Symfony3.3，Doctrine2。 EventSubscriber，在更新不执行

Question

我有这样的用户位于AppBundle\DoctrineListeners身体的正是这种

namespace AppBundle\DoctrineListeners; 

use Doctrine\Common\EventSubscriber; 
use Doctrine\ORM\Event\OnFlushEventArgs; 
use AppBundle\Entity\Bing\KeyWordReport; 
use Doctrine\ORM\Events; 

/** 
* Listener used to on update fielt create history 
*/ 
class KeywordSubscriber implements EventSubscriber 
{ 
    public function onFlush(OnFlushEventArgs $args) 
    { 
     throw new \Exception("Error Processing Request", 1); //for testing 

     $em = $args->getEntityManager(); 
     $uow = $em->getUnitOfWork(); 

     foreach ($uow->getScheduledEntityUpdates() as $updated) { 
      if ($updated instanceof KeyWordReport) { 
       //do some work 
      } 
     } 

     $uow->computeChangeSets(); 
    } 

    public function getSubscribedEvents() 
    { 
     return [Events::onFlush => ['onFlush', 10], Events::preUpdate]; 
    } 
} 

我使用symfony的3.3

service.yml

services: 
    # default configuration for services in *this* file 
    _defaults: 
     # automatically injects dependencies in your services 
     autowire: true 
     # automatically registers your services as commands, event subscribers, etc. 
     autoconfigure: true 
     # this means you cannot fetch services directly from the container via $container->get() 
     # if you need to do this, you can override this setting on individual services 
     public: false 

推出自动配置在实体中我注释了这个* @ORM\EntityListeners({"AppBundle\DoctrineListeners\KeywordSubscriber"}) 为什么它不被执行？

Answer 1

正如@YannEugonénoted in comment - EventSubscribes和学说EntityListeners是不同的东西。在Symfony的事件侦听器都被registered manually：

namespace AppBundle\DoctrineListeners; 

use Doctrine\ORM\Event\OnFlushEventArgs; 
use AppBundle\Entity\Bing\KeyWordReport; 

class KeywordListener 
{ 
    public function onFlush(OnFlushEventArgs $eventArgs) 
    { 
     $em = $eventArgs->getEntityManager(); 
     $uow = $em->getUnitOfWork(); 

     foreach ($uow->getScheduledEntityInsertions() as $entity) { 
      // … some action 
     } 

     foreach ($uow->getScheduledEntityUpdates() as $entity) { 
      // … some action 
     } 

     foreach ($uow->getScheduledEntityDeletions() as $entity) { 
      // … some action 
     } 

     foreach ($uow->getScheduledCollectionDeletions() as $col) { 
      // … some action 
     } 

     foreach ($uow->getScheduledCollectionUpdates() as $col) { 
      // … some action 
     } 
    } 
} 

#services.yml 
services: 
    # … 

    AppBundle\DoctrineListeners\KeywordListener: 
     tags: 
      - { name: doctrine.event_listener, event: onFlush }