Files
sub2api/backend/ent/schema/usage_log.go
Ethan0x0000 51547fa216 feat(db): add upstream_model column to usage_logs
Add nullable VARCHAR(100) column to record the actual model sent to upstream providers when model mapping is applied. NULL means no mapping — the requested model was used as-is.

Includes migration, concurrent index for aggregation queries, Ent schema regeneration, and migration README correction (forward-only runner, not goose).
2026-03-17 19:25:17 +08:00

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// Package schema 定义 Ent ORM 的数据库 schema。
package schema
import (
"time"
"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"
)
// UsageLog 定义使用日志实体的 schema。
//
// 使用日志记录每次 API 调用的详细信息,包括 token 使用量、成本计算等。
// 这是一个只追加的表,不支持更新和删除。
type UsageLog struct {
ent.Schema
}
// Annotations 返回 schema 的注解配置。
func (UsageLog) Annotations() []schema.Annotation {
return []schema.Annotation{
entsql.Annotation{Table: "usage_logs"},
}
}
// Fields 定义使用日志实体的所有字段。
func (UsageLog) Fields() []ent.Field {
return []ent.Field{
// 关联字段
field.Int64("user_id"),
field.Int64("api_key_id"),
field.Int64("account_id"),
field.String("request_id").
MaxLen(64).
NotEmpty(),
field.String("model").
MaxLen(100).
NotEmpty(),
// UpstreamModel stores the actual upstream model name when model mapping
// is applied. NULL means no mapping — the requested model was used as-is.
field.String("upstream_model").
MaxLen(100).
Optional().
Nillable(),
field.Int64("group_id").
Optional().
Nillable(),
field.Int64("subscription_id").
Optional().
Nillable(),
// Token 计数字段
field.Int("input_tokens").
Default(0),
field.Int("output_tokens").
Default(0),
field.Int("cache_creation_tokens").
Default(0),
field.Int("cache_read_tokens").
Default(0),
field.Int("cache_creation_5m_tokens").
Default(0),
field.Int("cache_creation_1h_tokens").
Default(0),
// 成本字段
field.Float("input_cost").
Default(0).
SchemaType(map[string]string{dialect.Postgres: "decimal(20,10)"}),
field.Float("output_cost").
Default(0).
SchemaType(map[string]string{dialect.Postgres: "decimal(20,10)"}),
field.Float("cache_creation_cost").
Default(0).
SchemaType(map[string]string{dialect.Postgres: "decimal(20,10)"}),
field.Float("cache_read_cost").
Default(0).
SchemaType(map[string]string{dialect.Postgres: "decimal(20,10)"}),
field.Float("total_cost").
Default(0).
SchemaType(map[string]string{dialect.Postgres: "decimal(20,10)"}),
field.Float("actual_cost").
Default(0).
SchemaType(map[string]string{dialect.Postgres: "decimal(20,10)"}),
field.Float("rate_multiplier").
Default(1).
SchemaType(map[string]string{dialect.Postgres: "decimal(10,4)"}),
// account_rate_multiplier: 账号计费倍率快照NULL 表示按 1.0 处理)
field.Float("account_rate_multiplier").
Optional().
Nillable().
SchemaType(map[string]string{dialect.Postgres: "decimal(10,4)"}),
// 其他字段
field.Int8("billing_type").
Default(0),
field.Bool("stream").
Default(false),
field.Int("duration_ms").
Optional().
Nillable(),
field.Int("first_token_ms").
Optional().
Nillable(),
field.String("user_agent").
MaxLen(512).
Optional().
Nillable(),
field.String("ip_address").
MaxLen(45). // 支持 IPv6
Optional().
Nillable(),
// 图片生成字段(仅 gemini-3-pro-image 等图片模型使用)
field.Int("image_count").
Default(0),
field.String("image_size").
MaxLen(10).
Optional().
Nillable(),
// 媒体类型字段sora 使用)
field.String("media_type").
MaxLen(16).
Optional().
Nillable(),
// Cache TTL Override 标记(管理员强制替换了缓存 TTL 计费)
field.Bool("cache_ttl_overridden").
Default(false),
// 时间戳(只有 created_at日志不可修改
field.Time("created_at").
Default(time.Now).
Immutable().
SchemaType(map[string]string{dialect.Postgres: "timestamptz"}),
}
}
// Edges 定义使用日志实体的关联关系。
func (UsageLog) Edges() []ent.Edge {
return []ent.Edge{
edge.From("user", User.Type).
Ref("usage_logs").
Field("user_id").
Required().
Unique(),
edge.From("api_key", APIKey.Type).
Ref("usage_logs").
Field("api_key_id").
Required().
Unique(),
edge.From("account", Account.Type).
Ref("usage_logs").
Field("account_id").
Required().
Unique(),
edge.From("group", Group.Type).
Ref("usage_logs").
Field("group_id").
Unique(),
edge.From("subscription", UserSubscription.Type).
Ref("usage_logs").
Field("subscription_id").
Unique(),
}
}
// Indexes 定义数据库索引,优化查询性能。
func (UsageLog) Indexes() []ent.Index {
return []ent.Index{
index.Fields("user_id"),
index.Fields("api_key_id"),
index.Fields("account_id"),
index.Fields("group_id"),
index.Fields("subscription_id"),
index.Fields("created_at"),
index.Fields("model"),
index.Fields("request_id"),
// 复合索引用于时间范围查询
index.Fields("user_id", "created_at"),
index.Fields("api_key_id", "created_at"),
// 分组维度时间范围查询(线上由 SQL 迁移创建 group_id IS NOT NULL 的部分索引)
index.Fields("group_id", "created_at"),
}
}