/**
* {@inheritdoc}
*/
public function build($entity_type_id, $entity_id, $flag_id) {
$entity = $this->entityTypeManager->getStorage($entity_type_id)->load($entity_id);
$flag = $this->flagService->getFlagById($flag_id);
$link_type_plugin = $flag->getLinkTypePlugin();
$link = $link_type_plugin->getLink($flag, $entity);
return $link;
}
/**
* Performs a flagging when called via a route.
*
* @param \Drupal\flag\FlagInterface $flag
* The flag entity.
* @param int $entity_id
* The flaggable entity ID.
* @param \Symfony\Component\HttpFoundation\Request $request
* The request.
*
* @return \Symfony\Component\HttpFoundation\RedirectResponse
* The response object.
*
* @see \Drupal\flag\Plugin\Reload
*/
public function unflag(FlagInterface $flag, $entity_id, Request $request) {
/* @var \Drupal\Core\Entity\EntityInterface $entity */
$entity = $this->flagService->getFlaggableById($flag, $entity_id);
try {
$this->flagService->unflag($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, $request);
}