Files
sub2api/backend/ent/schema/promo_code.go
long d2fc14fb97 feat: 实现注册优惠码功能
- 支持创建/编辑/删除优惠码,设置赠送金额和使用限制
  - 注册页面实时验证优惠码并显示赠送金额
  - 支持 URL 参数自动填充 (?promo=CODE)
  - 添加优惠码验证接口速率限制
  - 使用数据库行锁防止并发超限
  - 新增后台优惠码管理页面,支持复制注册链接
2026-01-10 13:14:35 +08:00

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package schema
import (
"time"
"github.com/Wei-Shaw/sub2api/internal/service"
"entgo.io/ent"
"entgo.io/ent/dialect"
"entgo.io/ent/dialect/entsql"
"entgo.io/ent/schema"
"entgo.io/ent/schema/edge"
"entgo.io/ent/schema/field"
"entgo.io/ent/schema/index"
)
// PromoCode holds the schema definition for the PromoCode entity.
//
// 注册优惠码:用户注册时使用,可获得赠送余额
// 与 RedeemCode 不同PromoCode 支持多次使用(有使用次数限制)
//
// 删除策略:硬删除
type PromoCode struct {
ent.Schema
}
func (PromoCode) Annotations() []schema.Annotation {
return []schema.Annotation{
entsql.Annotation{Table: "promo_codes"},
}
}
func (PromoCode) Fields() []ent.Field {
return []ent.Field{
field.String("code").
MaxLen(32).
NotEmpty().
Unique().
Comment("优惠码"),
field.Float("bonus_amount").
SchemaType(map[string]string{dialect.Postgres: "decimal(20,8)"}).
Default(0).
Comment("赠送余额金额"),
field.Int("max_uses").
Default(0).
Comment("最大使用次数0表示无限制"),
field.Int("used_count").
Default(0).
Comment("已使用次数"),
field.String("status").
MaxLen(20).
Default(service.PromoCodeStatusActive).
Comment("状态: active, disabled"),
field.Time("expires_at").
Optional().
Nillable().
SchemaType(map[string]string{dialect.Postgres: "timestamptz"}).
Comment("过期时间null表示永不过期"),
field.String("notes").
Optional().
Nillable().
SchemaType(map[string]string{dialect.Postgres: "text"}).
Comment("备注"),
field.Time("created_at").
Immutable().
Default(time.Now).
SchemaType(map[string]string{dialect.Postgres: "timestamptz"}),
field.Time("updated_at").
Default(time.Now).
UpdateDefault(time.Now).
SchemaType(map[string]string{dialect.Postgres: "timestamptz"}),
}
}
func (PromoCode) Edges() []ent.Edge {
return []ent.Edge{
edge.To("usage_records", PromoCodeUsage.Type),
}
}
func (PromoCode) Indexes() []ent.Index {
return []ent.Index{
// code 字段已在 Fields() 中声明 Unique(),无需重复索引
index.Fields("status"),
index.Fields("expires_at"),
}
}