Symfony2 OneToMany Embed Form does not save object on
I have persistent problems with OneToMany inline forms in Symfony2.
This time the objects are preserved, but not a reference to the parent class.
My table looks like this:
| id | position | content | about_id |
| 29 | 1 | test 1 | NULL |
I can't figure out why this about_id is still NULL.
My relationship:
Essence:
class About {
/*
....
*/
/**
* @ORM\OneToMany(targetEntity="AboutContent", mappedBy="about", cascade={"persist", "remove"})
*/
private $content;
/**
* Add content
*
* @param AboutContent $content
* @return About
*/
public function addContent(AboutContent $content)
{
$this->content[] = $content;
return $this;
}
/**
* Remove content
*
* @param AboutContent $content
*/
public function removeContent(AboutContent $content)
{
$this->content->removeElement($content);
}
/**
* Get content
*
* @return \Doctrine\Common\Collections\Collection
*/
public function getContent()
{
return $this->content;
}
}
My About Content:
class AboutContent {
/**
* @ORM\ManyToOne(targetEntity="About", inversedBy="content")
*/
private $about;
/**
* Set about
*
* @param About $about
* @return AboutContent
*/
public function setAbout(About $about = null)
{
$this->about = $about;
return $this;
}
/**
* Get about
*
* @return About
*/
public function getAbout()
{
return $this->about;
}
}
My controller was auto-generated by my crud:
/**
* Creates a new About entity.
*
*/
public function createAction(Request $request)
{
$entity = new About();
$form = $this->createCreateForm($entity);
$form->handleRequest($request);
if ($form->isValid()) {
$em = $this->getDoctrine()->getManager();
$em->persist($entity);
$em->flush();
return $this->redirect($this->generateUrl('about_show', array('id' => $entity->getId())));
}
return $this->render('AdminBundle:About:new.html.twig', array(
'entity' => $entity,
'form' => $form->createView(),
));
}
My form constructor:
$builder
->add('lang', 'choice', array(
'choices' => $this->langs,
'preferred_choices' => array('en'),
)) ->add('media')
->add('content', 'collection', array(
'type' => new AboutContentType(),
'allow_add' => true,
'allow_delete' => true,
'cascade_validation' => true
), array('label'=>'Texts'))
;
}
Thanks a lot if you find a solution.
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Hello everyone after home searching, I finally found the answer. The problem didn't come from my entities or the ships of my relationship. It came from my form.
In my type, I just didn't add the tag: 'by_reference' => false
He decided everything.
To help you if you have the same problem, below is my builder:
$builder->add(
'aboutContents',
'collection',
[
'type' => new AboutContentType(),
'allow_add' => true,
'allow_delete' => true,
'cascade_validation' => true,
'by_reference' => false,
],
[
'label' => 'Texts'
]
);
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Your new objects AboutContent
are unaware of the created object About
because the form:
- runs a method addContent
on the object About
,
- doesn't work setAbout
on AboutContent
.
You need to update the association field on the owner ( AboutContent
) side to keep the association.
Look at the definition of Association Update .
In your code:
- Own side is an AboutContent
entity (because it is related to About
)
- Back side of About
entity
So in addContent
you must install About
to add AboutContent
.
class About {
//...
/**
* Add content
*
* @param AboutContent $content
* @return About
*/
public function addContent(AboutContent $content)
{
$this->content[] = $content;
$content->setAbout($this); // set the relation on the owning-side
return $this;
}
//...
}
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