Symfony Sonata Media Bundle отношения один ко многим

У меня есть проект, работающий с сонатой AdminBundle, и я хочу использовать mediaBundle для загрузки. У меня есть прототип объекта, который может иметь много изображений. Я хотел бы иметь форму, чтобы я мог добавить много изображений перед сохранением.
Я следовал за шагами в MediaBundle ~ MediaType улучшено
Но это не работает, и я не понимаю, почему!

РЕДАКТИРОВАТЬ :
Чтобы было ясно: у меня есть 3 раздела, и я хотел бы иметь возможность загружать много изображений в каждом из них.

Вот мой прототип сущности:

<?php

namespace AppBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\HttpFoundation\File\File;
use Vich\UploaderBundle\Mapping\Annotation as Vich;
use Symfony\Component\Validator\Constraints as Assert;
use Doctrine\Common\Collections\ArrayCollection;

/**
* Prototype
*
* @ORM\Table()
* @ORM\Entity(repositoryClass="AppBundle\Entity\PrototypeRepository")
* @Vich\Uploadable
* @ORM\HasLifecycleCallbacks
*/
class Prototype
{
/**
* @var integer
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;

/**
* @var string
*
* @ORM\Column(name="nom", type="string", length=255)
*/
private $nom;


/**
* @var string
*
* @ORM\Column(name="description", type="string", length=255)
*/
private $description;

/**
* @var \DateTime
*
* @ORM\Column(name="dateCreation", type="date")
*/
private $dateCreation;


/**
* @ORM\Column(type="string", length=255, name="fichier_nom")
*
* @var string $nomFichier
*/
public $nomFichier;


/**
* @ORM\Column(type="datetime")
*
* @var \DateTime $updatedAt
*/
public $updatedAt;


/**
* Unmapped property to handle file uploads
* @Vich\UploadableField(mapping="prototype_fichier", fileNameProperty="nomFichier")
*
* @var File $file
*/
private $file;


/**
* @ORM\ManyToOne(targetEntity="AppBundle\Entity\Projet", inversedBy="prototypes")
* @ORM\joinColumn(name="projet_id", referencedColumnName="id")
*/
private $projet;

/**
* @Assert\NotBlank()
* @ORM\OneToMany(targetEntity="AppBundle\Entity\PrototypeHasMedia", mappedBy="prototype",cascade={"persist","remove"} )
*/
protected $links;


/**
* Remove widgetImages
*
* @param \Application\Sonata\MediaBundle\Entity\Media $widgetImages
*/
public function removeLinks(\AppBundle\Entity\PrototypeHasMedia $links)
{
$this->links->removeElement($links);
}


/**
* Get widgetImages
*
* @return \Doctrine\Common\Collections\Collection
*/
public function getLinks()
{
return $this->links;
}


/**
* {@inheritdoc}
*/
public function setLinks($links)
{
$this->links = new ArrayCollection();


foreach ($links as $prototype) {
$this->addLinks($prototype);
}
}

/**
* {@inheritdoc}
*/
public function addLinks(\AppBundle\Entity\PrototypeHasMedia $links)
{
$links->setPrototype($this);


$this->links[] = $links;
}


public function __construct()
{
$this->dateCreation =  new \DateTime("now");
$this->nom = "";
$this->description = " ";

}


/**
* Get id
*
* @return integer
*/
public function getId()
{
return $this->id;
}


/**
* Get nom
*
* @return string
*/
public function getNom()
{
return $this->nom;
}

public function __toString()
{
return $this->getNom();
}

/**
* Set nom
*
* @param string $nom
* @return Prototype
*/
public function setNom($nom)
{
$this->nom = $nom;

return $this;
}


/**
* Set description
*
* @param string $description
* @return Prototype
*/
public function setDescription($description)
{
$this->description = $description;

return $this;
}

/**
* Get description
*
* @return string
*/
public function getDescription()
{
return $this->description;
}

/**
* Set dateCreation
*
* @param \DateTime $dateCreation
* @return Prototype
*/
public function setDateCreation($dateCreation)
{
$this->dateCreation = $dateCreation;

return $this;
}

/**
* Get dateCreation
*
* @return \DateTime
*/
public function getDateCreation()
{
return $this->dateCreation;
}


/**
* Set projet
*
* @param \AppBundle\Entity\Projet $projet
* @return Prototype
*/
public function setProjet(\AppBundle\Entity\Projet $projet = null)
{
$this->projet = $projet;
return $this;
}

