Symfony 2 - Doctrine - oneToMany : delete from many - doctrine-orm

Question

I have two entities : Episode and Version.
When I tried to delete a version a get an exception:
Notice: Undefined index: episode in /var/www/Mendrock/vendor/doctrine/orm/lib/Doctrine/ORM/Persisters/BasicEntityPersister.php line 1561
I already check relations but I didn't find the error.
My entities:
Episode
namespace Mendrock\Bundle\SagaBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* Mendrock\Bundle\SagaBundle\Entity\Episode
*
* #ORM\Table(name="episode")
* #ORM\Entity(repositoryClass="Mendrock\Bundle\SagaBundle\Repository\EpisodeRepository")
*/
class Episode {
...
/**
*
* #ORM\OneToMany(targetEntity="Version", mappedBy="episode", cascade={"remove", "persist"})
*/
private $versions;
Version
namespace Mendrock\Bundle\SagaBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Gedmo\Mapping\Annotation as Gedmo;
/**
* Mendrock\Bundle\SagaBundle\Entity\EpisodeVersion
*
* #ORM\Table(name="version")
* #ORM\Entity(repositoryClass="Mendrock\Bundle\SagaBundle\Repository\EpisodeVersionRepository")
*/
class Version {
...
/**
* #ORM\ManyToOne(targetEntity="Episode", inversedBy="versions", cascade={"persist"})
* #ORM\JoinColumn(name="episode_id", referencedColumnName="id")
*/
private $episode;
...
Controller
/**
*
* #Route("/versionConfirmeDelete/{id}", options={"expose"=true})
* #Method("GET")
* #Template()
*/
public function versionConfirmeDeleteAction($id) {
$em = $this->getDoctrine()->getManager();
$entity = $em->getRepository('MendrockSagaBundle:Version')->find($id);
if (!$entity) {
throw $this->createNotFoundException('Unable to find Version entity.');
}
$deleteForm = $this->createDeleteForm($id);
return array(
'entity' => $entity,
'delete_form' => $deleteForm->createView(),
);
}
/**
* Deletes a Episode entity.
*
* #Route("/versionDelete/{id}")
* #Method("POST")
*/
public function versionDeleteAction(Request $request, $id) {
$form = $this->createDeleteForm($id);
$form->bind($request);
if ($form->isValid()) {
$em = $this->getDoctrine()->getManager();
$entity = $em->getRepository('MendrockSagaBundle:Version')->find($id);
$episode = $entity->getEpisode();
if (!$entity) {
throw $this->createNotFoundException('Unable to find Version entity.');
}
$em->remove($entity);
$em->flush();
$this->get('session')->setFlash('success', 'La version "' . $entity . '" de l\'épisode "'.$episode.'" à été supprimé !');
} else {
$this->get('session')->setFlash('error', 'Impossible de supprimer la version "' . $entity . '".');
}
return $this->redirect($this->generateUrl('mendrock_saga_default_episodes'));
}
#################################################################
### Commun ##################################################
#################################################################
private function createDeleteForm($id) {
return $this->createFormBuilder(array('id' => $id))
->add('id', 'hidden')
->getForm()
;
}
Any ideas of my problem?

Answer 1

I found the error, it was an other relation for this entities who make problem.
Name of attribut was not corresponded.