first commit

internal/mysqlmodel/model.go

@@ -0,0 +1,60 @@
+package mysqlmodel
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"git.lzcwy.cn/zhengchiliu/zt-closet-manage-backend/pkg/setting"
+	"gorm.io/driver/mysql"
+	"gorm.io/gorm"
+	"gorm.io/plugin/soft_delete"
+)
+
+type Model struct {
+	ID        int64                 `gorm:"column:id;primaryKey"` // 主键ID
+	CreatedAt int64                 `gorm:"column:created_at"`    // 创建时间
+	UpdatedAt int64                 `gorm:"column:updated_at"`    // 更新时间
+	DeletedAt soft_delete.DeletedAt `gorm:"column:deleted_at"`    // 删除时间
+	CreatedBy int64                 `gorm:"column:created_by"`    // 创建人
+	UpdatedBy int64                 `gorm:"column:updated_by"`    // 更新人
+	DeletedBy int64                 `gorm:"column:deleted_by"`    // 删除人
+}
+
+// NewMysqlEngine 根据配置创建 GORM MySQL 连接并完成连接池初始化。
+func NewMysqlEngine(mysqlSetting *setting.MysqlSettingS) (*gorm.DB, error) {
+	s := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?charset=utf8mb4&parseTime=True&loc=Local&timeout=10s&readTimeout=10s&writeTimeout=10s",
+		mysqlSetting.UserName,
+		mysqlSetting.Password,
+		mysqlSetting.Host,
+		mysqlSetting.Port,
+		mysqlSetting.DBName,
+	)
+	db, err := gorm.Open(mysql.Open(s), &gorm.Config{})
+	if err != nil {
+		return nil, err
+	}
+
+	sqlDB, err := db.DB()
+	if err != nil {
+		return nil, err
+	}
+
+	sqlDB.SetMaxIdleConns(mysqlSetting.MaxIdleConns)
+	sqlDB.SetMaxOpenConns(mysqlSetting.MaxOpenConns)
+	sqlDB.SetConnMaxLifetime(time.Duration(mysqlSetting.ConnMaxLifeTime) * time.Second)
+	sqlDB.SetConnMaxIdleTime(time.Duration(mysqlSetting.ConnMaxIdleTime) * time.Second)
+
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+	if err := sqlDB.PingContext(ctx); err != nil {
+		return nil, err
+	}
+	return db, nil
+}
+
+// AutoMigrateAdminTables 仅迁移管理后台自建的表（admin_users）。
+// 业务表结构由业务服务的 golang-migrate 维护，管理后台不做 AutoMigrate，避免误改业务表。
+func AutoMigrateAdminTables(db *gorm.DB) error {
+	return db.AutoMigrate(&AdminUser{})
+}