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我想覆盖一个名为confirmAction 的FOS 用户操作。下面是我的动作↓</p> 

/**
 * Receive the confirmation token from user email provider, login the user.
 *
 * @param Request $request
 * @param string  $token
 *
 * @return Response
 */
public function confirmAction(Request $request, $token)
{
    $utilisateur = $this->getDoctrine()
        ->getRepository(Utilisateur::class)
        ->findOneByConfirmationToken($token);

    $utilisateur->setMyAttribute(null);
    $em = $this->getDoctrine()->getManager();
    $em->persist($utilisateur);
    $em->flush();

    return parent::confirmAction($request, $token);}

如果我不覆盖构造函数，我会收到错误消息，说变量没有像 $userManager、$eventDispatcher 那样声明...

Type error: Argument 1 passed to FOS\UserBundle\Controller\RegistrationController::__construct() must implement interface Symfony\Component\EventDispatcher\EventDispatcherInterface, none given, called in /var/www/html/linguanomad/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Controller/ControllerResolver.php on line 195

如果我将构造函数重写为： public function __construct(){}

我收到错误消息：在 null 上调用成员函数 findUserByConfirmationToken()

我应该重写构造函数吗？我该怎么做？

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