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| 1 | <?php |
| 2 | |
| 3 | namespace Drupal\crm\Plugin\Validation\Constraint; |
| 4 | |
| 5 | use Drupal\Core\DependencyInjection\ContainerInjectionInterface; |
| 6 | use Drupal\Core\Entity\EntityTypeManagerInterface; |
| 7 | use Symfony\Component\DependencyInjection\ContainerInterface; |
| 8 | use Symfony\Component\Validator\Constraint; |
| 9 | use Symfony\Component\Validator\ConstraintValidator; |
| 10 | |
| 11 | /** |
| 12 | * Validates that a field is unique for the given entity type. |
| 13 | */ |
| 14 | class UniqueReferenceConstraintValidator extends ConstraintValidator implements ContainerInjectionInterface { |
| 15 | |
| 16 | /** |
| 17 | * The entity type manager. |
| 18 | * |
| 19 | * @var \Drupal\Core\Entity\EntityTypeManagerInterface |
| 20 | */ |
| 21 | protected $entityTypeManager; |
| 22 | |
| 23 | /** |
| 24 | * Creates a new TaxonomyTermHierarchyConstraintValidator instance. |
| 25 | * |
| 26 | * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager |
| 27 | * The entity type manager. |
| 28 | */ |
| 29 | public function __construct(EntityTypeManagerInterface $entity_type_manager) { |
| 30 | $this->entityTypeManager = $entity_type_manager; |
| 31 | } |
| 32 | |
| 33 | /** |
| 34 | * {@inheritdoc} |
| 35 | */ |
| 36 | public static function create(ContainerInterface $container) { |
| 37 | return new static( |
| 38 | $container->get('entity_type.manager') |
| 39 | ); |
| 40 | } |
| 41 | |
| 42 | /** |
| 43 | * {@inheritdoc} |
| 44 | */ |
| 45 | public function validate($items, Constraint $constraint) { |
| 46 | if (!$item = $items->first()) { |
| 47 | return; |
| 48 | } |
| 49 | $field_name = $items->getFieldDefinition()->getName(); |
| 50 | /** @var \Drupal\Core\Entity\EntityInterface $entity */ |
| 51 | $entity = $items->getEntity(); |
| 52 | $entity_type_id = $entity->getEntityTypeId(); |
| 53 | $id_key = $entity->getEntityType()->getKey('id'); |
| 54 | $id = (int) $items->getEntity()->id(); |
| 55 | $target_id = $item->target_id; |
| 56 | |
| 57 | $value_taken = (bool) $this->entityTypeManager->getStorage($entity_type_id) |
| 58 | ->getQuery() |
| 59 | // The id could be NULL, so we cast it to 0 in that case. |
| 60 | ->condition($id_key, $id, '<>') |
| 61 | ->condition($field_name, $target_id) |
| 62 | ->accessCheck(FALSE) |
| 63 | ->range(0, 1) |
| 64 | ->count() |
| 65 | ->execute(); |
| 66 | |
| 67 | if ($value_taken) { |
| 68 | $this->context->addViolation($constraint->message, [ |
| 69 | '@id' => $target_id, |
| 70 | '@entity_type' => $entity->getEntityType()->getSingularLabel(), |
| 71 | '@field_name' => mb_strtolower($items->getFieldDefinition()->getLabel()), |
| 72 | ]); |
| 73 | } |
| 74 | } |
| 75 | |
| 76 | } |