/** * {@inheritdoc} */ public function identitiesCanRegister($entity_type, array $entity_ids) { if (in_array($entity_type, $this->getIdentityTypes())) { if ($this->duplicateRegistrantsAllowed()) { return $entity_ids; } else { $options = ['target_type' => $entity_type, 'handler' => 'rng_register', 'handler_settings' => ['event_entity_type' => $this->getEvent()->getEntityTypeId(), 'event_entity_id' => $this->getEvent()->id()]]; /* @var $selection \Drupal\Core\Entity\EntityReferenceSelection\SelectionInterface */ $selection = $this->selectionPluginManager->getInstance($options); return $selection->validateReferenceableEntities($entity_ids); } } return []; }
/** * Returns matched labels based on a given search string. * * @param string $target_type * The ID of the target entity type. * @param string $selection_handler * The plugin ID of the entity reference selection handler. * @param array $selection_settings * An array of settings that will be passed to the selection handler. * @param string $string * (optional) The label of the entity to query by. * * @throws \Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException * Thrown when the current user doesn't have access to the specifies entity. * * @return array * An array of matched entity labels, in the format required by the AJAX * autocomplete API (e.g. array('value' => $value, 'label' => $label)). * * @see \Drupal\system\Controller\EntityAutocompleteController */ public function getMatches($target_type, $selection_handler, $selection_settings, $string = '') { $matches = array(); $options = array('target_type' => $target_type, 'handler' => $selection_handler, 'handler_settings' => $selection_settings); $handler = $this->selectionManager->getInstance($options); if (isset($string)) { // Get an array of matching entities. $match_operator = !empty($selection_settings['match_operator']) ? $selection_settings['match_operator'] : 'CONTAINS'; $entity_labels = $handler->getReferenceableEntities($string, $match_operator, 10); // Loop through the entities and convert them into autocomplete output. foreach ($entity_labels as $values) { foreach ($values as $entity_id => $label) { $key = "{$label} ({$entity_id})"; // Strip things like starting/trailing white spaces, line breaks and // tags. $key = preg_replace('/\\s\\s+/', ' ', str_replace("\n", '', trim(String::decodeEntities(strip_tags($key))))); // Names containing commas or quotes must be wrapped in quotes. $key = Tags::encode($key); $matches[] = array('value' => $key, 'label' => $label); } } } return $matches; }