It is not possible due to doctrine's proxies workflow.
I had a discusion like about 30 responses within this mailing list looking
for the same answer, without a practical success.
Doctrine's official docs tells you can't serialize entities (when they are
proxies).
What I implemented is a backToLife function:
I serialize the owning-side-association Entity/ies in a session var, and
then (to be able to access its related entities) I seek
for them again with the entity_manager, something like:
$entities = unserialize($serializedEntities);
foreach($entities as $entity)
{
$entity = $entity_manager('Bundle:Entity')->find($entity->getId());
}
This way, entities will be 'attached' back to its real 'form', cause you
won't be able to access a related entity from an unserialized entity
(because, yu have to serialize/unserialize an object to be able to be
stored/retrieve in a session variable).
If you find a better solution, share!
Regards!
2011/6/10 Michael Holm <ho...@hollo.dk>
> Hi,
>
> I have started to build a search function on my website..
>
> My idea was to have a filter form class, give it an object which i
> then will serialize and then save it in a session.. and it works just
> perfect if i have no relationships in the object..
>
> But when i want to make a relation to an another table, that
> relationship will not be serialized.. can some one help? Is it
> possible, or do i have to do it in an another way, here is what i do:
>
> public function filterAction()
> {
> $filter = new \Club\UserBundle\Entity\User();
>
> $form = $this->createForm(new \Club\UserBundle\Filter\User($filter));
> $form->bindRequest($this->get('request'));
>
> if ($form->isValid()) {
>
> $this->get('session')->set('filter.admin_user',serialize($form->getData()));
> }
>
> return $this->forward('ClubUserBundle:AdminUser:index');
> }
>
> Pretty straight forward, and when i want to load the form i simple
> does unserialize the object and load it with setData()..
>
> public function indexAction()
> {
> $em = $this->get('doctrine')->getEntityManager();
>
> $filter = unserialize($this->get('session')->get('filter.admin_user'));
> $filter = ($filter instanceOf \Club\UserBundle\Entity\User) ?
> $filter : new \Club\UserBundle\Entity\User();
>
> $filter_form = $this->createForm(new \Club\UserBundle\Filter\User());
> $filter_form->setData($filter);
>
> Can someone give me a hint, or maybe have a better solution for
> creating search functionality?
>
> Best regards,
> Michael Holm
>
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