class LinkTypeConstraintValidator in Drupal 8

Constraint validator for links receiving data allowed by its settings.

Hierarchy

• class \Drupal\link\Plugin\Validation\Constraint\LinkTypeConstraintValidator extends \Symfony\Component\Validator\ConstraintValidator

File

core/modules/link/src/Plugin/Validation/Constraint/LinkTypeConstraintValidator.php, line 12

Namespace

Drupal\link\Plugin\Validation\Constraint

class LinkTypeConstraintValidator extends ConstraintValidator {

  /**
   * {@inheritdoc}
   */
  public function validate($value, Constraint $constraint) {
    if (isset($value)) {
      $uri_is_valid = TRUE;

      /** @var $link_item \Drupal\link\LinkItemInterface */
      $link_item = $value;
      $link_type = $link_item
        ->getFieldDefinition()
        ->getSetting('link_type');

      // Try to resolve the given URI to a URL. It may fail if it's schemeless.
      try {
        $url = $link_item
          ->getUrl();
      } catch (\InvalidArgumentException $e) {
        $uri_is_valid = FALSE;
      }

      // If the link field doesn't support both internal and external links,
      // check whether the URL (a resolved URI) is in fact violating either
      // restriction.
      if ($uri_is_valid && $link_type !== LinkItemInterface::LINK_GENERIC) {
        if (!($link_type & LinkItemInterface::LINK_EXTERNAL) && $url
          ->isExternal()) {
          $uri_is_valid = FALSE;
        }
        if (!($link_type & LinkItemInterface::LINK_INTERNAL) && !$url
          ->isExternal()) {
          $uri_is_valid = FALSE;
        }
      }
      if (!$uri_is_valid) {
        $this->context
          ->addViolation($constraint->message, [
          '@uri' => $link_item->uri,
        ]);
      }
    }
  }

}

Members

Name	Modifiers	Type	Description	Overrides
LinkTypeConstraintValidator::validate	public	function	Checks if the passed value is valid.