function UniquePathAliasConstraintValidator::validate

File

core/lib/Drupal/Core/Path/Plugin/Validation/Constraint/UniquePathAliasConstraintValidator.php, line 45

Class

UniquePathAliasConstraintValidator

Constraint validator for a unique path alias.

Namespace

Code

public function validate($entity, Constraint $constraint) {
  /** @var \Drupal\path_alias\PathAliasInterface $entity */
  $path = $entity->getPath();
  $alias = $entity->getAlias();
  $langcode = $entity->language()
    ->getId();
  $storage = $this->entityTypeManager
    ->getStorage('path_alias');
  $query = $storage->getQuery()
    ->accessCheck(FALSE)
    ->condition('alias', $alias, '=')
    ->condition('langcode', $langcode, '=');
  if (!$entity->isNew()) {
    $query->condition('id', $entity->id(), '<>');
  }
  if ($path) {
    $query->condition('path', $path, '<>');
  }
  if ($result = $query->range(0, 1)
    ->execute()) {
    $existing_alias_id = reset($result);
    $existing_alias = $storage->load($existing_alias_id);
    if ($existing_alias->getAlias() !== $alias) {
      $this->context
        ->buildViolation($constraint->differentCapitalizationMessage, [
        '%alias' => $alias,
        '%stored_alias' => $existing_alias->getAlias(),
      ])
        ->addViolation();
    }
    else {
      $this->context
        ->buildViolation($constraint->message, [
        '%alias' => $alias,
      ])
        ->addViolation();
    }
  }
}