IsNullConstraintValidator.php in Zircon Profile 8.0

Contains \Drupal\Core\Validation\Plugin\Validation\Constraint\IsNullConstraintValidator.

Namespace

Drupal\Core\Validation\Plugin\Validation\Constraint

File

core/lib/Drupal/Core/Validation/Plugin/Validation/Constraint/IsNullConstraintValidator.php

<?php

/**
 * @file
 * Contains \Drupal\Core\Validation\Plugin\Validation\Constraint\IsNullConstraintValidator.
 */
namespace Drupal\Core\Validation\Plugin\Validation\Constraint;

use Drupal\Core\TypedData\ComplexDataInterface;
use Drupal\Core\TypedData\ListInterface;
use Drupal\Core\TypedData\Validation\TypedDataAwareValidatorTrait;
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\Constraints\IsNullValidator;

/**
 * Null constraint validator.
 *
 * Overrides the symfony validator to handle empty Typed Data structures.
 */
class IsNullConstraintValidator extends IsNullValidator {
  use TypedDataAwareValidatorTrait;

  /**
   * {@inheritdoc}
   */
  public function validate($value, Constraint $constraint) {
    $typed_data = $this
      ->getTypedData();
    if (($typed_data instanceof ListInterface || $typed_data instanceof ComplexDataInterface) && $typed_data
      ->isEmpty()) {
      $value = NULL;
    }
    parent::validate($value, $constraint);
  }

}

Classes

Name	Description
IsNullConstraintValidator	Null constraint validator.