坚持新实体onFlush [英] persist new entity onFlush

问题描述

我尝试在Doctrine中使用onFlush事件来持久化一个新实体，但是在尝试持久化时会导致无限循环。这是我在侦听器中执行的操作：

I try to user the onFlush Event in Doctrine to persist a new entity, but it leads to an infinite loop when trying to persist. Here is what I do in the Listener:

$countusers = $em->getRepository('DankeForumBundle:NotificationUser')->countNotificationsByDeal($entity);
if ($countusers > 0) {
  $notification = new NotificationAction();
  $notification->setDeal($entity);
  $notification->setDatepost(new \DateTime());
  $notification->setNotificationtype(NotificationAction::TYPE_TOP_DEAL);
  // $em is set to EntityManager
  $em->persist($notification);
  // $uow ist set to UnitOfWork
  $uow->computeChangeSet($em->getClassmetadata('Danke\ForumBundle\Entity\NotificationAction'), $notification);
}

我知道在onFlush中进行刷新时会出现循环活动，但我不这样做！我只能按照文档中的说明来计算新的变更集。

I know that I would get a loop, when I was flushing in the onFlush Event, but I don't do that! I only compute the new change set as it says in the documentation.

有人可以告诉问题出在哪里吗？

Can someone tell where the problem is?

编辑：也许很有趣，我确定它在几天前就可以使用，但我不记得更改任何内容（我知道这是不对的；））...

It maybe interesting, that I am sure it worked some days ago, but I can't remember changing anything (which I know can't be true ;) )...

推荐答案

我的onFlush事件有类似的问题。请更改

I had similar issues with onFlush Event. Please change

$em->persist($notification);

到

$uow = $em->getUnitOfWork();
$uow->persist($notification);

$metadata = $em->getClassMetadata(get_class($notification));
$uow->computeChangeSet($metadata, $notification);

$ ow-> persist（）将使 UnitOfWork 了解新实体，并安排其插入。
调用 $ uow-> computeChangeSet（）是必要的，以收集应该由教义的坚持者插入的数据。

$uow->persist() will make the UnitOfWork know about the new entity and will schedule it for insertion. Calling $uow->computeChangeSet() is neccessary, to collect the data that should be inserted by Doctrine's persister.

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