public function ActionLinkController::flag in Flag 8.4

Performs a flagging when called via a route.

Parameters

\Drupal\flag\FlagInterface $flag: The flag entity.

int $entity_id: The flaggable entity ID.

Return value

\Drupal\Core\Ajax\AjaxResponse|null The response object, only if successful.

See also

\Drupal\flag\Plugin\Reload

1 string reference to 'ActionLinkController::flag'

flag.routing.yml in ./flag.routing.yml

flag.routing.yml

File

src/Controller/ActionLinkController.php, line 73

Class

ActionLinkController

Controller responses to flag and unflag action links.

Namespace

Drupal\flag\Controller

Code

public function flag(FlagInterface $flag, $entity_id) {

  /* @var \Drupal\Core\Entity\EntityInterface $entity */
  $entity = $this->flagService
    ->getFlaggableById($flag, $entity_id);
  try {
    $this->flagService
      ->flag($flag, $entity);
  } catch (\LogicException $e) {

    // Fail silently so we return to the entity, which will show an updated
    // link for the existing state of the flag.
  }
  return $this
    ->generateResponse($flag, $entity, $flag
    ->getMessage('flag'));
}