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PODoctrine2 Cache Corruption?
 

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    <p>I have a Repository Like Bellow. </p> <p>The code checks first if the item is already in the table. </p> <ul> <li><p>If it is not it downloads the data and then stores it to the table. </p></li> <li><p>If it is already in the table it just returns the record.</p></li> </ul> <p>But sometimes after it checks for the item in the table it will still go and try to download and store the item even though it is already there, creating a key conflict, but this should never happen since it just searched and did not find it.</p> <p>Things to note:</p> <ol> <li><strong>If I disable $query->useResultCache(true) i have no problem.</strong></li> <li>This is the only process working on the table.</li> <li>This is the only place in code that items are added to the table.</li> <li>This code is being called from a symfony2 console command.</li> <li>Memcache is the set cache for doctrine2.</li> <li>Memcached is running locally.</li> <li>The error is produced when using arraycache as well.</li> <li>This query is run many times a second.</li> </ol> <pre> class ItemRepository extends EntityRepository { public function findOrFetch($id) { $item = $this->findItem($id); if($item != null) return $item; else { $itemData = $this->fetchItem($id); $item = new Item(); $item->setId($id); $item->setName($itemData['name']); $this->getEntityManager()->persist($item); $this->getEntityManager()->flush(); } } private function findItem($id) { $query = $this ->getEntityManager() ->createQuery('SELECT i from MonkeyWire\WowProfToolsBundle\Entity\Item i WHERE i.id = ?1'); $query->setParameter(1, $id); $query->useResultCache(true); return $query->getOneOrNullResult(); } private function fetchItem($id) { $api = new Client(); $api->setRequest(new Curl()); try { $itemData = $api->getItemsApi()->getItem($id); } catch (NotFoundException $e) { $itemData['name'] = "na"; } return $itemData; } } </pre>
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