeemCodeQuery](), _q.inters)
+}
+
+// CountX is like Count, but panics if an error occurs.
+func (_q *RedeemCodeQuery) CountX(ctx context.Context) int {
+	count, err := _q.Count(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return count
+}
+
+// Exist returns true if the query has elements in the graph.
+func (_q *RedeemCodeQuery) Exist(ctx context.Context) (bool, error) {
+	ctx = setContextOp(ctx, _q.ctx, ent.OpQueryExist)
+	switch _, err := _q.FirstID(ctx); {
+	case IsNotFound(err):
+		return false, nil
+	case err != nil:
+		return false, fmt.Errorf("ent: check existence: %w", err)
+	default:
+		return true, nil
+	}
+}
+
+// ExistX is like Exist, but panics if an error occurs.
+func (_q *RedeemCodeQuery) ExistX(ctx context.Context) bool {
+	exist, err := _q.Exist(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return exist
+}
+
+// Clone returns a duplicate of the RedeemCodeQuery builder, including all associated steps. It can be
+// used to prepare common query builders and use them differently after the clone is made.
+func (_q *RedeemCodeQuery) Clone() *RedeemCodeQuery {
+	if _q == nil {
+		return nil
+	}
+	return &RedeemCodeQuery{
+		config:     _q.config,
+		ctx:        _q.ctx.Clone(),
+		order:      append([]redeemcode.OrderOption{}, _q.order...),
+		inters:     append([]Interceptor{}, _q.inters...),
+		predicates: append([]predicate.RedeemCode{}, _q.predicates...),
+		withUser:   _q.withUser.Clone(),
+		withGroup:  _q.withGroup.Clone(),
+		// clone intermediate query.
+		sql:  _q.sql.Clone(),
+		path: _q.path,
+	}
+}
+
+// WithUser tells the query-builder to eager-load the nodes that are connected to
+// the "user" edge. The optional arguments are used to configure the query builder of the edge.
+func (_q *RedeemCodeQuery) WithUser(opts ...func(*UserQuery)) *RedeemCodeQuery {
+	query := (&UserClient{config: _q.config}).Query()
+	for _, opt := range opts {
+		opt(query)
+	}
+	_q.withUser = query
+	return _q
+}
+
+// WithGroup tells the query-builder to eager-load the nodes that are connected to
+// the "group" edge. The optional arguments are used to configure the query builder of the edge.
+func (_q *RedeemCodeQuery) WithGroup(opts ...func(*GroupQuery)) *RedeemCodeQuery {
+	query := (&GroupClient{config: _q.config}).Query()
+	for _, opt := range opts {
+		opt(query)
+	}
+	_q.withGroup = query
+	return _q
+}
+
+// GroupBy is used to group vertices by one or more fields/columns.
+// It is often used with aggregate functions, like: count, max, mean, min, sum.
+//
+// Example:
+//
+//	var v []struct {
+//		Code string `json:"code,omitempty"`
+//		Count int `json:"count,omitempty"`
+//	}
+//
+//	client.RedeemCode.Query().
+//		GroupBy(redeemcode.FieldCode).
+//		Aggregate(ent.Count()).
+//		Scan(ctx, &v)
+func (_q *RedeemCodeQuery) GroupBy(field string, fields ...string) *RedeemCodeGroupBy {
+	_q.ctx.Fields = append([]string{field}, fields...)
+	grbuild := &RedeemCodeGroupBy{build: _q}
+	grbuild.flds = &_q.ctx.Fields
+	grbuild.label = redeemcode.Label
+	grbuild.scan = grbuild.Scan
+	return grbuild
+}
+
+// Select allows the selection one or more fields/columns for the given query,
+// instead of selecting all fields in the entity.
+//
+// Example:
+//
+//	var v []struct {
+//		Code string `json:"code,omitempty"`
+//	}
+//
+//	client.RedeemCode.Query().
+//		Select(redeemcode.FieldCode).
+//		Scan(ctx, &v)
+func (_q *RedeemCodeQuery) Select(fields ...string) *RedeemCodeSelect {
+	_q.ctx.Fields = append(_q.ctx.Fields, fields...)
+	sbuild := &RedeemCodeSelect{RedeemCodeQuery: _q}
+	sbuild.label = redeemcode.Label
+	sbuild.flds, sbuild.scan = &_q.ctx.Fields, sbuild.Scan
+	return sbuild
+}
+
+// Aggregate returns a RedeemCodeSelect configured with the given aggregations.
+func (_q *RedeemCodeQuery) Aggregate(fns ...AggregateFunc) *RedeemCodeSelect {
+	return _q.Select().Aggregate(fns...)
+}
+
+func (_q *RedeemCodeQuery) prepareQuery(ctx context.Context) error {
+	for _, inter := range _q.inters {
+		if inter == nil {
+			return fmt.Errorf("ent: uninitialized interceptor (forgotten import ent/runtime?)")
