how to "manually" process file upload with symfony2?

I found what I was looking for. To access the files uploaded to symfony from the controller, you just need to do this:

    $request = $this->getRequest();    $file = $request->files->get('file1'); //file1 being the name of my form field for the file    /* if your entity is set up like mine - like they teach you in the symfony2 cookbook     * file is actually a public property so you can just set it like this     **/    $entity->file = $file;     //and here's how you get the original name of that file    $entity->setName( $file->getClientOriginalName() );

First of all, if you want to get an entity with your file after form submit/bind/handleRequest or smth else, you need to provide data_class option in form configuration method (setDefaultOptions etc.). And only after that your form will start to return needed entity after submission.

1)First of All create your entity :

namespace XXX;use Doctrine\ORM\Mapping as ORM;use Symfony\Component\Validator\Constraints as Assert;/** * @ORM\Table() * @ORM\Entity */class Article{    /**     * @var integer $id     *     * @ORM\Column(name="id", type="integer")     * @ORM\Id     * @ORM\GeneratedValue(strategy="AUTO")     */    private $id;      /**     * @var string $image     * @Assert\File( maxSize = "1024k", mimeTypesMessage = "Please upload a valid Image")     * @ORM\Column(name="image", type="string", length=255)     */    private $image;    /**     * Get id     *     * @return integer     */    public function getId()    {        return $this->id;    }    /**     * Set image     *     * @param string $image     */    public function setImage($image)    {        $this->image = $image;    }    /**     * Get image     *     * @return string     */    public function getImage()    {        return $this->image;    }}

2) build your form: So we will then create a simple form type for this Article entity in order to fit into the other forms: ArticleType.php

use Symfony\Component\Form\AbstractType;use Symfony\Component\Form\FormBuilder;class ArticleType extends AbstractType{    public function buildForm(FormBuilder $builder, array $options)    {        $builder            ->add('image')            ->add('...')        ;    }    public function getName()    {        return 'xxx_articletype';    }}

3)Create the controller: The controller below shows you how to manage the whole process: ArticleController.php:

use Symfony\Bundle\FrameworkBundle\Controller\Controller;/** * Article controller. * */class ArticleController extends Controller{    /**     * Finds and displays a Article entity.     *     */    public function showAction($id)    {        $em = $this->getDoctrine()->getEntityManager();        $entity = $em->getRepository('XXXBundle:Article')->find($id);        if (!$entity) {            throw $this->createNotFoundException('Unable to find Article entity.');        }    return $this->render('XXXBundle:Article:show.html.twig', array(            'entity'      => $entity,        ));    }    /**     * Displays a form to create a new Article entity.     *     */    public function newAction()    {        $entity = new Article();        //$entity = $em->getRepository('CliniqueGynecoBundle:Article');        $form   = $this->createForm(new ArticleType(), $entity);        return $this->render('XXXBundle:Article:new.html.twig', array(            'entity' => $entity,            'form'   => $form->createView()        ));    }    /**     * Creates a new Article entity.     *     */    public function createAction()    {        $entity  = new Article();        $request = $this->getRequest();        $form    = $this->createForm(new ArticleType(), $entity);        $form->bindRequest($request);        if ($form->isValid()) {            $em = $this->getDoctrine()->getEntityManager();            $em->persist($entity);            $em->flush();            return $this->redirect($this->generateUrl('article_show', array('id' => $entity->getId())));        }        return $this->render('XXXBundle:Article:new.html.twig', array(            'entity' => $entity,            'form'   => $form->createView()        ));    }    private function createDeleteForm($id)    {        return $this->createFormBuilder(array('id' => $id))            ->add('id', 'hidden')            ->getForm()        ;    }}

4) layout for the upload form: new.html.twig

<form action="{{ path('basearticle_create') }}" method="post" {{ form_enctype(form) }}>    {{ form_widget(form) }}    <p>        <button class="btn btn-primary" type="submit">Create</button>    </p></form>

5) Display layout: show.html.twig

<table> <tr>      <td align="center" valign="top"><img src="{{ asset('upload/' ~ entity.id ~'/' ~ entity.image)}}" alt="" height="525" width="666" /></td></tr></table>

6) Use the « Lifecycle Callbacks » hooking the entity in a « Lifecycle callbacks »: « @ ORM \ HasLifecycleCallbacks »

/** * * @ORM\Table() * @ORM\HasLifecycleCallbacks * @ORM\Entity */class Article{....

7) Added methods to download files:

class Article{   ....................................    public function getFullImagePath() {        return null === $this->image ? null : $this->getUploadRootDir(). $this->image;    }    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/upload/';    }    /**     * @ORM\PrePersist()     * @ORM\PreUpdate()     */    public function uploadImage() {        // the file property can be empty if the field is not required        if (null === $this->image) {            return;        }        if(!$this->id){            $this->image->move($this->getTmpUploadRootDir(), $this->image->getClientOriginalName());        }else{            $this->image->move($this->getUploadRootDir(), $this->image->getClientOriginalName());        }        $this->setImage($this->image->getClientOriginalName());    }    /**     * @ORM\PostPersist()     */    public function moveImage()    {        if (null === $this->image) {            return;        }        if(!is_dir($this->getUploadRootDir())){            mkdir($this->getUploadRootDir());        }        copy($this->getTmpUploadRootDir().$this->image, $this->getFullImagePath());        unlink($this->getTmpUploadRootDir().$this->image);    }    /**     * @ORM\PreRemove()     */    public function removeImage()    {        unlink($this->getFullImagePath());        rmdir($this->getUploadRootDir());    }