控制器外發生異常時事務不回滾

Question

控制器外發生異常時事務不回滾

register 函數內部使用的方法是在 trait 中實現的，所有的 side 方法在出錯時都會拋出異常。 但不幸的是，當在控制器外部的一個側方法中拋出異常時（例如：findRefererIdFromRequest() 或 findRefererIdFromRequest() 或 collectDataFromRequest()），數據庫返回操作不會發生並且由 create 創建的新用戶方法仍在數據庫中，無法回滾

class RegisterController extends Controller
{
    use AuthenticationTrait;

    public function register(RegisterRequest $request)
    {

        DB::beginTransaction();

        try {

            # Collect data from request
            $dataCollect = $this->collectDataFromRequest($request);

            # Create a new user
            $this->createUser($dataCollect);

            # Find ReferrerID from the request by invitation code
            $referrerId = $this->findRefererIdFromRequest($request);

            # Put ReferrerId into the user profile
            $this->putReferrerId($referrerId);

            DB::commit();

            # Return success response
            return response()->json($this->registerSuccessResponse());
        } catch (\Exception $ex) {
            DB::rollBack();
            return response()->json(['status' => false, 'message' => $ex->getMessage()], 422);
        }
    }
}

trait AuthenticationTrait
{

    protected function collectDataFromRequest($request)
    {
        try {
            return collect($request->only([
                'name', 'email', 'password', 'country_id', 'language_id'
            ]));
        } catch (\Throwable $th) {
            throw new CustomException(__("The system is unable to collect input data."));
        }
    }



    protected function createUser($dataCollect)
    {
        try {

            # Generate hashed password
            $hashedPassword = bcrypt($dataCollect->get('password'));
            $dataCollect->put('password', $hashedPassword);

            # Create a new user
            $this->user = $this->userRepository->create($dataCollect->toArray());

        } catch (\Exception $th) {
            throw new CustomException(__('Sorry! The system is unable to create a new user account.'));
        }
    }



    protected function findRefererIdFromRequest($request)
    {
        # I have intentionally thrown an exception
        throw new CustomException(__("The invitation code is invalid."));
    }



    protected function putReferrerId($referrerId)
    {
        # Update user profile and put referrerId into the user profile
        $this->user->update(['referrer_id' => $referrerId]);

    }

    // Other funtions ... 

   }

    

Answer 1

我找到了問題的答案。

仔細一看，原來數據庫引擎是默認值MyISAM，不支持事務。

為了使事務可控，必須將數據庫引擎設置為InnoDB。

轉到數據庫配置文件並將數據庫引擎更改為 InnoDB

配置/數據庫.php

 'connections' => [
    'mysql' => [
        'driver' => 'mysql',
        'url' => env('DATABASE_URL'),
        'host' => env('DB_HOST', '127.0.0.1'),
        'port' => env('DB_PORT', '3306'),
        'database' => env('DB_DATABASE', 'forge'),
        'username' => env('DB_USERNAME', 'forge'),
        'password' => env('DB_PASSWORD', ''),
        'unix_socket' => env('DB_SOCKET', ''),
        'charset' => 'utf8mb4',
        'collation' => 'utf8mb4_unicode_ci',
        'prefix' => '',
        'prefix_indexes' => true,
        'strict' => true,

        // 'engine' => "MyISAM",
        'engine' => "InnoDB",

        'options' => extension_loaded('pdo_mysql') ? array_filter([
            PDO::MYSQL_ATTR_SSL_CA => env('MYSQL_ATTR_SSL_CA'),
        ]) : [],
    ],
 ]

Answer 2

首先將您的數據庫事務放在 try 塊之外，如果 invitation_code 為真，則關於特征函數中的異常處理，只需返回它即可。 特征中是否也存在此方法“getUserIdByInvitationCode”？