Symfony2 postUpdate侦听器不起作用 [英] Symfony2 postUpdate listener not working

问题描述

我收到以下错误消息，

可捕获的致命错误:传递给Doctrine \ ORM \ Event \ PreUpdateEventArgs :: __ construct()的参数3必须为数组类型，给定null，在

Catchable fatal error: Argument 3 passed to Doctrine\ORM\Event\PreUpdateEventArgs::__construct() must be of the type array, null given, called in

，不知道从哪里开始解决这个问题.您可以在下面看到我的听众(简称)

and don't know where to start in solving this. You can see my listener (shortened) below

    public function postUpdate(LifecycleEventArgs $args){
    $entity = $args->getEntity();

    $em = $args->getEntityManager();
    $args->getEntityManager()->clear();

    $securityContext = $this->container->get('security.context');
    $token = $securityContext->getToken();
    $userLoggedIn = $token->getUser();


    if ($entity instanceof Activity) {




    $em->flush();


    }
}

有人有任何建议吗?

这是我在config中的服务部分

Here's my services section from config

   activity.listener:
    class: My\Bundle\EventListener\ActivityListener
    arguments: ['@service_container']
    tags:
        - { name: doctrine.event_listener, event: prePersist }
        - { name: doctrine.event_listener, event: postPersist }
        - { name: doctrine.event_listener, event: postUpdate }

推荐答案

问题可能是由于postUpdate事件处理程序中的 $ em-> flush()引起的，该更新稍后将触发 UnitOfWork :: executeUpdates 函数调用.

The problem is caused probably by the $em->flush() inside the postUpdate event handler which later will trigger the UnitOfWork::executeUpdates function call.

如果是这种情况，那么我发现的唯一解决方法是我在教义错误报告(尽管我不认为这是真正的教义错误).

If that's the case then the only workaround I've found is the one I documented in a Doctrine bug report (although I don't regard this as a true Doctrine bug).

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