+		}
+		if trv, ok := inter.(Traverser); ok {
+			if err := trv.Traverse(ctx, _q); err != nil {
+				return err
+			}
+		}
+	}
+	for _, f := range _q.ctx.Fields {
+		if !redeemcode.ValidColumn(f) {
+			return &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+		}
+	}
+	if _q.path != nil {
+		prev, err := _q.path(ctx)
+		if err != nil {
+			return err
+		}
+		_q.sql = prev
+	}
+	return nil
+}
+
+func (_q *RedeemCodeQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*RedeemCode, error) {
+	var (
+		nodes       = []*RedeemCode{}
+		_spec       = _q.querySpec()
+		loadedTypes = [2]bool{
+			_q.withUser != nil,
+			_q.withGroup != nil,
+		}
+	)
+	_spec.ScanValues = func(columns []string) ([]any, error) {
+		return (*RedeemCode).scanValues(nil, columns)
+	}
+	_spec.Assign = func(columns []string, values []any) error {
+		node := &RedeemCode{config: _q.config}
+		nodes = append(nodes, node)
+		node.Edges.loadedTypes = loadedTypes
+		return node.assignValues(columns, values)
+	}
+	for i := range hooks {
+		hooks[i](ctx, _spec)
+	}
+	if err := sqlgraph.QueryNodes(ctx, _q.driver, _spec); err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nodes, nil
+	}
+	if query := _q.withUser; query != nil {
+		if err := _q.loadUser(ctx, query, nodes, nil,
+			func(n *RedeemCode, e *User) { n.Edges.User = e }); err != nil {
+			return nil, err
+		}
+	}
+	if query := _q.withGroup; query != nil {
+		if err := _q.loadGroup(ctx, query, nodes, nil,
+			func(n *RedeemCode, e *Group) { n.Edges.Group = e }); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+func (_q *RedeemCodeQuery) loadUser(ctx context.Context, query *UserQuery, nodes []*RedeemCode, init func(*RedeemCode), assign func(*RedeemCode, *User)) error {
+	ids := make([]int64, 0, len(nodes))
+	nodeids := make(map[int64][]*RedeemCode)
+	for i := range nodes {
+		if nodes[i].UsedBy == nil {
+			continue
+		}
+		fk := *nodes[i].UsedBy
+		if _, ok := nodeids[fk]; !ok {
+			ids = append(ids, fk)
+		}
+		nodeids[fk] = append(nodeids[fk], nodes[i])
+	}
+	if len(ids) == 0 {
+		return nil
+	}
+	query.Where(user.IDIn(ids...))
+	neighbors, err := query.All(ctx)
+	if err != nil {
+		return err
+	}
+	for _, n := range neighbors {
+		nodes, ok := nodeids[n.ID]
+		if !ok {
+			return fmt.Errorf(`unexpected foreign-key "used_by" returned %v`, n.ID)
+		}
+		for i := range nodes {
+			assign(nodes[i], n)
+		}
+	}
+	return nil
+}
+func (_q *RedeemCodeQuery) loadGroup(ctx context.Context, query *GroupQuery, nodes []*RedeemCode, init func(*RedeemCode), assign func(*RedeemCode, *Group)) error {
+	ids := make([]int64, 0, len(nodes))
+	nodeids := make(map[int64][]*RedeemCode)
+	for i := range nodes {
+		if nodes[i].GroupID == nil {
+			continue
+		}
+		fk := *nodes[i].GroupID
+		if _, ok := nodeids[fk]; !ok {
+			ids = append(ids, fk)
+		}
+		nodeids[fk] = append(nodeids[fk], nodes[i])
+	}
+	if len(ids) == 0 {
+		return nil
+	}
+	query.Where(group.IDIn(ids...))
+	neighbors, err := query.All(ctx)
+	if err != nil {
+		return err
+	}
+	for _, n := range neighbors {
+		nodes, ok := nodeids[n.ID]
+		if !ok {
+			return fmt.Errorf(`unexpected foreign-key "group_id" returned %v`, n.ID)
+		}
+		for i := range nodes {
+			assign(nodes[i], n)
+		}
+	}
+	return nil
+}
+
+func (_q *RedeemCodeQuery) sqlCount(ctx context.Context) (int, error) {
+	_spec := _q.querySpec()
+	_spec.Node.Columns = _q.ctx.Fields
+	if len(_q.ctx.Fields) > 0 {
+		_spec.Unique = _q.ctx.Unique != nil && *_q.ctx.Unique
+	}
+	return sqlgraph.CountNodes(ctx, _q.driver, _spec)
+}
+
+func (_q *RedeemCodeQuery) querySpec() *sqlgraph.QuerySpec {
+	_spec := sqlgraph.NewQuerySpec(redeemcode.Table, redeemcode.Columns, sqlgraph.NewFieldSpec(redeemcode.FieldID, field.TypeInt64))
+	_spec.From = _q.sql
+	if unique := _q.ctx.Unique; unique != nil {
+		_spec.Unique = *unique
+	} else if _q.path != nil {
+		_spec.Unique = true
+	}
+	if fields := _q.ctx.Fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, redeemcode.FieldID)
+		for i := range fields {
+			if fields[i] != redeemcode.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, fields[i])
+			}
+		}
+		if _q.withUser != nil {
+			_spec.Node.AddColumnOnce(redeemcode.FieldUsedBy)
+		}
+		if _q.withGroup != nil {
+			_spec.Node.AddColumnOnce(redeemcode.FieldGroupID)
+		}
+	}
+	if ps := _q.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if limit := _q.ctx.Limit; limit != nil {
+		_spec.Limit = *limit
+	}
+	if offset := _q.ctx.Offset; offset != nil {
+		_spec.Offset = *offset
+	}
+	if ps := _q.order; len(ps) > 0 {
+		_spec.Order = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	return _spec
+}
+
+func (_q *RedeemCodeQuery) sqlQuery(ctx context.Context) *sql.Selector {
+	builder := sql.Dialect(_q.driver.Dialect())
+	t1 := builder.Table(redeemcode.Table)
+	columns := _q.ctx.Fields
+	if len(columns) == 0 {
+		columns = redeemcode.Columns
+	}
+	selector := builder.Select(t1.Columns(columns...)...).From(t1)
+	if _q.sql != nil {
+		selector = _q.sql
+		selector.Select(selector.Columns(columns...)...)
