Raphaël G. Git Repositories - airbundle/blob - Transformer/DanceTransformer.php

   1 <?php declare(strict_types=1);
   2
   3 /*
   4  * This file is part of the Rapsys AirBundle package.
   5  *
   6  * (c) Raphaël Gertz <symfony@rapsys.eu>
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Rapsys\AirBundle\Transformer;
  13
  14 use Doctrine\Common\Collections\ArrayCollection;
  15 use Doctrine\Common\Collections\Collection;
  16 use Doctrine\ORM\EntityManagerInterface;
  17
  18 use Symfony\Component\Form\DataTransformerInterface;
  19 use Symfony\Component\Form\Exception\TransformationFailedException;
  20
  21 use Rapsys\AirBundle\Entity\Dance;
  22
  23 /**
  24  * {@inheritdoc}
  25  */
  26 class DanceTransformer implements DataTransformerInterface {
  27         /**
  28          * Public constructor
  29          *
  30          * @param EntityManagerInterface $manager The entity manager
  31          */
  32         public function __construct(private EntityManagerInterface $manager) {
  33         }
  34
  35         /**
  36          * Transforms a dance object array or collection to an int array
  37          *
  38          * @param Dance $dances The dance instances array
  39          * @return array The dance ids
  40          */
  41         public function transform($dances) {
  42                 //Without dances
  43                 if (null === $dances) {
  44                         return [];
  45                 }
  46
  47                 //With collection instance
  48                 if ($dances instanceof Collection) {
  49                         $dances = $dances->toArray();
  50                 }
  51
  52                 //Return dance ids
  53                 return array_map(function ($d) { return $d->getId(); }, $dances);
  54         }
  55
  56         /**
  57          * Transforms an int array to a dance object collection
  58          *
  59          * @param array $ids
  60          * @throws TransformationFailedException when object (dance) is not found
  61          * @return array The dance instances array
  62          */
  63         public function reverseTransform($ids) {
  64                 //Without ids
  65                 if ('' === $ids || null === $ids) {
  66                         $ids = [];
  67                         //With ids
  68                 } else {
  69                         $ids = (array) $ids;
  70                 }
  71
  72                 //Iterate on ids
  73                 foreach($ids as $k => $id) {
  74                         //Replace with dance instance
  75                         $ids[$k] = $this->manager->getRepository(Dance::class)->findOneById($id);
  76
  77                         //Without dance
  78                         if (null === $ids[$k]) {
  79                                 //Throw exception
  80                                 throw new TransformationFailedException(sprintf('Dance with id "%d" does not exist!', $id));
  81                         }
  82                 }
  83
  84                 //Return collection
  85                 return new ArrayCollection($ids);
  86         }
  87 }