Sylius\Bundle\ResourceBundle\Form\DataTransformer\RecursiveTransformer

Complexity

Total Complexity

6

Size/Duplication

Total Lines	58
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	2

Importance

Changes	1
Bugs	0	Features	0

4 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	4	1
A	transform()	0	8	1
A	reverseTransform()	0	8	1
A	assertTransformationValueType()	0	12	3

<?php

/*
 * This file is part of the Sylius package.
 *
 * (c) Paweł Jędrzejewski
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Sylius\Bundle\ResourceBundle\Form\DataTransformer;

use Doctrine\Common\Collections\Collection;
use Symfony\Component\Form\DataTransformerInterface;
use Symfony\Component\Form\Exception\TransformationFailedException;

/**
 * @author Arkadiusz Krakowiak <arkadiusz.krakowiak@lakion.com>
 */
final class RecursiveTransformer implements DataTransformerInterface
{
    /**
     * @var DataTransformerInterface
     */
    private $decoratedTransformer;

    /**
     * @param DataTransformerInterface $decoratedTransformer
     */
    public function __construct(DataTransformerInterface $decoratedTransformer)
    {
        $this->decoratedTransformer = $decoratedTransformer;
    }

    /**
     * {@inheritDoc}
     */
    public function transform($values)
    {
        $this->assertTransformationValueType($values, Collection::class);

        return $values->map(function ($value) {
            return $this->decoratedTransformer->transform($value);
        });
    }

    /**
     * {@inheritDoc}
     */
    public function reverseTransform($values)
    {
        $this->assertTransformationValueType($values, Collection::class);

        return $values->map(function ($value) {
            return $this->decoratedTransformer->reverseTransform($value);
        });
    }

    /**
     * @param string $value
     * @param string $expectedType
     *
     * @throws TransformationFailedException
     */
    private function assertTransformationValueType($value, $expectedType)
    {
        if (!($value instanceof $expectedType)) {
            throw new TransformationFailedException(
                sprintf(
                    'Expected "%s", but got "%s"',
                    $expectedType,
                    is_object($value) ? get_class($value) : gettype($value)
                )
            );
        }
    }
}