Lug\Bundle\ResourceBundle\Form\DataTransformer\BooleanTransformer

Complexity

Total Complexity

9

Size/Duplication

Total Lines	38
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	1

Test Coverage

Coverage

93.75%

Importance

Changes	1
Bugs	0	Features	0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	transform()	0	15	4
B	reverseTransform()	0	13	5

<?php

/*
 * This file is part of the Lug package.
 *
 * (c) Eric GELOEN <geloen.eric@gmail.com>
 *
 * For the full copyright and license information, please read the LICENSE
 * file that was distributed with this source code.
 */

namespace Lug\Bundle\ResourceBundle\Form\DataTransformer;

use Symfony\Component\Form\DataTransformerInterface;
use Symfony\Component\Form\Exception\TransformationFailedException;

/**
 * @author GeLo <geloen.eric@gmail.com>
 */
class BooleanTransformer implements DataTransformerInterface
{
    /**
     * {@inheritdoc}
     */
    public function transform($value)
    {
        if ($value === null) {
            return;
        }

        if (!is_bool($value)) {
            throw new TransformationFailedException(sprintf(
                'The boolean type expects a boolean or null value, got "%s"',
                is_object($value) ? get_class($value) : gettype($value)
            ));
        }

        return $value;
    }

    /**
     * {@inheritdoc}
     */
    public function reverseTransform($value)
    {
        if ($value === null || $value === '') {
            return false;
        }

        if (!is_scalar($value)
            || ($value = filter_var($value, FILTER_VALIDATE_BOOLEAN, FILTER_NULL_ON_FAILURE)) === null) {
            throw new TransformationFailedException('The boolean value is not valid.');
        }

        return $value;
    }
}