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65 lines
1.8 KiB
PHP
65 lines
1.8 KiB
PHP
<?php
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namespace Wallabag\Event\Subscriber;
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use Doctrine\Common\EventSubscriber;
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use Doctrine\DBAL\Platforms\SqlitePlatform;
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use Doctrine\ORM\Event\LifecycleEventArgs;
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use Doctrine\Persistence\ManagerRegistry;
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use Wallabag\Entity\Entry;
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/**
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* SQLite doesn't care about cascading remove, so we need to manually remove associated stuf for an Entry.
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* Foreign Key Support can be enabled by running `PRAGMA foreign_keys = ON;` at runtime (AT RUNTIME !).
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* But it needs a compilation flag that not all SQLite instance has ...
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*
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* @see https://www.sqlite.org/foreignkeys.html#fk_enable
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*/
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class SQLiteCascadeDeleteSubscriber implements EventSubscriber
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{
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private $doctrine;
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public function __construct(ManagerRegistry $doctrine)
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{
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$this->doctrine = $doctrine;
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}
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/**
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* @return array
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*/
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public function getSubscribedEvents()
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{
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return [
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'preRemove',
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];
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}
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/**
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* We removed everything related to the upcoming removed entry because SQLite can't handle it on it own.
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* We do it in the preRemove, because we can't retrieve tags in the postRemove (because the entry id is gone).
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*/
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public function preRemove(LifecycleEventArgs $args)
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{
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$entity = $args->getObject();
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if (!$this->doctrine->getConnection()->getDatabasePlatform() instanceof SqlitePlatform
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|| !$entity instanceof Entry) {
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return;
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}
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$em = $this->doctrine->getManager();
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if (null !== $entity->getTags()) {
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foreach ($entity->getTags() as $tag) {
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$entity->removeTag($tag);
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}
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}
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if (null !== $entity->getAnnotations()) {
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foreach ($entity->getAnnotations() as $annotation) {
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$em->remove($annotation);
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}
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}
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$em->flush();
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}
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}
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