具有数据库访问权限的Symfony 3.1监听器

// src/EventListener/UserPermissionListener.php
namespace App\EventListener;

use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\Security\Core\AuthenticationEvents;
use Symfony\Component\Security\Core\Event\AuthenticationEvent;
use Doctrine\ORM\EntityManagerInterface;

class UserPermissionListener implements EventSubscriberInterface
{
    private $entityManager;

    public function __construct(EntityManagerInterface $entityManager)
    {
        $this->entityManager = $entityManager;
    }

    public static function getSubscribedEvents()
    {
        return [
            AuthenticationEvents::INTERACTIVE_LOGIN => 'onInteractiveLogin',
        ];
    }

    public function onInteractiveLogin(AuthenticationEvent $event)
    {
        $user = $event->getAuthenticationToken()->getUser();

        // 假设我们有一个User实体和一个Permission实体
        $permissions = $this->entityManager->getRepository('App\Entity\Permission')
            ->findByUser($user);

        // 检查用户权限并执行相应操作
        if ($permissions) {
            // 用户有权限，执行某些操作
        } else {
            // 用户无权限，抛出异常或重定向
        }
    }
}