php – Symfony DI：与Doctrine事件订阅者的循环服务引用

final class TicketNotificationListener implements EventSubscriber
{
    /**
     * @var TicketMailer
     */
    private $mailer;

    /**
     * @var TicketSlackSender
     */
    private $slackSender;

    /**
     * @var NotificationManager
     */
    private $notificationManager;

    /**
     * We must wait the flush to send closing notification in order to
     * be sure to have the latest message of the ticket.
     *
     * @var Ticket[]|ArrayCollection
     */
    private $closedTickets;

    /**
     * @param TicketMailer        $mailer
     * @param TicketSlackSender   $slackSender
     * @param NotificationManager $notificationManager
     */
    public function __construct(TicketMailer $mailer,TicketSlackSender $slackSender,NotificationManager $notificationManager)
    {
        $this->mailer = $mailer;
        $this->slackSender = $slackSender;
        $this->notificationManager = $notificationManager;

        $this->closedTickets = new ArrayCollection();
    }

    // Stuff...
}

目标是在使用Doctrine SQL通过邮件,Slack和内部通知创建或更新Ticket或TicketMessage实体时分派通知.

我已经与Doctrine有一个循环依赖问题,所以我从事件args中注入了实体管理器：

class NotificationManager
{
    /**
     * Must be set instead of extending the EntityManagerDecorator class to avoid circular dependency.
     *
     * @var EntityManagerInterface
     */
    private $entityManager;

    /**
     * @var NotificationRepository
     */
    private $notificationRepository;

    /**
     * @var RouterInterface
     */
    private $router;

    /**
     * @param RouterInterface $router
     */
    public function __construct(RouterInterface $router)
    {
        $this->router = $router;
    }

    /**
     * @param EntityManagerInterface $entityManager
     */
    public function setEntityManager(EntityManagerInterface $entityManager)
    {
        $this->entityManager = $entityManager;
        $this->notificationRepository = $this->entityManager->getRepository('AppBundle:Notification');
    }

    // Stuff...
}

经理从TicketNotificationListener注入

public function postPersist(LifecycleEventArgs $args)
{
    // Must be lazy set from here to avoid circular dependency.
    $this->notificationManager->setEntityManager($args->getEntityManager());
    $entity = $args->getEntity();
}

Web应用程序正在运行,但是当我尝试运行像doctrine：database：drop这样的命令时,我得到了这个：

[SymfonyComponentDependencyInjectionExceptionServiceCircularReferenceException]                                                                                                                                                                                            
  Circular reference detected for service "doctrine.dbal.default_connection",path: "doctrine.dbal.default_connection -> mailer.ticket -> twig -> security.authorization_checker -> security.authentication.manager -> fos_user.user_provider.username_email -> fos_user.user_manager".

但这与供应商服务有关.

怎么解决这个？为什么我只在cli上出现此错误？

谢谢.