Raphaël G. Git Repositories - airbundle/blob - Form/Extension/Type/HiddenEntityType.php

   1 <?php
   2
   3 namespace Rapsys\AirBundle\Form\Extension\Type;
   4
   5 use Doctrine\Persistence\ManagerRegistry;
   6 use Symfony\Component\Form\DataTransformerInterface;
   7 use Symfony\Component\Form\Exception\TransformationFailedException;
   8 use Symfony\Component\Form\Extension\Core\Type\HiddenType;
   9 use Symfony\Component\Form\FormBuilderInterface;
  10 use Symfony\Component\OptionsResolver\Options;
  11 use Symfony\Component\OptionsResolver\OptionsResolver;
  12
  13 /**
  14  * Hidden Entity Type class definition
  15  *
  16  * @see https://symfony.com/doc/current/form/create_custom_field_type.html
  17  */
  18 class HiddenEntityType extends HiddenType implements DataTransformerInterface {
  19         /**
  20          * @var ManagerRegistry $dm
  21          */
  22         private $dm;
  23
  24         /**
  25          * @var string $class
  26          */
  27         private $class;
  28
  29         /**
  30          * Constructor
  31          *
  32          * @param ManagerRegistry $doctrine
  33          */
  34         public function __construct(ManagerRegistry $doctrine) {
  35                 $this->dm = $doctrine;
  36         }
  37
  38         /**
  39          * Configure options
  40          *
  41          * {@inheritdoc}
  42          */
  43         public function configureOptions(OptionsResolver $resolver) {
  44                 //Call parent
  45                 parent::configureOptions($resolver);
  46
  47                 //Derive "data_class" option from passed "data" object
  48                 $class = function (Options $options) {
  49                         return isset($options['data']) && \is_object($options['data']) ? \get_class($options['data']) : null;
  50                 };
  51
  52                 $resolver->setDefaults([
  53                         #'data_class' => null,
  54                         'class' => $class
  55                 ]);
  56         }
  57
  58         /**
  59          * Build form
  60          *
  61          * {@inheritdoc}
  62          */
  63         public function buildForm(FormBuilderInterface $builder, array $options): void {
  64                 //Set class from options['class']
  65                 $this->class = $options['class'];
  66
  67                 //Without class
  68                 if (empty($this->class)) {
  69                         //Set class from namespace and field name
  70                         $this->class = str_replace('Form\\Extension\\Type', 'Entity\\' ,__NAMESPACE__).ucfirst($builder->getName());
  71                 //With bundle named entity
  72                 } elseif (
  73                         ($pos = strpos($this->class, ':')) !== false &&
  74                         !empty($entity = substr($this->class, $pos + 1))
  75                 ) {
  76                         //Set class from namespace and entity name
  77                         $this->class = str_replace('Form\\Extension\\Type', 'Entity\\' ,__NAMESPACE__).$entity;
  78                 }
  79
  80                 //Set this as model transformer
  81                 //XXX: clone the model transformer to allow multiple hiddenentitytype field with different class
  82                 $builder->addModelTransformer(clone $this);
  83         }
  84
  85         /**
  86          * Transform data to string
  87          *
  88          * @param mixed $data The data object
  89          * @return string The object id
  90          */
  91         public function transform($data): string {
  92                 //Modified from comments to use instanceof so that base classes or interfaces can be specified
  93                 if ($data === null || !$data instanceof $this->class) {
  94                         return '';
  95                 }
  96
  97                 $res = $data->getId();
  98
  99                 return $res;
 100         }
 101
 102         /**
 103          * Reverse transformation from string to data object
 104          *
 105          * @param string $data The object id
 106          * @return mixed The data object
 107          */
 108         public function reverseTransform($data) {
 109                 if (!$data) {
 110                         return null;
 111                 }
 112
 113                 $res = null;
 114                 try {
 115                         $rep = $this->dm->getRepository($this->class);
 116                         $res = $rep->findOneById($data);
 117                 } catch (\Exception $e) {
 118                         throw new TransformationFailedException($e->getMessage());
 119                 }
 120
 121                 if ($res === null) {
 122                         throw new TransformationFailedException(sprintf('A %s with id %s does not exist!', $this->class, $data));
 123                 }
 124
 125                 return $res;
 126         }
 127 }