db.Exec("PRAGMA foreign_keys = ON")
		}
	}

	if err != nil {
		return
	}

	if debug := os.Getenv("DEBUG"); debug == "true" {
		db.Logger = db.Logger.LogMode(logger.Info)
	} else if debug == "false" {
		db.Logger = db.Logger.LogMode(logger.Silent)
	}

	return
}

func RunMigrations() {
	var err error

		traceErrStr:  traceErrStr,
	}
}

type logger struct {
	Writer
	Config
	infoStr, warnStr, errStr            string
	traceStr, traceErrStr, traceWarnStr string
}

// LogMode log mode
func (l *logger) LogMode(level LogLevel) Interface {
	newlogger := *l
	newlogger.LogLevel = level
	return &newlogger
}

// Info print info

	return db.Session(&Session{Context: ctx})
}

// Debug start debug mode
func (db *DB) Debug() (tx *DB) {
	tx = db.getInstance()
	return tx.Session(&Session{
		Logger: db.Logger.LogMode(logger.Info),
	})
}

// Set store value with key into current db instance's context
func (db *DB) Set(key string, value interface{}) *DB {
	tx := db.getInstance()
	tx.Statement.Settings.Store(key, value)

	if err != nil {
		t.Errorf("Open err:%v", err)
	}
	if debug := os.Getenv("DEBUG"); debug == "true" {
		db.Logger = db.Logger.LogMode(logger.Info)
	} else if debug == "false" {
		db.Logger = db.Logger.LogMode(logger.Silent)
	}

	type Object1 struct {
		ID uint
	}
	type Object2 struct {
		ID     uint
		Field1 int `gorm:"type:int8"`
	}