Symfony api-平台不会附加到事件侦听器

Question

api-platform.com的事件不会附加到我的侦听器。我尝试了他们的事件矩阵中的几个组合，但它仍然不能触发。

# services.yml
user_access_listener:
    class:      AppBundle\Event\Listener\UserAccessListener
    arguments: [ "@security.authorization_checker" ]
    tags:
        - { name: kernel.event_listener, event: kernel.view, method: onKernelView }

下面是我的监听器类

 namespace AppBundle\Event\Listener;

use UserBundle\Entity\User;
use Symfony\Component\Security\Core\Exception\AccessDeniedException;
use Symfony\Component\HttpKernel\Event\GetResponseForControllerResultEvent;
use Symfony\Component\Security\Core\Authorization\AuthorizationCheckerInterface;

class UserAccessListener
{
    /**
     * @var AuthorizationCheckerInterface
     */
    private $authorizationChecker;

    /**
     * @param AuthorizationCheckerInterface $authorizationChecker
     */
    public function __construct(AuthorizationCheckerInterface $authorizationChecker)
    {
        $this->authorizationChecker = $authorizationChecker;

    }

    /**
     * @param GetResponseForControllerResultEvent $event
     */
    public function onKernelView(GetResponseForControllerResultEvent $event)
    {

        echo "This should trigger";
        exit;

        $user = $event->getControllerResult();
        if (!$user instanceof User) {
            return;
        }

        if (!$this->authorizationChecker->isGranted(null, $user)) {
            throw new AccessDeniedException();
        }
    }
}

api-platform event reference

我预计当我点击GET /projects/1和GET /projects时会出现"This should“，但它没有触发。有什么想法？

Answer 1

您应该使用更高的优先级(例如70)，以确保您的侦听器在内置视图侦听器之前执行。

示例：

user_access_listener:
    class:      AppBundle\Event\Listener\UserAccessListener
    arguments: [ "@security.authorization_checker" ]
    tags:
        - { name: kernel.event_listener, event: kernel.view, method: onKernelView, priority: 70 }