59269dc1c1
问题：软删除的记录仍占用唯一约束位置，导致删后无法重建同名/同邮箱/同订阅 修复方案：使用 PostgreSQL 部分唯一索引（WHERE deleted_at IS NULL） - User.email: 移除字段级 Unique()，改用部分唯一索引 - Group.name: 移除字段级 Unique()，改用部分唯一索引 - UserSubscription.(user_id, group_id): 移除组合唯一索引，改用部分唯一索引 - ApiKey.key: 保留普通唯一约束（安全考虑，已删除的 Key 不应重用） 安全性： - 应用层已有 ExistsByXxx 检查，自动过滤软删除记录 - 数据库层部分唯一索引提供最后一道防线 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
118 lines
3.0 KiB
Go
118 lines
3.0 KiB
Go
package schema
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import (
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"time"
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"github.com/Wei-Shaw/sub2api/ent/schema/mixins"
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"github.com/Wei-Shaw/sub2api/internal/service"
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"entgo.io/ent"
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"entgo.io/ent/dialect"
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"entgo.io/ent/dialect/entsql"
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"entgo.io/ent/schema"
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"entgo.io/ent/schema/edge"
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"entgo.io/ent/schema/field"
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"entgo.io/ent/schema/index"
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)
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// UserSubscription holds the schema definition for the UserSubscription entity.
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type UserSubscription struct {
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ent.Schema
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}
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func (UserSubscription) Annotations() []schema.Annotation {
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return []schema.Annotation{
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entsql.Annotation{Table: "user_subscriptions"},
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}
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}
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func (UserSubscription) Mixin() []ent.Mixin {
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return []ent.Mixin{
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mixins.TimeMixin{},
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mixins.SoftDeleteMixin{},
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}
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}
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func (UserSubscription) Fields() []ent.Field {
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return []ent.Field{
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field.Int64("user_id"),
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field.Int64("group_id"),
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field.Time("starts_at").
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SchemaType(map[string]string{dialect.Postgres: "timestamptz"}),
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field.Time("expires_at").
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SchemaType(map[string]string{dialect.Postgres: "timestamptz"}),
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field.String("status").
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MaxLen(20).
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Default(service.SubscriptionStatusActive),
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field.Time("daily_window_start").
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Optional().
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Nillable().
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SchemaType(map[string]string{dialect.Postgres: "timestamptz"}),
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field.Time("weekly_window_start").
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Optional().
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Nillable().
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SchemaType(map[string]string{dialect.Postgres: "timestamptz"}),
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field.Time("monthly_window_start").
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Optional().
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Nillable().
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SchemaType(map[string]string{dialect.Postgres: "timestamptz"}),
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field.Float("daily_usage_usd").
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SchemaType(map[string]string{dialect.Postgres: "decimal(20,10)"}).
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Default(0),
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field.Float("weekly_usage_usd").
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SchemaType(map[string]string{dialect.Postgres: "decimal(20,10)"}).
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Default(0),
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field.Float("monthly_usage_usd").
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SchemaType(map[string]string{dialect.Postgres: "decimal(20,10)"}).
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Default(0),
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field.Int64("assigned_by").
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Optional().
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Nillable(),
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field.Time("assigned_at").
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Default(time.Now).
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SchemaType(map[string]string{dialect.Postgres: "timestamptz"}),
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field.String("notes").
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Optional().
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Nillable().
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SchemaType(map[string]string{dialect.Postgres: "text"}),
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}
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}
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func (UserSubscription) Edges() []ent.Edge {
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return []ent.Edge{
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edge.From("user", User.Type).
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Ref("subscriptions").
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Field("user_id").
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Unique().
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Required(),
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edge.From("group", Group.Type).
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Ref("subscriptions").
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Field("group_id").
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Unique().
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Required(),
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edge.From("assigned_by_user", User.Type).
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Ref("assigned_subscriptions").
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Field("assigned_by").
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Unique(),
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edge.To("usage_logs", UsageLog.Type),
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}
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}
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func (UserSubscription) Indexes() []ent.Index {
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return []ent.Index{
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index.Fields("user_id"),
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index.Fields("group_id"),
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index.Fields("status"),
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index.Fields("expires_at"),
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index.Fields("assigned_by"),
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// 唯一约束通过部分索引实现（WHERE deleted_at IS NULL），支持软删除后重新订阅
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// 见迁移文件 016_soft_delete_partial_unique_indexes.sql
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index.Fields("user_id", "group_id"),
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index.Fields("deleted_at"),
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}
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}
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