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<?php |
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namespace Alpixel\Bundle\MediaBundle\DataTransformer; |
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use Alpixel\Bundle\MediaBundle\Entity\Media; |
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use Doctrine\Common\Collections\Collection; |
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use Doctrine\ORM\EntityManager; |
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use Doctrine\ORM\QueryBuilder; |
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use Symfony\Component\Form\DataTransformerInterface; |
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use Symfony\Component\Form\Exception\TransformationFailedException; |
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use Symfony\Component\Form\Exception\UnexpectedTypeException; |
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/** |
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* Data transformation class. |
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* |
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* @author Gregwar <[email protected]> |
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*/ |
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class EntityToIdTransformer implements DataTransformerInterface |
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{ |
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protected $em; |
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private $class; |
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private $multiple; |
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public function __construct(EntityManager $em, $class, $property, $queryBuilder, $multiple) |
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{ |
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if (!(null === $queryBuilder || $queryBuilder instanceof QueryBuilder || $queryBuilder instanceof \Closure)) { |
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throw new UnexpectedTypeException($queryBuilder, 'Doctrine\ORM\QueryBuilder or \Closure'); |
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} |
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if (null === $class) { |
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throw new UnexpectedTypeException($class, 'string'); |
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} |
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$this->em = $em; |
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$this->class = $class; |
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$this->multiple = $multiple; |
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} |
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public function transform($data) |
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{ |
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if ($data instanceof Collection) { |
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return $this->reverseTransform($data); |
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} |
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if (null === $data) { |
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return; |
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} |
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if (!$this->multiple) { |
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return $this->transformSingleEntity($data); |
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} |
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if (is_array($data)) |
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return $data; |
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$return = []; |
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$data = explode('#&#', $data); |
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foreach ($data as $element) { |
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$return[] = $this->transformSingleEntity($element); |
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} |
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return $return; |
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} |
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protected function transformSingleEntity($data) |
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{ |
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if ($data instanceof Media) { |
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return $data->getSecretKey(); |
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} else { |
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return $this->em->getRepository($this->class)->findOneBySecretKey($data); |
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} |
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} |
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public function reverseTransform($data) |
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{ |
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if (!$data) { |
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return; |
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} |
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if (!($data instanceof Collection)) { |
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return $this->transform($data); |
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} |
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$return = []; |
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foreach ($data as $element) { |
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$return[] = $this->reverseTransformSingleEntity($element); |
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} |
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return implode('#&#', $return); |
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} |
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protected function reverseTransformSingleEntity($data) |
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{ |
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if (!($data instanceof Media)) { |
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throw new TransformationFailedException('Can not find entity'); |
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} |
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return $data->getSecretKey(); |
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} |
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} |
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This check looks from parameters that have been defined for a function or method, but which are not used in the method body.