+	}
+	if _q.ctx.Unique != nil && *_q.ctx.Unique {
+		selector.Distinct()
+	}
+	for _, p := range _q.predicates {
+		p(selector)
+	}
+	for _, p := range _q.order {
+		p(selector)
+	}
+	if offset := _q.ctx.Offset; offset != nil {
+		// limit is mandatory for offset clause. We start
+		// with default value, and override it below if needed.
+		selector.Offset(*offset).Limit(math.MaxInt32)
+	}
+	if limit := _q.ctx.Limit; limit != nil {
+		selector.Limit(*limit)
+	}
+	return selector
+}
+
+// RedeemCodeGroupBy is the group-by builder for RedeemCode entities.
+type RedeemCodeGroupBy struct {
+	selector
+	build *RedeemCodeQuery
+}
+
+// Aggregate adds the given aggregation functions to the group-by query.
+func (_g *RedeemCodeGroupBy) Aggregate(fns ...AggregateFunc) *RedeemCodeGroupBy {
+	_g.fns = append(_g.fns, fns...)
+	return _g
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (_g *RedeemCodeGroupBy) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, _g.build.ctx, ent.OpQueryGroupBy)
+	if err := _g.build.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*RedeemCodeQuery, *RedeemCodeGroupBy](ctx, _g.build, _g, _g.build.inters, v)
+}
+
+func (_g *RedeemCodeGroupBy) sqlScan(ctx context.Context, root *RedeemCodeQuery, v any) error {
+	selector := root.sqlQuery(ctx).Select()
+	aggregation := make([]string, 0, len(_g.fns))
+	for _, fn := range _g.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	if len(selector.SelectedColumns()) == 0 {
+		columns := make([]string, 0, len(*_g.flds)+len(_g.fns))
+		for _, f := range *_g.flds {
+			columns = append(columns, selector.C(f))
+		}
+		columns = append(columns, aggregation...)
+		selector.Select(columns...)
+	}
+	selector.GroupBy(selector.Columns(*_g.flds...)...)
+	if err := selector.Err(); err != nil {
+		return err
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := _g.build.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}
+
+// RedeemCodeSelect is the builder for selecting fields of RedeemCode entities.
+type RedeemCodeSelect struct {
+	*RedeemCodeQuery
+	selector
+}
+
+// Aggregate adds the given aggregation functions to the selector query.
+func (_s *RedeemCodeSelect) Aggregate(fns ...AggregateFunc) *RedeemCodeSelect {
+	_s.fns = append(_s.fns, fns...)
+	return _s
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (_s *RedeemCodeSelect) Scan(ctx context.Context, v any) error {
+	ctx = setContextOp(ctx, _s.ctx, ent.OpQuerySelect)
+	if err := _s.prepareQuery(ctx); err != nil {
+		return err
+	}
+	return scanWithInterceptors[*RedeemCodeQuery, *RedeemCodeSelect](ctx, _s.RedeemCodeQuery, _s, _s.inters, v)
+}
+
+func (_s *RedeemCodeSelect) sqlScan(ctx context.Context, root *RedeemCodeQuery, v any) error {
+	selector := root.sqlQuery(ctx)
+	aggregation := make([]string, 0, len(_s.fns))
+	for _, fn := range _s.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	switch n := len(*_s.selector.flds); {
+	case n == 0 && len(aggregation) > 0:
+		selector.Select(aggregation...)
+	case n != 0 && len(aggregation) > 0:
+		selector.AppendSelect(aggregation...)
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := _s.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}

backend/ent/redeemcode_update.go

+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+	"github.com/Wei-Shaw/sub2api/ent/group"
+	"github.com/Wei-Shaw/sub2api/ent/predicate"
+	"github.com/Wei-Shaw/sub2api/ent/redeemcode"
+	"github.com/Wei-Shaw/sub2api/ent/user"
+)
+
+// RedeemCodeUpdate is the builder for updating RedeemCode entities.
+type RedeemCodeUpdate struct {
+	config
+	hooks    []Hook
+	mutation *RedeemCodeMutation
+}
+
+// Where appends a list predicates to the RedeemCodeUpdate builder.
+func (_u *RedeemCodeUpdate) Where(ps ...predicate.RedeemCode) *RedeemCodeUpdate {
+	_u.mutation.Where(ps...)
+	return _u
+}
+
+// SetCode sets the "code" field.
+func (_u *RedeemCodeUpdate) SetCode(v string) *RedeemCodeUpdate {
+	_u.mutation.SetCode(v)
+	return _u
+}
+
+// SetNillableCode sets the "code" field if the given value is not nil.