/**
* Get projet
*
* @return \AppBundle\Entity\Projet
*/
public function getProjet()
{
return $this->projet;
}



/**
* If manually uploading a file (i.e. not using Symfony Form) ensure an instance
*
* @param File|\Symfony\Component\HttpFoundation\File\UploadedFile $file
*/
public function setFile(File $file = null)
{
$this->file = $file;

if ($file) {

$this->updatedAt = new \DateTime('now');
}
}

/**
* @return File
*/
public function getFile()
{
return $this->file;
}

/**
* @param string $nomFichier
*/
public function setNomFichier($nomFichier)
{
$this->nomFichier = $nomFichier;
}

/**
* @return string
*/
public function getNomFichier()
{
return $this->nomFichier;
}


/**
* Set updatedAt
*
* @param \DateTime $updatedAt
* @return Prototype
*/
public function setUpdatedAt($updatedAt)
{
$this->updatedAt = $updatedAt;

return $this;
}

/**
* Get updatedAt
*
* @return \DateTime
*/
public function getUpdatedAt()
{
return $this->updatedAt;
}





/**
* Add links
*
* @param \AppBundle\Entity\PrototypeHasMedia $links
* @return Prototype
*/
public function addLink(\AppBundle\Entity\PrototypeHasMedia $links)
{
$this->links[] = $links;

return $this;
}

/**
* Remove links
*
* @param \AppBundle\Entity\PrototypeHasMedia $links
*/
public function removeLink(\AppBundle\Entity\PrototypeHasMedia $links)
{
$this->links->removeElement($links);
}
}

А в PrototypeHasMedia:

<?php

namespace AppBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;




/**
* PrototypeHasMedia
*
* @ORM\Table()
* @ORM\Entity(repositoryClass="AppBundle\Entity\PrototypeHasMediaRepository")
*/
class PrototypeHasMedia
{

/**
* @var integer
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;

/**
* @var \Application\Sonata\MediaBundle\Entity\Media
* @Assert\NotBlank()
* @ORM\ManyToOne(targetEntity="Application\Sonata\MediaBundle\Entity\Media", cascade={"persist"}, fetch="LAZY")
* @ORM\JoinColumn(name="media_id", referencedColumnName="id")
*/
protected $media;


/**
* @var \AppBundle\Entity\Prototype
* @Assert\NotBlank()
* @ORM\ManyToOne(targetEntity="AppBundle\Entity\Prototype", cascade={"persist","remove"} ,inversedBy="links", fetch="LAZY" )
* @ORM\JoinColumn(name="prototype_id", referencedColumnName="id",nullable=true)
*/
protected $prototype;






/**
* @var string
* @ORM\Column(name="link", type="text")
*/
private $link;

/**
* @var string
*
* @ORM\Column(name="commentaire", type="string", length=255)
*/
private $commentaire;

/**
* @var string
*
* @ORM\Column(name="typeDevice", type="string", length=255)
*/
private $typeDevice;


/**
* Set media
*
* @param \Application\Sonata\MediaBundle\Entity\Media $media
* @return PrototypeHasMedia
*/
public function setMedia(\Application\Sonata\MediaBundle\Entity\Media $media = null)
{
$this->media = $media;

return $this;
}

/**
* Get media
*
* @return \Application\Sonata\MediaBundle\Entity\Media
*/
public function getMedia()
{
return $this->media;
}



/**
* Set prototype
*
* @param \AppBundle\Entity\Prototype $prototype
* @return PrototypeHasMedia
*/
public function setPrototype(\AppBundle\Entity\Prototype $prototype = null)
{
$this->prototype = $prototype;

return $this;
}

/**
* Get prototype
*
* @return \AppBundle\Entity\Prototype
*/
public function getPrototype()
{
return $this->prototype;
}

/**
* Get id
*
* @return integer
*/
public function getId()
{
return $this->id;
}

/**
* Set link
*
* @param string $link
* @return PrototypeHasMedia
*/
public function setLink($link)
{
$this->link = $link;

return $this;
}

/**
* Get link
*
* @return string
*/
public function getLink()
{
return $this->link;
}

/**
* Set commentaire
*
* @param string $commentaire
* @return Image
*/
public function setCommentaire($commentaire)
{
$this->commentaire = $commentaire;

return $this;
}

/**
* Get commentaire
*
* @return string
*/
public function getCommentaire()
{
return $this->commentaire;
}

