CODEWITHSUNDEEP
formssymfonyfile-uploadcrud
user8069069
user8069069

Reputation:

CRUD using form: Updating

I've been getting errors when I press update.
I'm using the same code as adding.
I think it may be the picture upload that is causing the problem.

Here's the error:

The form's view data is expected to be an instance of class Symfony\Component\HttpFoundation\File\File, but is a(n) string.
You can avoid this error by setting the "data_class" option to null or by adding a view transformer that transforms a(n) string to an instance of Symfony\Component\HttpFoundation\File\File.

My Controller: 

public function updateAction(Request $request ,$id)
{
  $em = $this->getDoctrine()->getManager();
  $forum = $em->getRepository("ForumBundle:Forum")->find($id);
  $forum->setModifiee(new \DateTime('now'));
  $form = $this->createForm(ForumType::class, $forum);
  $form->handleRequest($request);
  if ($form->isSubmitted() && $form->isValid()) {
    $file = $form['image']->getData();
    $file->move("images/", $file->getClientOriginalName());
    $forum->setImage("images/" . $file->getClientOriginalName());
    $em->persist($forum);
    $em->flush();
    return $this->redirectToRoute('forum_show');
  }
  return $this->render("@Forum/Sujet/Update_topic.html.twig", array("form" => $form->createView()));
}

My Form:

public function buildForm(FormBuilderInterface $builder, array $options)
{
  $builder->add('titre')
          ->add('tags')
          ->add('image', FileType::class,array('attr' => array(
                'class'=>'form-control'
              //'class'=>'btn btn-default btn-file'
          )))
          ->add('blog',TextareaType::class)
          ->add('Ajouter',SubmitType::class,array('attr' => array(
                'class'=>'theme_button color3 wide_button'
          )));
}

These are my includes:

namespace ForumBundle\Controller; 
use blackknight467\StarRatingBundle\Form\RatingType; 
use ForumBundle\Form\RateType; 
use ForumBundle\Entity\Commentaire; 
use ForumBundle\Entity\Forum; 
use ForumBundle\Entity\Rating; 
use ForumBundle\Form\CommentaireType; 
use ForumBundle\Form\ForumType; 
use Symfony\Bundle\FrameworkBundle\Controller\Controller; 
use Symfony\Component\Form\Extension\Core\Type\SubmitType; 
use Symfony\Component\HttpFoundation\Request; 
use Symfony\Component\HttpFoundation\File\File;

Upvotes: 0

Views: 553

Answers (2)

Grzegorz Brzęczyszczykiewicz
Grzegorz Brzęczyszczykiewicz

Reputation: 609

In symfony 2.8 in updateAction just correct define fileType for $id I think it should look like this:

public function updateAction(Request $request ,$id) { 

     $id->setImage( 
            new File($this->getParameter('images_directory').'/'.$id->getImage()
     ));

...

Upvotes: 0

Weenesta - Mathieu Dormeval
Weenesta - Mathieu Dormeval

Reputation: 937

According to the Symfony documentation : How to upload file, you have to set a File Object into Image setter, not a string. That'a why you have this error :

The form's view data is expected to be an instance of class Symfony\Component\HttpFoundation\File\File, but is a(n) string. You can avoid this error by setting the "data_class" option to null or by adding a view transformer that transforms a(n) string to an instance of Symfony\Component\HttpFoundation\File\File.

The rigth way to accomplish this is to set a new File instance to your image on your controller object, like this : 

use Symfony\Component\HttpFoundation\File\File;
// ...

public function updateAction(Request $request, $id)
{
  $em = $this->getDoctrine()->getManager();
  $forum = $em->getRepository("ForumBundle:Forum")->find($id);
  $forum->setModifiee(new \DateTime('now'));
  $form = $this->createForm(ForumType::class, $forum);
  $form->handleRequest($request);
  if ($form->isSubmitted() && $form->isValid()) 
  {
     $file = $form['image']->getData();
     $file->move("images/", $file->getClientOriginalName());

     $forum->setImage("images/" . $file->getClientOriginalName());

     $forum->setImage(new File($this->getParameter('images_directory').'/'.$forum->getImage()));

     $em->persist($forum);
     $em->flush();
     return $this->redirectToRoute('forum_show');
  }
}

// ...

The parameter images_directory have to be set in the services.yml file, according to the symfony's documentation :

# config/services.yaml

# ...
parameters:
   # depending of your symfony version 
   images_directory: '%kernel.project_dir%/web|public/uploads/images'

Another way is to use an uploader service or a dedicated bundle like : VichUploaderBundle or OneupUploaderBundle

Hope this help and have a nice day !!!

Upvotes: 1

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