PathAliasConstraintValidator.php in Drupal 8

Namespace

Drupal\path\Plugin\Validation\Constraint

File

core/modules/path/src/Plugin/Validation/Constraint/PathAliasConstraintValidator.php

<?php

namespace Drupal\path\Plugin\Validation\Constraint;

use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;

/**
 * Constraint validator for changing path aliases in pending revisions.
 */
class PathAliasConstraintValidator extends ConstraintValidator implements ContainerInjectionInterface {

  /**
   * The entity type manager.
   *
   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
   */
  private $entityTypeManager;

  /**
   * Creates a new PathAliasConstraintValidator instance.
   *
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
   *   The entity type manager.
   */
  public function __construct(EntityTypeManagerInterface $entity_type_manager) {
    $this->entityTypeManager = $entity_type_manager;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    return new static($container
      ->get('entity_type.manager'));
  }

  /**
   * {@inheritdoc}
   */
  public function validate($value, Constraint $constraint) {
    $entity = !empty($value
      ->getParent()) ? $value
      ->getEntity() : NULL;
    if ($entity && !$entity
      ->isNew() && !$entity
      ->isDefaultRevision()) {

      /** @var \Drupal\Core\Entity\ContentEntityInterface $original */
      $original = $this->entityTypeManager
        ->getStorage($entity
        ->getEntityTypeId())
        ->loadUnchanged($entity
        ->id());
      $entity_langcode = $entity
        ->language()
        ->getId();

      // Only add the violation if the current translation does not have the
      // same path alias.
      if ($original
        ->hasTranslation($entity_langcode)) {
        if ($value->alias != $original
          ->getTranslation($entity_langcode)->path->alias) {
          $this->context
            ->addViolation($constraint->message);
        }
      }
    }
  }

}

Classes

Name	Description
PathAliasConstraintValidator	Constraint validator for changing path aliases in pending revisions.