+func (_u *RedeemCodeUpdate) SetNillableCode(v *string) *RedeemCodeUpdate {
+	if v != nil {
+		_u.SetCode(*v)
+	}
+	return _u
+}
+
+// SetType sets the "type" field.
+func (_u *RedeemCodeUpdate) SetType(v string) *RedeemCodeUpdate {
+	_u.mutation.SetType(v)
+	return _u
+}
+
+// SetNillableType sets the "type" field if the given value is not nil.
+func (_u *RedeemCodeUpdate) SetNillableType(v *string) *RedeemCodeUpdate {
+	if v != nil {
+		_u.SetType(*v)
+	}
+	return _u
+}
+
+// SetValue sets the "value" field.
+func (_u *RedeemCodeUpdate) SetValue(v float64) *RedeemCodeUpdate {
+	_u.mutation.ResetValue()
+	_u.mutation.SetValue(v)
+	return _u
+}
+
+// SetNillableValue sets the "value" field if the given value is not nil.
+func (_u *RedeemCodeUpdate) SetNillableValue(v *float64) *RedeemCodeUpdate {
+	if v != nil {
+		_u.SetValue(*v)
+	}
+	return _u
+}
+
+// AddValue adds value to the "value" field.
+func (_u *RedeemCodeUpdate) AddValue(v float64) *RedeemCodeUpdate {
+	_u.mutation.AddValue(v)
+	return _u
+}
+
+// SetStatus sets the "status" field.
+func (_u *RedeemCodeUpdate) SetStatus(v string) *RedeemCodeUpdate {
+	_u.mutation.SetStatus(v)
+	return _u
+}
+
+// SetNillableStatus sets the "status" field if the given value is not nil.
+func (_u *RedeemCodeUpdate) SetNillableStatus(v *string) *RedeemCodeUpdate {
+	if v != nil {
+		_u.SetStatus(*v)
+	}
+	return _u
+}
+
+// SetUsedBy sets the "used_by" field.
+func (_u *RedeemCodeUpdate) SetUsedBy(v int64) *RedeemCodeUpdate {
+	_u.mutation.SetUsedBy(v)
+	return _u
+}
+
+// SetNillableUsedBy sets the "used_by" field if the given value is not nil.
+func (_u *RedeemCodeUpdate) SetNillableUsedBy(v *int64) *RedeemCodeUpdate {
+	if v != nil {
+		_u.SetUsedBy(*v)
+	}
+	return _u
+}
+
+// ClearUsedBy clears the value of the "used_by" field.
+func (_u *RedeemCodeUpdate) ClearUsedBy() *RedeemCodeUpdate {
+	_u.mutation.ClearUsedBy()
+	return _u
+}
+
+// SetUsedAt sets the "used_at" field.
+func (_u *RedeemCodeUpdate) SetUsedAt(v time.Time) *RedeemCodeUpdate {
+	_u.mutation.SetUsedAt(v)
+	return _u
+}
+
+// SetNillableUsedAt sets the "used_at" field if the given value is not nil.
+func (_u *RedeemCodeUpdate) SetNillableUsedAt(v *time.Time) *RedeemCodeUpdate {
+	if v != nil {
+		_u.SetUsedAt(*v)
+	}
+	return _u
+}
+
+// ClearUsedAt clears the value of the "used_at" field.
+func (_u *RedeemCodeUpdate) ClearUsedAt() *RedeemCodeUpdate {
+	_u.mutation.ClearUsedAt()
+	return _u
+}
+
+// SetNotes sets the "notes" field.
+func (_u *RedeemCodeUpdate) SetNotes(v string) *RedeemCodeUpdate {
+	_u.mutation.SetNotes(v)
+	return _u
+}
+
+// SetNillableNotes sets the "notes" field if the given value is not nil.
+func (_u *RedeemCodeUpdate) SetNillableNotes(v *string) *RedeemCodeUpdate {
+	if v != nil {
+		_u.SetNotes(*v)
+	}
+	return _u
+}
+
+// ClearNotes clears the value of the "notes" field.
+func (_u *RedeemCodeUpdate) ClearNotes() *RedeemCodeUpdate {
+	_u.mutation.ClearNotes()
+	return _u
+}
+
+// SetGroupID sets the "group_id" field.
+func (_u *RedeemCodeUpdate) SetGroupID(v int64) *RedeemCodeUpdate {
+	_u.mutation.SetGroupID(v)
+	return _u
+}
+
+// SetNillableGroupID sets the "group_id" field if the given value is not nil.
+func (_u *RedeemCodeUpdate) SetNillableGroupID(v *int64) *RedeemCodeUpdate {
+	if v != nil {
+		_u.SetGroupID(*v)
+	}
+	return _u
+}
+
+// ClearGroupID clears the value of the "group_id" field.
+func (_u *RedeemCodeUpdate) ClearGroupID() *RedeemCodeUpdate {
+	_u.mutation.ClearGroupID()
+	return _u
+}
+
+// SetValidityDays sets the "validity_days" field.
+func (_u *RedeemCodeUpdate) SetValidityDays(v int) *RedeemCodeUpdate {
+	_u.mutation.ResetValidityDays()
+	_u.mutation.SetValidityDays(v)
+	return _u
+}
+
+// SetNillableValidityDays sets the "validity_days" field if the given value is not nil.
