473f3b6f3e
- Why: - Avoid introducing `gorm.io/datatypes` for a single field. - Align with existing pattern (`ChannelInfo`, `Properties`) using `Scanner`/`Valuer`. - Fix runtime error when drivers return JSON as string. - What: - Introduced `JSONValue` (based on `json.RawMessage`) implementing `sql.Scanner` and `driver.Valuer`, with `MarshalJSON`/`UnmarshalJSON` to preserve raw JSON in API. - Updated `PrefillGroup.Items` to use `JSONValue` with `gorm:"type:json"`. - Localized comments in `model/prefill_group.go` to Chinese. - Impact: - Resolves “unsupported Scan, storing driver.Value type string into type *json.RawMessage”. - Works with MySQL/Postgres/SQLite whether JSON is returned as `[]byte` or `string`. - API and DB schema remain unchanged; no `go.mod` changes; lints pass. Files changed: - model/prefill_group.go
127 lines
3.8 KiB
Go
127 lines
3.8 KiB
Go
package model
|
||
|
||
import (
|
||
"encoding/json"
|
||
"database/sql/driver"
|
||
"one-api/common"
|
||
|
||
"gorm.io/gorm"
|
||
)
|
||
|
||
// PrefillGroup 用于存储可复用的“组”信息，例如模型组、标签组、端点组等。
|
||
// Name 字段保持唯一，用于在前端下拉框中展示。
|
||
// Type 字段用于区分组的类别，可选值如：model、tag、endpoint。
|
||
// Items 字段使用 JSON 数组保存对应类型的字符串集合，示例：
|
||
// ["gpt-4o", "gpt-3.5-turbo"]
|
||
// 设计遵循 3NF，避免冗余，提供灵活扩展能力。
|
||
|
||
// JSONValue 基于 json.RawMessage 实现，支持从数据库的 []byte 和 string 两种类型读取
|
||
type JSONValue json.RawMessage
|
||
|
||
// Value 实现 driver.Valuer 接口，用于数据库写入
|
||
func (j JSONValue) Value() (driver.Value, error) {
|
||
if j == nil {
|
||
return nil, nil
|
||
}
|
||
return []byte(j), nil
|
||
}
|
||
|
||
// Scan 实现 sql.Scanner 接口，兼容不同驱动返回的类型
|
||
func (j *JSONValue) Scan(value interface{}) error {
|
||
switch v := value.(type) {
|
||
case nil:
|
||
*j = nil
|
||
return nil
|
||
case []byte:
|
||
// 拷贝底层字节，避免保留底层缓冲区
|
||
b := make([]byte, len(v))
|
||
copy(b, v)
|
||
*j = JSONValue(b)
|
||
return nil
|
||
case string:
|
||
*j = JSONValue([]byte(v))
|
||
return nil
|
||
default:
|
||
// 其他类型尝试序列化为 JSON
|
||
b, err := json.Marshal(v)
|
||
if err != nil {
|
||
return err
|
||
}
|
||
*j = JSONValue(b)
|
||
return nil
|
||
}
|
||
}
|
||
|
||
// MarshalJSON 确保在对外编码时与 json.RawMessage 行为一致
|
||
func (j JSONValue) MarshalJSON() ([]byte, error) {
|
||
if j == nil {
|
||
return []byte("null"), nil
|
||
}
|
||
return j, nil
|
||
}
|
||
|
||
// UnmarshalJSON 确保在对外解码时与 json.RawMessage 行为一致
|
||
func (j *JSONValue) UnmarshalJSON(data []byte) error {
|
||
if data == nil {
|
||
*j = nil
|
||
return nil
|
||
}
|
||
b := make([]byte, len(data))
|
||
copy(b, data)
|
||
*j = JSONValue(b)
|
||
return nil
|
||
}
|
||
|
||
type PrefillGroup struct {
|
||
Id int `json:"id"`
|
||
Name string `json:"name" gorm:"size:64;not null;uniqueIndex:uk_prefill_name,where:deleted_at IS NULL"`
|
||
Type string `json:"type" gorm:"size:32;index;not null"`
|
||
Items JSONValue `json:"items" gorm:"type:json"`
|
||
Description string `json:"description,omitempty" gorm:"type:varchar(255)"`
|
||
CreatedTime int64 `json:"created_time" gorm:"bigint"`
|
||
UpdatedTime int64 `json:"updated_time" gorm:"bigint"`
|
||
DeletedAt gorm.DeletedAt `json:"-" gorm:"index"`
|
||
}
|
||
|
||
// Insert 新建组
|
||
func (g *PrefillGroup) Insert() error {
|
||
now := common.GetTimestamp()
|
||
g.CreatedTime = now
|
||
g.UpdatedTime = now
|
||
return DB.Create(g).Error
|
||
}
|
||
|
||
// IsPrefillGroupNameDuplicated 检查组名称是否重复（排除自身 ID）
|
||
func IsPrefillGroupNameDuplicated(id int, name string) (bool, error) {
|
||
if name == "" {
|
||
return false, nil
|
||
}
|
||
var cnt int64
|
||
err := DB.Model(&PrefillGroup{}).Where("name = ? AND id <> ?", name, id).Count(&cnt).Error
|
||
return cnt > 0, err
|
||
}
|
||
|
||
// Update 更新组
|
||
func (g *PrefillGroup) Update() error {
|
||
g.UpdatedTime = common.GetTimestamp()
|
||
return DB.Save(g).Error
|
||
}
|
||
|
||
// DeleteByID 根据 ID 删除组
|
||
func DeletePrefillGroupByID(id int) error {
|
||
return DB.Delete(&PrefillGroup{}, id).Error
|
||
}
|
||
|
||
// GetAllPrefillGroups 获取全部组，可按类型过滤（为空则返回全部）
|
||
func GetAllPrefillGroups(groupType string) ([]*PrefillGroup, error) {
|
||
var groups []*PrefillGroup
|
||
query := DB.Model(&PrefillGroup{})
|
||
if groupType != "" {
|
||
query = query.Where("type = ?", groupType)
|
||
}
|
||
if err := query.Order("updated_time DESC").Find(&groups).Error; err != nil {
|
||
return nil, err
|
||
}
|
||
return groups, nil
|
||
}
|