Overide symfony validation mapping

gistfile1.txt

Symfony 2.5 changed the way validation files were loaded. Here is how to do it now (using the Finder component to dynamically load):

Create a compiler pass:

namespace MyBundle\DependencyInjection\Compiler;

use Symfony\Component\Finder\Finder;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
use Symfony\Component\Config\Resource\DirectoryResource;

class ValidatorPass implements CompilerPassInterface
{
    public function process(ContainerBuilder $container)
    {
        $validatorBuilder = $container->getDefinition('validator.builder');
        $validatorFiles = array();
        $finder = new Finder();

        foreach ($finder->files()->in(__DIR__ . '/../../Resources/config/validation') as $file) {
            $validatorFiles[] = $file->getRealPath();
        }

        $validatorBuilder->addMethodCall('addYamlMappings', array($validatorFiles));

        // add resources to the container to refresh cache after updating a file
        $container->addResource(new DirectoryResource(__DIR__ . '/../../Resources/config/validation'));
    }
}

Then, add this compiler pass in your Bundle:

namespace MyBundle;

use Symfony\Component\HttpKernel\Bundle\Bundle;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use MyBundle\DependencyInjection\Compiler\ValidatorPass;

class MyBundle extends Bundle
{
    // . . . .

    public function build(ContainerBuilder $container)
    {
        parent::build($container);

        $container->addCompilerPass(new ValidatorPass());
    }

    // . . . .      
}