+func (_u *RedeemCodeUpdate) SetNillableValidityDays(v *int) *RedeemCodeUpdate {
+	if v != nil {
+		_u.SetValidityDays(*v)
+	}
+	return _u
+}
+
+// AddValidityDays adds value to the "validity_days" field.
+func (_u *RedeemCodeUpdate) AddValidityDays(v int) *RedeemCodeUpdate {
+	_u.mutation.AddValidityDays(v)
+	return _u
+}
+
+// SetUserID sets the "user" edge to the User entity by ID.
+func (_u *RedeemCodeUpdate) SetUserID(id int64) *RedeemCodeUpdate {
+	_u.mutation.SetUserID(id)
+	return _u
+}
+
+// SetNillableUserID sets the "user" edge to the User entity by ID if the given value is not nil.
+func (_u *RedeemCodeUpdate) SetNillableUserID(id *int64) *RedeemCodeUpdate {
+	if id != nil {
+		_u = _u.SetUserID(*id)
+	}
+	return _u
+}
+
+// SetUser sets the "user" edge to the User entity.
+func (_u *RedeemCodeUpdate) SetUser(v *User) *RedeemCodeUpdate {
+	return _u.SetUserID(v.ID)
+}
+
+// SetGroup sets the "group" edge to the Group entity.
+func (_u *RedeemCodeUpdate) SetGroup(v *Group) *RedeemCodeUpdate {
+	return _u.SetGroupID(v.ID)
+}
+
+// Mutation returns the RedeemCodeMutation object of the builder.
+func (_u *RedeemCodeUpdate) Mutation() *RedeemCodeMutation {
+	return _u.mutation
+}
+
+// ClearUser clears the "user" edge to the User entity.
+func (_u *RedeemCodeUpdate) ClearUser() *RedeemCodeUpdate {
+	_u.mutation.ClearUser()
+	return _u
+}
+
+// ClearGroup clears the "group" edge to the Group entity.
+func (_u *RedeemCodeUpdate) ClearGroup() *RedeemCodeUpdate {
+	_u.mutation.ClearGroup()
+	return _u
+}
+
+// Save executes the query and returns the number of nodes affected by the update operation.
+func (_u *RedeemCodeUpdate) Save(ctx context.Context) (int, error) {
+	return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_u *RedeemCodeUpdate) SaveX(ctx context.Context) int {
+	affected, err := _u.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return affected
+}
+
+// Exec executes the query.
+func (_u *RedeemCodeUpdate) Exec(ctx context.Context) error {
+	_, err := _u.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_u *RedeemCodeUpdate) ExecX(ctx context.Context) {
+	if err := _u.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (_u *RedeemCodeUpdate) check() error {
+	if v, ok := _u.mutation.Code(); ok {
+		if err := redeemcode.CodeValidator(v); err != nil {
+			return &ValidationError{Name: "code", err: fmt.Errorf(`ent: validator failed for field "RedeemCode.code": %w`, err)}
+		}
+	}
+	if v, ok := _u.mutation.GetType(); ok {
+		if err := redeemcode.TypeValidator(v); err != nil {
+			return &ValidationError{Name: "type", err: fmt.Errorf(`ent: validator failed for field "RedeemCode.type": %w`, err)}
+		}
+	}
+	if v, ok := _u.mutation.Status(); ok {
+		if err := redeemcode.StatusValidator(v); err != nil {
+			return &ValidationError{Name: "status", err: fmt.Errorf(`ent: validator failed for field "RedeemCode.status": %w`, err)}
+		}
+	}
+	return nil
+}
+
+func (_u *RedeemCodeUpdate) sqlSave(ctx context.Context) (_node int, err error) {
+	if err := _u.check(); err != nil {
+		return _node, err
+	}
+	_spec := sqlgraph.NewUpdateSpec(redeemcode.Table, redeemcode.Columns, sqlgraph.NewFieldSpec(redeemcode.FieldID, field.TypeInt64))
+	if ps := _u.mutation.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := _u.mutation.Code(); ok {
+		_spec.SetField(redeemcode.FieldCode, field.TypeString, value)
+	}
+	if value, ok := _u.mutation.GetType(); ok {
+		_spec.SetField(redeemcode.FieldType, field.TypeString, value)
+	}
+	if value, ok := _u.mutation.Value(); ok {
+		_spec.SetField(redeemcode.FieldValue, field.TypeFloat64, value)
+	}
+	if value, ok := _u.mutation.AddedValue(); ok {
+		_spec.AddField(redeemcode.FieldValue, field.TypeFloat64, value)
+	}
+	if value, ok := _u.mutation.Status(); ok {
+		_spec.SetField(redeemcode.FieldStatus, field.TypeString, value)
+	}
+	if value, ok := _u.mutation.UsedAt(); ok {
+		_spec.SetField(redeemcode.FieldUsedAt, field.TypeTime, value)
+	}
+	if _u.mutation.UsedAtCleared() {
+		_spec.ClearField(redeemcode.FieldUsedAt, field.TypeTime)
+	}
+	if value, ok := _u.mutation.Notes(); ok {
+		_spec.SetField(redeemcode.FieldNotes, field.TypeString, value)
+	}
+	if _u.mutation.NotesCleared() {
+		_spec.ClearField(redeemcode.FieldNotes, field.TypeString)
+	}
+	if value, ok := _u.mutation.ValidityDays(); ok {
+		_spec.SetField(redeemcode.FieldValidityDays, field.TypeInt, value)
+	}
+	if value, ok := _u.mutation.AddedValidityDays(); ok {
+		_spec.AddField(redeemcode.FieldValidityDays, field.TypeInt, value)
+	}
+	if _u.mutation.UserCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: true,
+			Table:   redeemcode.UserTable,
+			Columns: []string{redeemcode.UserColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt64),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.UserIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: true,
+			Table:   redeemcode.UserTable,
+			Columns: []string{redeemcode.UserColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt64),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	if _u.mutation.GroupCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: true,
+			Table:   redeemcode.GroupTable,
+			Columns: []string{redeemcode.GroupColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(group.FieldID, field.TypeInt64),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.GroupIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: true,
+			Table:   redeemcode.GroupTable,
+			Columns: []string{redeemcode.GroupColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(group.FieldID, field.TypeInt64),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	if _node, err = sqlgraph.UpdateNodes(ctx, _u.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{redeemcode.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return 0, err
+	}
+	_u.mutation.done = true
+	return _node, nil
+}
+
+// RedeemCodeUpdateOne is the builder for updating a single RedeemCode entity.
