/**
* {@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;
}