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nex/backend/internal/config/models.go
lanyuanxiaoyao 1522c87c74 fix: 修复 statsRepo 并发竞态条件,使用 upsert 保证原子性
- 使用 GORM clause.OnConflict 替代事务包装
- Record 和 BatchUpdate 方法改用 upsert 模式
- 修复 UsageStats 的 GORM struct tag,确保 AutoMigrate 创建正确的 UNIQUE 约束
- 更新 usage-statistics spec 以反映 upsert 操作

MySQL 并发测试验证:10 并发调用 → request_count = 10
2026-04-23 15:54:56 +08:00

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package config
import (
"time"
)
// Provider 供应商模型
type Provider struct {
ID string `gorm:"primaryKey" json:"id"`
Name string `gorm:"not null" json:"name"`
APIKey string `gorm:"not null" json:"api_key"`
BaseURL string `gorm:"not null" json:"base_url"`
Protocol string `gorm:"column:protocol;default:'openai'" json:"protocol"`
Enabled bool `gorm:"default:true" json:"enabled"`
CreatedAt time.Time `json:"created_at"`
UpdatedAt time.Time `json:"updated_at"`
Models []Model `gorm:"foreignKey:ProviderID;constraint:OnDelete:CASCADE" json:"models,omitempty"`
}
// Model 模型配置id 为 UUID 自动生成UNIQUE(provider_id, model_name)
type Model struct {
ID string `gorm:"primaryKey" json:"id"`
ProviderID string `gorm:"not null;index;uniqueIndex:idx_provider_model" json:"provider_id"`
ModelName string `gorm:"not null;index;uniqueIndex:idx_provider_model" json:"model_name"`
Enabled bool `gorm:"default:true" json:"enabled"`
CreatedAt time.Time `json:"created_at"`
}
// UsageStats 用量统计
type UsageStats struct {
ID uint `gorm:"primaryKey;autoIncrement" json:"id"`
ProviderID string `gorm:"not null;index;uniqueIndex:idx_provider_model_date" json:"provider_id"`
ModelName string `gorm:"not null;index;uniqueIndex:idx_provider_model_date" json:"model_name"`
RequestCount int `gorm:"default:0" json:"request_count"`
Date time.Time `gorm:"type:date;not null;uniqueIndex:idx_provider_model_date" json:"date"`
}
// TableName 指定表名
func (Provider) TableName() string {
return "providers"
}
func (Model) TableName() string {
return "models"
}
func (UsageStats) TableName() string {
return "usage_stats"
}