+type RedeemCodeUpdateOne struct {
+	config
+	fields   []string
+	hooks    []Hook
+	mutation *RedeemCodeMutation
+}
+
+// SetCode sets the "code" field.
+func (_u *RedeemCodeUpdateOne) SetCode(v string) *RedeemCodeUpdateOne {
+	_u.mutation.SetCode(v)
+	return _u
+}
+
+// SetNillableCode sets the "code" field if the given value is not nil.
+func (_u *RedeemCodeUpdateOne) SetNillableCode(v *string) *RedeemCodeUpdateOne {
+	if v != nil {
+		_u.SetCode(*v)
+	}
+	return _u
+}
+
+// SetType sets the "type" field.
+func (_u *RedeemCodeUpdateOne) SetType(v string) *RedeemCodeUpdateOne {
+	_u.mutation.SetType(v)
+	return _u
+}
+
+// SetNillableType sets the "type" field if the given value is not nil.
+func (_u *RedeemCodeUpdateOne) SetNillableType(v *string) *RedeemCodeUpdateOne {
+	if v != nil {
+		_u.SetType(*v)
+	}
+	return _u
+}
+
+// SetValue sets the "value" field.
+func (_u *RedeemCodeUpdateOne) SetValue(v float64) *RedeemCodeUpdateOne {
+	_u.mutation.ResetValue()
+	_u.mutation.SetValue(v)
+	return _u
+}
+
+// SetNillableValue sets the "value" field if the given value is not nil.
+func (_u *RedeemCodeUpdateOne) SetNillableValue(v *float64) *RedeemCodeUpdateOne {
+	if v != nil {
+		_u.SetValue(*v)
+	}
+	return _u
+}
+
+// AddValue adds value to the "value" field.
+func (_u *RedeemCodeUpdateOne) AddValue(v float64) *RedeemCodeUpdateOne {
+	_u.mutation.AddValue(v)
+	return _u
+}
+
+// SetStatus sets the "status" field.
+func (_u *RedeemCodeUpdateOne) SetStatus(v string) *RedeemCodeUpdateOne {
+	_u.mutation.SetStatus(v)
+	return _u
+}
+
+// SetNillableStatus sets the "status" field if the given value is not nil.
+func (_u *RedeemCodeUpdateOne) SetNillableStatus(v *string) *RedeemCodeUpdateOne {
+	if v != nil {
+		_u.SetStatus(*v)
+	}
+	return _u
+}
+
+// SetUsedBy sets the "used_by" field.
+func (_u *RedeemCodeUpdateOne) SetUsedBy(v int64) *RedeemCodeUpdateOne {
+	_u.mutation.SetUsedBy(v)
+	return _u
+}
+
+// SetNillableUsedBy sets the "used_by" field if the given value is not nil.
+func (_u *RedeemCodeUpdateOne) SetNillableUsedBy(v *int64) *RedeemCodeUpdateOne {
+	if v != nil {
+		_u.SetUsedBy(*v)
+	}
+	return _u
+}
+
+// ClearUsedBy clears the value of the "used_by" field.
+func (_u *RedeemCodeUpdateOne) ClearUsedBy() *RedeemCodeUpdateOne {
+	_u.mutation.ClearUsedBy()
+	return _u
+}
+
+// SetUsedAt sets the "used_at" field.
+func (_u *RedeemCodeUpdateOne) SetUsedAt(v time.Time) *RedeemCodeUpdateOne {
+	_u.mutation.SetUsedAt(v)
+	return _u
+}
+
+// SetNillableUsedAt sets the "used_at" field if the given value is not nil.
+func (_u *RedeemCodeUpdateOne) SetNillableUsedAt(v *time.Time) *RedeemCodeUpdateOne {
+	if v != nil {
+		_u.SetUsedAt(*v)
+	}
+	return _u
+}
+
+// ClearUsedAt clears the value of the "used_at" field.
+func (_u *RedeemCodeUpdateOne) ClearUsedAt() *RedeemCodeUpdateOne {
+	_u.mutation.ClearUsedAt()
+	return _u
+}
+
+// SetNotes sets the "notes" field.
