Sonata Admin sonata_type_collection - symfony

Question

I have an issue with Sonata admin form...
I would like to insert music in a album with position...
My issue is when I create an album... I can add many as I want AlbumHasMusic... But when I submit my form... Each AlbumHasMusic have a null album whereas music and positions are ok.
How could I put album id to each AlbumHasMusic ?
These are my Entities :
Album:
/**
* Album
*
* #ORM\Table()
* #ORM\Entity(repositoryClass="AppBundle\Entity\AlbumRepository")
* #ORM\HasLifecycleCallbacks()
*/
class Album
{
/**
* #var integer
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* #var string
*
* #ORM\Column(name="titre", type="string", length=255)
*/
private $titre;
/**
* #var UploadedFile
*/
private $cover;
/**
* #var String
*
* #ORM\Column(name="filename", type="string", length=255, nullable=true)
*/
private $covername;
/**
*
* #var Array<AlbumHasMusiques>
* #ORM\OneToMany(targetEntity="AppBundle\Entity\AlbumHasMusiques", mappedBy="album", cascade={"persist"})
*/
private $albumHasMusiques;
/**
* #var \DateTime
*
* #ORM\Column(name="updated", type="time", nullable=true)
*/
private $updated;
}
AlbumHasMusic:
/**
* AlbumHasMusiques
*
* #ORM\Table()
* #ORM\Entity(repositoryClass="AppBundle\Entity\AlbumHasMusiquesRepository")
*/
class AlbumHasMusiques
{
/**
* #var integer
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* #var Album
*
* #ORM\ManyToOne(targetEntity="Album")
* #ORM\JoinColumn(name="album_id", referencedColumnName="id")
*/
private $album;
/**
* #var Musique
*
* #ORM\ManyToOne(targetEntity="Musique")
* #ORM\JoinColumn(name="musique_id", referencedColumnName="id")
*/
private $musique;
/**
* #var integer
*
* #ORM\Column(name="position", type="integer")
*/
private $position;
}
Music:
/**
* Musique
*
* #ORM\Table()
* #ORM\Entity(repositoryClass="AppBundle\Entity\MusiqueRepository")
* #ORM\HasLifecycleCallbacks()
*/
class Musique
{
/**
* #var integer
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* #var \DateTime
*
* #ORM\Column(name="duree", type="time", nullable=true)
*/
private $duree;
/**
* #var \DateTime
*
* #ORM\Column(name="updated", type="time", nullable=true)
*/
private $updated;
/**
* #var string
*/
private $file;
/**
* #var String
*
* #ORM\Column(name="filename", type="string", length=255, nullable=true)
*/
private $filename;
/**
* #var string
*
* #ORM\Column(name="titre", type="string", length=255, nullable=true)
*/
private $titre;
/**
* #var Genre
*
* #ORM\ManyToOne(targetEntity="Genre", inversedBy="musiques")
* #ORM\JoinColumn(name="genre_id", referencedColumnName="id", nullable=false)
*/
private $genre;
/**
* #ORM\ManyToMany(targetEntity="MotClef", inversedBy="musiques")
*/
private $motsClef;
}
I would like to do something like Galeries and media of Sonata Media Bundle.
And this is my AlbumAdmin:
class AlbumAdmin extends Admin
{
/**
* #param FormMapper $formMapper
*/
protected function configureFormFields(FormMapper $formMapper)
{
$formMapper
->add('titre')
->add('covername')
->add('updated')
->add('albumHasMusiques', 'sonata_type_collection', array(
'cascade_validation' => true,
'by_reference' => false,
), array(
'edit' => 'inline',
'inline' => 'table',
'sortable' => 'position',
'link_parameters' => array('context' => 'default'),
'admin_code' => 'app.admin.album_has_musiques',
)
)
;
}
/**
* {#inheritdoc}
*/
public function prePersist($album)
{
$album->setAlbumHasMusiques($album->getAlbumHasMusiques());
}
/**
* {#inheritdoc}
*/
public function preUpdate($album)
{
$album->setAlbumHasMusiques($album->getAlbumHasMusiques());
}
}
And AlbumHasMusicAdmin :
class AlbumHasMusiquesAdmin extends Admin
{
/**
* #param FormMapper $formMapper
*/
protected function configureFormFields(FormMapper $formMapper)
{
$formMapper
->add('musique', 'sonata_type_model_list', array('required' => true), array(
'link_parameters' => ['context' => 'default'],
))
->add('position', 'hidden')
;
}
}
Do you have any idea ?

Answer 1

I think that you missed something in the addAlbumHasMusiques() function in your album entity : make sure that you wrote it like that :
public function addAlbumHasMusiques(\AppBundle\Entity\AlbumHasMusiques $albumHasMusiques) {
$albumHasMusiques->setAlbum($this); // The important line !!!!
$this->albumHasMusiques[] = $albumHasMusiques;
return $this;
}