<?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\Core\DataTransformer; use Symfony\Component\Form\DataTransformerInterface; use Symfony\Component\Form\Exception\TransformationFailedException; /** * @author Bernhard Schussek <bschussek@gmail.com> */ class ArrayToPartsTransformer implements DataTransformerInterface { private $partMapping; public function __construct(array $partMapping) { $this->partMapping = $partMapping; } public function transform($array) { if (null === $array) { $array = array(); } if (!is_array($array) ) { throw new TransformationFailedException('Expected an array.'); } $result = array(); foreach ($this->partMapping as $partKey => $originalKeys) { if (empty($array)) { $result[$partKey] = null; } else { $result[$partKey] = array_intersect_key($array, array_flip($originalKeys)); } } return $result; } public function reverseTransform($array) { if (!is_array($array) ) { throw new TransformationFailedException('Expected an array.'); } $result = array(); $emptyKeys = array(); foreach ($this->partMapping as $partKey => $originalKeys) { if (!empty($array[$partKey])) { foreach ($originalKeys as $originalKey) { if (isset($array[$partKey][$originalKey])) { $result[$originalKey] = $array[$partKey][$originalKey]; } } } else { $emptyKeys[] = $partKey; } } if (count($emptyKeys) > 0) { if (count($emptyKeys) === count($this->partMapping)) { // All parts empty return null; } throw new TransformationFailedException( sprintf('The keys "%s" should not be empty', implode('", "', $emptyKeys) )); } return $result; } }