+func (_u *RedeemCodeUpdateOne) SetNotes(v string) *RedeemCodeUpdateOne {
+	_u.mutation.SetNotes(v)
+	return _u
+}
+
+// SetNillableNotes sets the "notes" field if the given value is not nil.
+func (_u *RedeemCodeUpdateOne) SetNillableNotes(v *string) *RedeemCodeUpdateOne {
+	if v != nil {
+		_u.SetNotes(*v)
+	}
+	return _u
+}
+
+// ClearNotes clears the value of the "notes" field.
+func (_u *RedeemCodeUpdateOne) ClearNotes() *RedeemCodeUpdateOne {
+	_u.mutation.ClearNotes()
+	return _u
+}
+
+// SetGroupID sets the "group_id" field.
+func (_u *RedeemCodeUpdateOne) SetGroupID(v int64) *RedeemCodeUpdateOne {
+	_u.mutation.SetGroupID(v)
+	return _u
+}
+
+// SetNillableGroupID sets the "group_id" field if the given value is not nil.
+func (_u *RedeemCodeUpdateOne) SetNillableGroupID(v *int64) *RedeemCodeUpdateOne {
+	if v != nil {
+		_u.SetGroupID(*v)
+	}
+	return _u
+}
+
+// ClearGroupID clears the value of the "group_id" field.
+func (_u *RedeemCodeUpdateOne) ClearGroupID() *RedeemCodeUpdateOne {
+	_u.mutation.ClearGroupID()
+	return _u
+}
+
+// SetValidityDays sets the "validity_days" field.
+func (_u *RedeemCodeUpdateOne) SetValidityDays(v int) *RedeemCodeUpdateOne {
+	_u.mutation.ResetValidityDays()
+	_u.mutation.SetValidityDays(v)
+	return _u
+}
+
+// SetNillableValidityDays sets the "validity_days" field if the given value is not nil.
+func (_u *RedeemCodeUpdateOne) SetNillableValidityDays(v *int) *RedeemCodeUpdateOne {
+	if v != nil {
+		_u.SetValidityDays(*v)
+	}
+	return _u
+}
+
+// AddValidityDays adds value to the "validity_days" field.
+func (_u *RedeemCodeUpdateOne) AddValidityDays(v int) *RedeemCodeUpdateOne {
+	_u.mutation.AddValidityDays(v)
+	return _u
+}
+
+// SetUserID sets the "user" edge to the User entity by ID.
+func (_u *RedeemCodeUpdateOne) SetUserID(id int64) *RedeemCodeUpdateOne {
+	_u.mutation.SetUserID(id)
+	return _u
+}
+
+// SetNillableUserID sets the "user" edge to the User entity by ID if the given value is not nil.
+func (_u *RedeemCodeUpdateOne) SetNillableUserID(id *int64) *RedeemCodeUpdateOne {
+	if id != nil {
+		_u = _u.SetUserID(*id)
+	}
+	return _u
+}
+
+// SetUser sets the "user" edge to the User entity.
+func (_u *RedeemCodeUpdateOne) SetUser(v *User) *RedeemCodeUpdateOne {
+	return _u.SetUserID(v.ID)
+}
+
+// SetGroup sets the "group" edge to the Group entity.
+func (_u *RedeemCodeUpdateOne) SetGroup(v *Group) *RedeemCodeUpdateOne {
+	return _u.SetGroupID(v.ID)
+}
+
+// Mutation returns the RedeemCodeMutation object of the builder.
+func (_u *RedeemCodeUpdateOne) Mutation() *RedeemCodeMutation {
+	return _u.mutation
+}
+
+// ClearUser clears the "user" edge to the User entity.
+func (_u *RedeemCodeUpdateOne) ClearUser() *RedeemCodeUpdateOne {
+	_u.mutation.ClearUser()
+	return _u
+}
+
+// ClearGroup clears the "group" edge to the Group entity.
+func (_u *RedeemCodeUpdateOne) ClearGroup() *RedeemCodeUpdateOne {
+	_u.mutation.ClearGroup()
+	return _u
+}
+
+// Where appends a list predicates to the RedeemCodeUpdate builder.
+func (_u *RedeemCodeUpdateOne) Where(ps ...predicate.RedeemCode) *RedeemCodeUpdateOne {
+	_u.mutation.Where(ps...)
+	return _u
+}
+
+// Select allows selecting one or more fields (columns) of the returned entity.
+// The default is selecting all fields defined in the entity schema.
+func (_u *RedeemCodeUpdateOne) Select(field string, fields ...string) *RedeemCodeUpdateOne {
+	_u.fields = append([]string{field}, fields...)
+	return _u
+}
+
+// Save executes the query and returns the updated RedeemCode entity.
+func (_u *RedeemCodeUpdateOne) Save(ctx context.Context) (*RedeemCode, error) {
+	return withHooks(ctx, _u.sqlSave, _u.mutation, _u.hooks)
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (_u *RedeemCodeUpdateOne) SaveX(ctx context.Context) *RedeemCode {
+	node, err := _u.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// Exec executes the query on the entity.
