doctrine-orm - 如何在 symfony 中禁用学说的软删除(Soft-deleteable)过滤器

Question

为 Doctrine 2 安装和使用 SoftDeleteable 行为扩展非常简单。问题通常是尝试为某些代码部分禁用它并再次启用。您可能希望这样做:

加载软删除的实体

完全绕过软删除过滤器从数据库中删除实体

那么如何禁用呢？

Answer 1

1. 如何加载软删除的实体
根据文档，禁用实体管理器的过滤器:

$em->getFilters()->disable('softdeleteable');
$object = $em->find('AppBundle:Object', 1); // soft-deleted entity will be loaded

再次启用软删除:

$em->getFilters()->enable('softdeleteable');

注: $em->clear();如果实体已经加载了禁用的软删除过滤器，则在此行之前可能需要。
2.如何从数据库中完全删除实体
即使文档中没有提到它，如果您需要删除实体并绕过软删除过滤器，第一个解决方案也不起作用。过滤器需要从实体管理器的事件监听器中移除:

// initiate an array for the removed listeners
$originalEventListeners = [];

// cycle through all registered event listeners
foreach ($em->getEventManager()->getListeners() as $eventName => $listeners) {
    foreach ($listeners as $listener) {
        if ($listener instanceof \Gedmo\SoftDeleteable\SoftDeleteableListener) {

            // store the event listener, that gets removed
            $originalEventListeners[$eventName] = $listener;

            // remove the SoftDeletableSubscriber event listener
            $em->getEventManager()->removeEventListener($eventName, $listener);
        }
    }
}

// remove the entity
$em->remove($object);
$em->flush($object); // or $em->flush();

// re-add the removed listener back to the event-manager
foreach ($originalEventListeners as $eventName => $listener) {
    $em->getEventManager()->addEventListener($eventName, $listener);
}

引用:

https://github.com/Atlantic18/DoctrineExtensions/blob/master/doc/softdeleteable.md

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