[2.x] Upload de plusieurs fichiers

Bonjour à tous,

Je débute avec Symfony2 et j'essaie de développer une application qui consiste à créer des projets et leur associer une entreprise. L'utilisateur peut créer, éditer et visualiser les données dans un tableau.

j'ai un problème qui me bloque depuis plusieurs jours. Dans un formulaire, j'aimerais que l'utilisateur puisse uploader plusieurs fichiers via un champ "file". Les fichiers sont stockés sur le serveur et leurs URL dans un champ de la base de donnée.
Actuellement, j'ai cette erreur :

Code:

Expected argument of type "string or Symfony\Component\Form\FormTypeInterface", "array" given

Voici mon code :
Entity :

Code:

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<?php
 
namespace Vestnieciba\ComDbBundle\Entity;
 
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
 
/**
 * Vestnieciba\ComDbBundle\Entity\Project
 *
 * @ORM\Table()
 * @ORM\HasLifecycleCallbacks
 * @ORM\Entity(repositoryClass="Vestnieciba\ComDbBundle\Entity\ProjectRepository")
 */
class Project
{
/**
     * @var object $files
     * @Assert\File()
     * @ORM\Column(type="array", length=255, nullable=true)
     */
    public $files;
/**
     * Set files
     *
     * @param object $files
     */
    public function setFiles(array $files)
    {
        $this->files = $files;
    }
 
    /**
     * Get files
     *
     * @return object 
     */
    public function getFiles()
    {
        return $this->files;
    }
 
    public function __construct() 
    {
        $files = array();
    }
/**
    * Upload files
    *
    */
    public function getFullFilesPath() {
        return null === $this->files ? null : $this->getUploadRootDir(). $this->files;
    }
 
    protected function getUploadRootDir() {
        // the absolute directory path where uploaded documents should be saved
        return $this->getTmpUploadRootDir().$this->getId()."/";
    }
 
    protected function getTmpUploadRootDir() {
        // the absolute directory path where uploaded documents should be saved
        return __DIR__ . '/../../../../web/uploads/files/';
    }
 
    /**
     * @ORM\PrePersist()
     * @ORM\PreUpdate()
     */
    public function uploadFiles() {
        // the files property can be empty if the field is not required
        if (null === $this->files) {
            return;
        }
        if(!$this->id){
            $this->files->move($this->getTmpUploadRootDir(), $this->files->getClientOriginalName());
        }else{
            $this->files->move($this->getUploadRootDir(), $this->files->getClientOriginalName());
        }
        $this->setFiles($this->files->getClientOriginalName());
    }
 
    /**
     * @ORM\PostPersist()
     */
    public function moveFiles()
    {
        if (null === $this->files) {
            return;
        }
        if(!is_dir($this->getUploadRootDir())){
            mkdir($this->getUploadRootDir());
        }
        copy($this->getTmpUploadRootDir().$this->files, $this->getFullFilesPath());
        unlink($this->getTmpUploadRootDir().$this->files);
    }
 
    /**
     * @ORM\PreRemove()
     */
    public function removeFiles()
    {
        unlink($this->getFullFilesPath());
        rmdir($this->getUploadRootDir());
    }
}

Controller :

Code:

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<?php
 
namespace Vestnieciba\ComDbBundle\Controller;
 
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\HttpFoundation\File\UploadedFile;
use Vestnieciba\ComDbBundle\Entity\Project;
use Vestnieciba\ComDbBundle\Form\ProjectType;
use Symfony\Component\Finder\Finder;
 
/**
 * Project controller.
 *
 */
class ProjectController extends Controller
{
    /**
     * Lists all Project entities.
     *
     */
    public function indexAction()
    {
        $em = $this->getDoctrine()->getEntityManager();
 
        $entities = $em->getRepository('VestniecibaComDbBundle:Project')->findAll();
 
        return $this->render('VestniecibaComDbBundle:Project:index.html.twig', array(
            'entities'  => $entities
        ));
    }
 
    /**
     * Finds and displays a Project entity.
     *
     */
    public function showAction($id)
    {
        $em = $this->getDoctrine()->getEntityManager();
 
        $entity = $em->getRepository('VestniecibaComDbBundle:Project')->find($id);
 
        if (!$entity) {
            throw $this->createNotFoundException('Unable to find Project entity.');
        }
 
        $deleteForm = $this->createDeleteForm($id);
 
        return $this->render('VestniecibaComDbBundle:Project:show.html.twig', array(
            'entity'      => $entity,
            'delete_form' => $deleteForm->createView(),
 
        ));
    }
 
    /**
     * Displays a form to create a new Project entity.
     *
     */
    public function newAction()
    {
        $entity = new Project();
        $form   = $this->createForm(new ProjectType(), $entity);
 
        return $this->render('VestniecibaComDbBundle:Project:new.html.twig', array(
            'entity' => $entity,
            'form'   => $form->createView()
        ));
    }
 
