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| <?php | |
| /** | |
| * @file | |
| * Contains \Drupal\Core\Entity\EntityAutocompleteMatcher. | |
| */ | |
| namespace Drupal\Core\Entity; | |
| use Drupal\Component\Utility\Html; | |
| use Drupal\Component\Utility\Tags; | |
| use Drupal\Core\Entity\EntityReferenceSelection\SelectionPluginManagerInterface; | |
| /** | |
| * Matcher class to get autocompletion results for entity reference. | |
| */ | |
| class EntityAutocompleteMatcher { | |
| /** | |
| * The entity reference selection handler plugin manager. | |
| * | |
| * @var \Drupal\Core\Entity\EntityReferenceSelection\SelectionPluginManagerInterface | |
| */ | |
| protected $selectionManager; | |
| /** | |
| * Constructs a EntityAutocompleteMatcher object. | |
| * | |
| * @param \Drupal\Core\Entity\EntityReferenceSelection\SelectionPluginManagerInterface $selection_manager | |
| * The entity reference selection handler plugin manager. | |
| */ | |
| public function __construct(SelectionPluginManagerInterface $selection_manager) { | |
| $this->selectionManager = $selection_manager; | |
| } | |
| /** | |
| * Gets 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. | |
| * | |
| * @return array | |
| * An array of matched entity labels, in the format required by the AJAX | |
| * autocomplete API (e.g. array('value' => $value, 'label' => $label)). | |
| * | |
| * @throws \Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException | |
| * Thrown when the current user doesn't have access to the specified entity. | |
| * | |
| * @see \Drupal\system\Controller\EntityAutocompleteController | |
| */ | |
| public function getMatches($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. | |
| $key = preg_replace('/\s\s+/', ' ', str_replace("\n", '', trim(Html::decodeEntities(strip_tags($key))))); | |
| // Names containing commas or quotes must be wrapped in quotes. | |
| $key = Tags::encode($key); | |
| $matches[] = array('value' => $key, 'label' => $label); | |
| } | |
| } | |
| } | |
| return $matches; | |
| } | |
| } |