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✏️ Editing: FormTypeValidatorExtension.php

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Form\Extension\Validator\Type;

use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\Form\Extension\Validator\ViolationMapper\ViolationMapper;
use Symfony\Component\Form\Extension\Validator\EventListener\ValidationListener;
use Symfony\Component\Validator\ValidatorInterface;
use Symfony\Component\OptionsResolver\Options;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;

/**
 * @author Bernhard Schussek <bschussek@gmail.com>
 */
class FormTypeValidatorExtension extends BaseValidatorExtension
{
    /**
     * @var ValidatorInterface
     */
    private $validator;

/**
     * @var ViolationMapper
     */
    private $violationMapper;

public function __construct(ValidatorInterface $validator)
    {
        $this->validator = $validator;
        $this->violationMapper = new ViolationMapper();
    }

/**
     * {@inheritdoc}
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->addEventSubscriber(new ValidationListener($this->validator, $this->violationMapper));
    }

/**
     * {@inheritdoc}
     */
    public function setDefaultOptions(OptionsResolverInterface $resolver)
    {
        parent::setDefaultOptions($resolver);

// Constraint should always be converted to an array
        $constraintsNormalizer = function (Options $options, $constraints) {
            return is_object($constraints) ? array($constraints) : (array) $constraints;
        };

$resolver->setDefaults(array(
            'error_mapping'              => array(),
            'constraints'                => array(),
            'cascade_validation'         => false,
            'invalid_message'            => 'This value is not valid.',
            'invalid_message_parameters' => array(),
            'extra_fields_message'       => 'This form should not contain extra fields.',
            'post_max_size_message'      => 'The uploaded file was too large. Please try to upload a smaller file.',
        ));

$resolver->setNormalizers(array(
            'constraints'       => $constraintsNormalizer,
        ));
    }

/**
     * {@inheritdoc}
     */
    public function getExtendedType()
    {
        return 'form';
    }
}

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