+func (_u *RedeemCodeUpdateOne) Exec(ctx context.Context) error {
+	_, err := _u.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (_u *RedeemCodeUpdateOne) ExecX(ctx context.Context) {
+	if err := _u.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (_u *RedeemCodeUpdateOne) check() error {
+	if v, ok := _u.mutation.Code(); ok {
+		if err := redeemcode.CodeValidator(v); err != nil {
+			return &ValidationError{Name: "code", err: fmt.Errorf(`ent: validator failed for field "RedeemCode.code": %w`, err)}
+		}
+	}
+	if v, ok := _u.mutation.GetType(); ok {
+		if err := redeemcode.TypeValidator(v); err != nil {
+			return &ValidationError{Name: "type", err: fmt.Errorf(`ent: validator failed for field "RedeemCode.type": %w`, err)}
+		}
+	}
+	if v, ok := _u.mutation.Status(); ok {
+		if err := redeemcode.StatusValidator(v); err != nil {
+			return &ValidationError{Name: "status", err: fmt.Errorf(`ent: validator failed for field "RedeemCode.status": %w`, err)}
+		}
+	}
+	return nil
+}
+
+func (_u *RedeemCodeUpdateOne) sqlSave(ctx context.Context) (_node *RedeemCode, err error) {
+	if err := _u.check(); err != nil {
+		return _node, err
+	}
+	_spec := sqlgraph.NewUpdateSpec(redeemcode.Table, redeemcode.Columns, sqlgraph.NewFieldSpec(redeemcode.FieldID, field.TypeInt64))
+	id, ok := _u.mutation.ID()
+	if !ok {
+		return nil, &ValidationError{Name: "id", err: errors.New(`ent: missing "RedeemCode.id" for update`)}
+	}
+	_spec.Node.ID.Value = id
+	if fields := _u.fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, redeemcode.FieldID)
+		for _, f := range fields {
+			if !redeemcode.ValidColumn(f) {
+				return nil, &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+			}
+			if f != redeemcode.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, f)
+			}
+		}
+	}
+	if ps := _u.mutation.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if value, ok := _u.mutation.Code(); ok {
+		_spec.SetField(redeemcode.FieldCode, field.TypeString, value)
+	}
+	if value, ok := _u.mutation.GetType(); ok {
+		_spec.SetField(redeemcode.FieldType, field.TypeString, value)
+	}
+	if value, ok := _u.mutation.Value(); ok {
+		_spec.SetField(redeemcode.FieldValue, field.TypeFloat64, value)
+	}
+	if value, ok := _u.mutation.AddedValue(); ok {
+		_spec.AddField(redeemcode.FieldValue, field.TypeFloat64, value)
+	}
+	if value, ok := _u.mutation.Status(); ok {
+		_spec.SetField(redeemcode.FieldStatus, field.TypeString, value)
+	}
+	if value, ok := _u.mutation.UsedAt(); ok {
+		_spec.SetField(redeemcode.FieldUsedAt, field.TypeTime, value)
+	}
+	if _u.mutation.UsedAtCleared() {
+		_spec.ClearField(redeemcode.FieldUsedAt, field.TypeTime)
+	}
+	if value, ok := _u.mutation.Notes(); ok {
+		_spec.SetField(redeemcode.FieldNotes, field.TypeString, value)
+	}
+	if _u.mutation.NotesCleared() {
+		_spec.ClearField(redeemcode.FieldNotes, field.TypeString)
+	}
+	if value, ok := _u.mutation.ValidityDays(); ok {
+		_spec.SetField(redeemcode.FieldValidityDays, field.TypeInt, value)
+	}
+	if value, ok := _u.mutation.AddedValidityDays(); ok {
+		_spec.AddField(redeemcode.FieldValidityDays, field.TypeInt, value)
+	}
+	if _u.mutation.UserCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: true,
+			Table:   redeemcode.UserTable,
+			Columns: []string{redeemcode.UserColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt64),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.UserIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: true,
+			Table:   redeemcode.UserTable,
+			Columns: []string{redeemcode.UserColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(user.FieldID, field.TypeInt64),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	if _u.mutation.GroupCleared() {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: true,
+			Table:   redeemcode.GroupTable,
+			Columns: []string{redeemcode.GroupColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(group.FieldID, field.TypeInt64),
+			},
+		}
+		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
+	}
+	if nodes := _u.mutation.GroupIDs(); len(nodes) > 0 {
+		edge := &sqlgraph.EdgeSpec{
+			Rel:     sqlgraph.M2O,
+			Inverse: true,
+			Table:   redeemcode.GroupTable,
+			Columns: []string{redeemcode.GroupColumn},
+			Bidi:    false,
+			Target: &sqlgraph.EdgeTarget{
+				IDSpec: sqlgraph.NewFieldSpec(group.FieldID, field.TypeInt64),
+			},
+		}
+		for _, k := range nodes {
+			edge.Target.Nodes = append(edge.Target.Nodes, k)
+		}
+		_spec.Edges.Add = append(_spec.Edges.Add, edge)
+	}
+	_node = &RedeemCode{config: _u.config}
+	_spec.Assign = _node.assignValues
+	_spec.ScanValues = _node.scanValues
+	if err = sqlgraph.UpdateNode(ctx, _u.driver, _spec); err != nil {
+		if _, ok := err.(*sqlgraph.NotFoundError); ok {
+			err = &NotFoundError{redeemcode.Label}
+		} else if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{msg: err.Error(), wrap: err}
+		}
+		return nil, err
+	}
+	_u.mutation.done = true
+	return _node, nil
+}