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[airbundle] / 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 'class' => $class
54 ]);
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 = $options['class'];
66
67 //Check class
68 if (empty($this->class)) {
69 //Set class from namespace and field name
70 $this->class = str_replace('Form\\Extension\\Type', 'Entity\\' ,__NAMESPACE__).ucfirst($builder->getName());
71 }
72
73 //Set this as model transformer
74 //XXX: clone the model transformer to allow multiple hiddenentitytype field with different class
75 $builder->addModelTransformer(clone $this);
76 }
77
78 /**
79 * Transform data to string
80 *
81 * @param mixed $data The data object
82 * @return string The object id
83 */
84 public function transform($data): string {
85 // Modified from comments to use instanceof so that base classes or interfaces can be specified
86 if ($data === null || !$data instanceof $this->class) {
87 return '';
88 }
89
90 $res = $data->getId();
91
92 return $res;
93 }
94
95 /**
96 * Reverse transformation from string to data object
97 *
98 * @param string $data The object id
99 * @return mixed The data object
100 */
101 public function reverseTransform($data) {
102 if (!$data) {
103 return null;
104 }
105
106 $res = null;
107 try {
108 $rep = $this->dm->getRepository($this->class);
109 $res = $rep->findOneById($data);
110 } catch (\Exception $e) {
111 throw new TransformationFailedException($e->getMessage());
112 }
113
114 if ($res === null) {
115 throw new TransformationFailedException(sprintf('A %s with id %s does not exist!', $this->class, $data));
116 }
117
118 return $res;
119 }
120 }