带有回调的Yii2中的Db事务

//User model
public function changeBalance(UserBalanceHistory $balance)
{
    $balance->balance = $this->balance;
    $balance->user_id = $this->id;
    $this->balance    = $this->getBalance() + $balance->getDelta();

    $transaction = Yii::$app->db->beginTransaction();
    try {
        if ($balance->save() && $this->save()) {
            $transaction->commit();
            return true;
        }
    } catch (Exception $e) {
        Yii::error($e->getMessage());
    }

    $transaction->rollBack();
}

我应经常使用数据库事务来保存数据完整性.但是像上面那样处理数据库事务需要很多代码行,所以我创建了以下函数来动员我的代码：

function dbTransaction(callable $callback)
{
    $transaction = Yii::$app->db->beginTransaction();

    try {
        //if callback returns true than commit transaction
        if (call_user_func($callback)) {
            $transaction->commit();
            Yii::trace('Transaction wrapper success');
        }
    } catch (Exception $e) {
        $transaction->rollBack();
        throw $e;
    }
    $transaction->rollBack();
}

有了这个功能,我可以处理这样的事务：

//User model
public function changeBalance(UserBalanceHistory $balance)
{
    dbTransaction(
        function () use ($balance) {
            $balance->balance = $this->balance;
            $balance->user_id = $this->id;
            $this->balance    = $this->getBalance() + $balance->getDelta();

            return $balance->save() && $this->save();
        }
    );
}

如您所见,第二种方式非常适合使用交易.但是在这一点上,我不确定dbTransaction函数是否正常工作或者也不正确？代码审查和备注指出了潜在的问题.谢谢