aleph1.co.uk Git - yaffs-website/blob - web/core/lib/Drupal/Core/Validation/Plugin/Validation/Constraint/NotNullConstraintValidator.php

   1 <?php
   2
   3 namespace Drupal\Core\Validation\Plugin\Validation\Constraint;
   4
   5 use Drupal\Core\TypedData\ComplexDataInterface;
   6 use Drupal\Core\TypedData\ListInterface;
   7 use Drupal\Core\TypedData\Validation\TypedDataAwareValidatorTrait;
   8 use Symfony\Component\Validator\Constraint;
   9 use Symfony\Component\Validator\Constraints\NotNullValidator;
  10
  11 /**
  12  * NotNull constraint validator.
  13  *
  14  * Overrides the symfony validator to handle empty Typed Data structures.
  15  */
  16 class NotNullConstraintValidator extends NotNullValidator {
  17
  18   use TypedDataAwareValidatorTrait;
  19
  20   /**
  21    * {@inheritdoc}
  22    */
  23   public function validate($value, Constraint $constraint) {
  24     $typed_data = $this->getTypedData();
  25     if (($typed_data instanceof ListInterface || $typed_data instanceof ComplexDataInterface) && $typed_data->isEmpty()) {
  26       $value = NULL;
  27     }
  28     parent::validate($value, $constraint);
  29   }
  30
  31 }