Question

在symfony 3中，我订阅了

FOSUserEvents :: REGISTRATION_COMPLETED 用地址数据填写第二个表并写日志。

namespace AppBundle\EventListener;

use AppBundle\Entity\Address;
use Doctrine\ORM\EntityManager;
use Psr\Container\ContainerInterface;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use FOS\UserBundle\FOSUserEvents;
use FOS\UserBundle\Event\FilterUserResponseEvent;

class RegistrationSubscriber implements EventSubscriberInterface
{

    private $em;

    private $container;

    public function __construct(EntityManager $em,ContainerInterface $container)
    {
        $this->em = $em;
        $this->container = $container;
    }

    public static function getSubscribedEvents()
    {
        return [
            FOSUserEvents::REGISTRATION_COMPLETED => [
                ['onRegistrationCompleted',0]
                ],
            ];
    }

    public function onRegistrationCompleted(FilterUserResponseEvent $event)
    {
        $user = $event->getUser();
        $address = new Address();
        $address->addAddress($user);
        $this->em->persist($address);
        $this->em->flush();

        $this->container->get('app.logging')->write('Anmeldung',array('customer'=>$user->getId()));
    }


}

services.yml：

app.registration_listener:
    class: 'AppBundle\EventListener\RegistrationSubscriber'
    arguments: ['@doctrine.orm.entity_manager']
    tags:
    - { name: kernel.event_subscriber}    

app.logging:
       class: AppBundle\Util\LogHandler
       arguments: ['@doctrine.orm.entity_manager']
       public: true

提交注册表后，会触发FOSUserEvents :: REGISTRATION_COMPLETED，但它会运行两次，因为地址数据和日志数据会被写入两次。

可能是什么原因？

Answer 1

我自己找到了。

在symfony 3.3的services.yml中，我使用了该选项 autoconfigure：true ，所以服务和事件订阅者会自动加载。

这就是事件被触发两次的原因。

订阅FOSUserEvents :: REGISTRATION_COMPLETED正在运行两次

1 个答案: