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();
        }
    }
}