    /**
     * Creates a new Project entity.
     *
     */
   public function createAction()
    {
        $entity  = new Project();
        $form = $this->createForm(new Create(), $entity);
        $formView = $form->createView();
        $formView->getChild('files')->set('full_name', 'ProjectType[files][]');
 
        $request = $this->getRequest();
        if($request->getMethod() == "POST")
        {
            $form->bindRequest($request);
 
            if ($form->isValid()) {
            $em = $this->getDoctrine()->getEntityManager();
            $em->persist($entity);
            $em->flush();
 
            return $this->redirect($this->generateUrl('project_show', array('id' => $entity->getId())));
 
            }
        }        
 
        return $this->render('VestniecibaComDbBundle:Project:new.html.twig', array("form" => $formView));
    }
 
    /**
     * Displays a form to edit an existing Project entity.
     *
     */
    public function editAction($id)
    {
        $em = $this->getDoctrine()->getEntityManager();
 
        $entity = $em->getRepository('VestniecibaComDbBundle:Project')->find($id);
 
        if (!$entity) {
            throw $this->createNotFoundException('Unable to find Project entity.');
        }
 
        $editForm = $this->createForm(new ProjectType(), $entity);
        $deleteForm = $this->createDeleteForm($id);
 
        return $this->render('VestniecibaComDbBundle:Project:edit.html.twig', array(
            'entity'      => $entity,
            'edit_form'   => $editForm->createView(),
            'delete_form' => $deleteForm->createView(),
        ));
    }
 
    /**
     * Edits an existing Project entity.
     *
     */
    public function updateAction($id)
    {
        $em = $this->getDoctrine()->getEntityManager();
 
        $entity = $em->getRepository('VestniecibaComDbBundle:Project')->find($id);
 
        if (!$entity) {
            throw $this->createNotFoundException('Unable to find Project entity.');
        }
 
        $editForm   = $this->createForm(new ProjectType(), $entity);
        $deleteForm = $this->createDeleteForm($id);
 
        $request = $this->getRequest();
 
        $editForm->bindRequest($request);
 
        if ($editForm->isValid()) {
            $em->persist($entity);
            $em->flush();
 
            return $this->redirect($this->generateUrl('project_edit', array('id' => $id)));
        }
 
        return $this->render('VestniecibaComDbBundle:Project:edit.html.twig', array(
            'entity'      => $entity,
            'edit_form'   => $editForm->createView(),
            'delete_form' => $deleteForm->createView(),
        ));
    }
 
    /**
     * Deletes a Project entity.
     *
     */
    public function deleteAction($id)
    {
        $form = $this->createDeleteForm($id);
        $request = $this->getRequest();
 
        $form->bindRequest($request);
 
        if ($form->isValid()) {
            $em = $this->getDoctrine()->getEntityManager();
            $entity = $em->getRepository('VestniecibaComDbBundle:Project')->find($id);
 
            if (!$entity) {
                throw $this->createNotFoundException('Unable to find Project entity.');
            }
 
            $em->remove($entity);
            $em->flush();
        }
 
        return $this->redirect($this->generateUrl('project'));
    }
 
    private function createDeleteForm($id)
    {
        return $this->createFormBuilder(array('id' => $id))
            ->add('id', 'hidden')
            ->getForm()
        ;
    }
}

Le formulaire :

Code:

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<?php
 
namespace Vestnieciba\ComDbBundle\Form;
 
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilder;
 
 
class ProjectType extends AbstractType
{
    public function buildForm(FormBuilder $builder, array $options)
    {
        $builder->add('files', 'file', array('label' => 'Files', 'required' => false, 'multiple' => true));
    }
 
    public function getName()
    {
        return 'vestnieciba_comdbbundle_projecttype';
    }
}

et la vue Twig :

Code:

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{% extends "::base.html.twig" %}
{% block body %}
<h1>Project edit</h1>
 
<form action="{{ path('project_update', { 'id': entity.id }) }}" method="post" {{ form_enctype(edit_form) }}>
    {{ form_errors(edit_form) }}
 
    <ol>
      <li>
        {{ form_label(edit_form.files, "Files") }}
        {{ form_errors(edit_form.files) }}
        {{ form_widget(edit_form.files) }}
      </li>
    </ol>
 
    {{ form_rest(edit_form) }}
</form>
 
<ul class="record_actions">
    <li>
        <a href="{{ path('project') }}">
            Back to the list
        </a>
    </li>
    <li>
        <form action="{{ path('project_delete', { 'id': entity.id }) }}" method="post">
            {{ form_widget(delete_form) }}
            <button type="submit">Delete</button>
        </form>
    </li>
</ul>
{% endblock %}

J'ai réussi avec 1 seul fichier mais avec plusieurs je n'arrive à rien.

Merci d'avance pour votre aide !