Source of file ValueToDuplicatesTransformer.php
Size: 2,318 Bytes - Last Modified: 2013-07-17T08:22:21+02:00
/home/theseer/Downloads/Symfony/vendor/symfony/symfony/src/Symfony/Component/Form/Extension/Core/DataTransformer/ValueToDuplicatesTransformer.php
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192 | <?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 ValueToDuplicatesTransformer implements DataTransformerInterface { private $keys; public function __construct(array $keys) { $this->keys = $keys; } /** * Duplicates the given value through the array. * * @param mixed $value The value * * @return array The array */ public function transform($value) { $result = array(); foreach ($this->keys as $key) { $result[$key] = $value; } return $result; } /** * Extracts the duplicated value from an array. * * @param array $array * * @return mixed The value * * @throws TransformationFailedException If the given value is not an array or * if the given array can not be transformed. */ public function reverseTransform($array) { if (!is_array($array)) { throw new TransformationFailedException('Expected an array.'); } $result = current($array); $emptyKeys = array(); foreach ($this->keys as $key) { if (!empty($array[$key])) { if ($array[$key] !== $result) { throw new TransformationFailedException( 'All values in the array should be the same' ); } } else { $emptyKeys[] = $key; } } if (count($emptyKeys) > 0) { if (count($emptyKeys) == count($this->keys)) { // All keys empty return null; } throw new TransformationFailedException( sprintf('The keys "%s" should not be empty', implode('", "', $emptyKeys) )); } return $result; } } |