validation.yml file is ignored - php

Question

I'm new to symfony, and I'm currently trying to understand Symfony3.
While validation through annotations works fine, I can't activate validation through validation.yml file.
In my app/config/config.yml, I changed this line :
framework:
validation: { enabled: true, enable_annotations: false }
My src/AppBundle/Resources/config/validation.yml is :
# src/AppBundle/Resources/config/validation.yml
AppBundle\Entity\TaskSetClass:
properties:
taskName:
- NotBlank: ~
dueDate:
- NotBlank: ~
- Type: \DateTime
I added a extension file :
<?php
// src/AppBundle/DependencyInjection/AppExtension.php
namespace AppBundle\DependencyInjection;
use Symfony\Component\HttpKernel\DependencyInjection\Extension;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Loader;
use Symfony\Component\Config\FileLocator;
use Symfony\Component\Finder\Finder;
/* */
class AppExtension extends Extension
{
public function load(array $configs, ContainerBuilder $container)
{
$container=new ContainerBuilder();
// Services
$loader=new Loader\YamlFileLoader($container, new FileLocator(__DIR__.'/../../../app/config'));
$loader->load('services.yml');
// Validation
// Commented : No "validator.mapping.loader.yaml_files_loader.mapping_files" parameter.
//$yamlMappingFiles=$container->getParameter('validator.mapping.loader.yaml_files_loader.mapping_files');
$finder=new Finder();
foreach($finder->files()->in(__DIR__.'/../../../app/Resources/config') as $file)
{
$filePath=$file->getRealPath();
if(preg_match('#\.yml$#',$filePath)===1)
{
$yamlMappingFiles[]=$filePath;
}
}
$container->setParameter('validator.mapping.loader.yaml_files_loader.mapping_files', $yamlMappingFiles);
}
}
A dump of the container after the setParameter() in appExtension.php shows the command has succeeded :
[parameterBag:protected] => Symfony\Component\DependencyInjection\ParameterBag\ParameterBag Object
(
[parameters:protected] => Array
(
[validator.mapping.loader.yaml_files_loader.mapping_files] => Array
(
[0] => /mnt/400Go/www/sy1/app/Resources/config/validation.yml
)
)
[resolved:protected] =>
)
In my form controller, if I list the constraints :
[...]
if($form->isSubmitted())
{
if($form->isValid())
{
$metadata=$this->container
->get('validator')
->getMetadataFor('AppBundle\Entity\TaskSetClass');
$propertiesMetadata=$metadata->properties;
$constraints=array();
foreach ($propertiesMetadata as $propertyMetadata)
{
$constraints[$propertyMetadata->name]=$property->constraints;
}
echo'<pre>Constraints : ';
print_r($constraints);
echo'</pre>';
die();
[...]
... the array is empty. so the file seems to be loaded, but the constraints are ignored.
Did anyone encountered this error? It may comes from a difference between symfony 2 and 3.

Answer 1

[SOLVED] The validation file was not in the correct directory. It was supposed to be in AppBundle/Resources/config and I had it into app/Resouces/config. Works fine now.