/**
* Set typeDevice
*
* @param string $typeDevice
* @return Image
*/
public function setTypeDevice($typeDevice)
{
$this->typeDevice = $typeDevice;

return $this;
}

/**
* Get typeDevice
*
* @return string
*/
public function getTypeDevice()
{
return $this->typeDevice;
}
}

Вот прототип Admin.php

<?php


namespace AppBundle\Admin;

use Sonata\AdminBundle\Admin\Admin;
use Sonata\AdminBundle\Datagrid\ListMapper;
use Sonata\AdminBundle\Datagrid\DatagridMapper;
use Sonata\AdminBundle\Form\FormMapper;
use Sonata\AdminBundle\Show\ShowMapper;





class PrototypeAdmin extends Admin
{

protected function configureFormFields(FormMapper $formMapper)
{
$formMapper
->with('Général')
->add('nom', 'text', array('label' => 'Nom'))
->add('description','text',array('label'=>'Description'))
->add('dateCreation', 'date', array('label' => 'Date de création'))

->add('projet','entity',array('class' => 'AppBundle\Entity\Projet'))
->end()

->with('Desktop')

->add('links', 'sonata_type_collection', array(
'cascade_validation' => false,
'type_options' => array('delete' => false),
), array(

'edit' => 'inline',
'inline' => 'table',
'sortable' => 'position',
'link_parameters' => array('context' => 'prototype'),
'admin_code' => 'sonata.admin.prototype_has_media' /*here provide service name for junction admin */
)
)


->end()

->with('Tablette')

->add('links', 'sonata_type_collection', array(
'cascade_validation' => false,
'type_options' => array('delete' => false),
), array(

'edit' => 'inline',
'inline' => 'table',
'sortable' => 'position',
'link_parameters' => array('context' => 'prototype'),
'admin_code' => 'sonata.admin.prototype_has_media' /*here provide service name for junction admin */
)
)
->end()


->with('Mobile')

->add('links', 'sonata_type_collection', array(
'cascade_validation' => false,
'type_options' => array('delete' => false),
), array(

'edit' => 'inline',
'inline' => 'table',
'sortable' => 'position',
'link_parameters' => array('context' => 'prototype'),
'admin_code' => 'sonata.admin.prototype_has_media' /*here provide service name for junction admin */
)
)
->end()

->with('Dossier Complet')
->add('file', 'file', array('required' => false , 'label' => 'Dossier complet'))
->end()
;

}


protected function configureDatagridFilters(DatagridMapper $datagridMapper)
{
$datagridMapper
->add('nom')
->add('dateCreation')
->add('projet.id')
;
}


protected function configureListFields(ListMapper $listMapper)
{

$listMapper
->add('nom')
->add('description')
->add('dateCreation')
->add('_action', 'actions', array(
'actions' => array(
'show' => array(),
'delete' => array(),
)
))

;
}



}

Вот PrototypeHasMediaAdmin

<?php


namespace AppBundle\Admin;

use Sonata\AdminBundle\Admin\Admin;
use Sonata\AdminBundle\Datagrid\ListMapper;
use Sonata\AdminBundle\Datagrid\DatagridMapper;
use Sonata\AdminBundle\Form\FormMapper;
use Sonata\AdminBundle\Show\ShowMapper;





class PrototypeHasMediaAdmin extends Admin
{

protected function configureFormFields(FormMapper $formMapper)
{
$link_parameters = array();

if ($this->hasParentFieldDescription()) {
$link_parameters = $this->getParentFieldDescription()->getOption('link_parameters', array());
}

if ($this->hasRequest()) {
$context = $this->getRequest()->get('context', null);

if (null !== $context) {
$link_parameters['context'] = $context;
}
}

$formMapper

->add('media', 'sonata_type_model_list', array('required' => false), array(
'link_parameters' => $link_parameters
))


->add('link', 'text', array('required' => false))
->add('commentaire', 'text', array('required' => false))
->add('typeDevice', 'text', array('required' => false))

->add('prototype','entity',array('class' => 'AppBundle\Entity\Prototype'))


;
}

}

Я пробовал решение в Обработка нескольких файловых загрузок в Sonata Admin Bundle но у меня все еще проблема
У меня не может быть возможности загружать во многих местах:
У меня нет кнопки добавления в разделах «tablette» и «mobile». Я только начал использовать Symfony и сонату, и я все еще чувствую растерянность.

вот что у меня сейчас:

Спасибо за помощь