symfony2's FOSRestController can't validate an ajax post request - rest

Question

I'm developing a Symfony 2.6.1 application and I have a form I render with the FormTypes and an Entity using annotations as validation. The form is submitted an AJAX POST call to a FOSRestController. The thing is the isValid() function is returning FALSE and I get no error messages...
My FOSRestController looks as follows:
class RestGalleryController extends FOSRestController{
/**
* #Route(requirements={"_format"="json"})
*/
public function postGalleriesAction(\Symfony\Component\HttpFoundation\Request $request){
return $this->processForm(new \Law\AdminBundle\Entity\Gallery());
}
private function processForm(\Law\AdminBundle\Entity\Gallery $gallery){
$response = array('result' => 'Default');
$gallery->setName('TEST'); //Just added this to be sure it was a problem with the validator
$form = $this->createForm(
new \Law\AdminBundle\Form\Type\GalleryType(),
$gallery
);
$form->handleRequest($this->getRequest());
if ($form->isValid()) {
$response['result'] = 'Is Valid!';
}else{
var_dump( $form->getErrorsAsString() );
die;
}
return $response;
}
My Gallery Entity class below:
<?php
namespace Law\AdminBundle\Entity;
use Doctrine\Common\Collections\ArrayCollection;
use Symfony\Component\Validator\Constraints as Assert;
use Doctrine\ORM\Mapping as ORM;
/**
* Gallery
*
* #ORM\Table(name="gallery")
* #ORM\Entity
*/
class Gallery{
/**
* #var string
* #Assert\NotBlank()
* #ORM\Column(name="name", type="text", nullable=false)
*/
private $name;
public function __construct(){
$this->images = new ArrayCollection();
}
/**
* Set name
*
* #param string $name
* #return Gallery
*/
public function setName($name){
$this->name = $name;
return $this;
}
/**
* Get name
*
* #return string
*/
public function getName(){
return $this->name;
}
}
The GalleryType, encapsulating the form:
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;
class GalleryType extends AbstractType
{
/**
* {#inheritdoc}
*/
public function buildForm(FormBuilderInterface $builder, array $options){
$builder->add('name');
}
/**
* {#inheritdoc}
*/
public function setDefaultOptions(OptionsResolverInterface $resolver)
{
$resolver->setDefaults(array(
'data_class' => 'Law\AdminBundle\Entity\Gallery',
'csrf_protection' => false,
));
}
/**
* {#inheritdoc}
*/
public function getName()
{
return 'Gallery';
}
}
Finally, In my app/config/config.yml, the validation is set up as follows:
validation: { enable_annotations: true }
To get the validation error I've also tried with the following function, unsuccessfully :
private function getErrorMessages(\Symfony\Component\Form\Form $form) {
$errors = array();
foreach ($form->getErrors() as $key => $error) {
if ($form->isRoot()) {
$errors['#'][] = $error->getMessage();
} else {
$errors[] = $error->getMessage();
}
}
foreach ($form->all() as $child) {
if (!$child->isValid()) {
$errors[$child->getName()] = $this->getErrorMessages($child);
}
}
return $errors;
}
EDIT:
If I manually use a validator, it works:
$formGallery = new Gallery();
$formGallery->setName($this->getRequest()->get('name', NULL));
$validator = $this->get('validator');
$errors = $validator->validate($formGallery);
So it's like somehow my GalleryType wasn't using the validator.

Answer 1

This is because you are using handleRequest with empty submitted data I guess. In such scenario you such call:
// remove form->handleRequest call
// $form->handleRequest($this->getRequest());
$form->submit($request->request->all());
as handleRequest will auto-submit form unless one field is present. When you handle request with empty array form is not being submitted, thats why isValid return false with no errors.
Note: check if you are sending empty POST array or something like:
`Gallery` => []
If you are sending empty Gallery array everything should work as expected.
Could you paste data that you are sending via AJAX request?