class AutocompleteController in Existing Values Autocomplete Widget 8

Class AutocompleteController.

Hierarchy

• class \Drupal\Core\Controller\ControllerBase implements ContainerInjectionInterface uses LoggerChannelTrait, MessengerTrait, LinkGeneratorTrait, RedirectDestinationTrait, UrlGeneratorTrait, StringTranslationTrait
  • class \Drupal\existing_values_autocomplete_widget\Controller\AutocompleteController

File

src/Controller/AutocompleteController.php, line 14

Namespace

Drupal\existing_values_autocomplete_widget\Controller

class AutocompleteController extends ControllerBase {

  /**
   * Handleautocomplete.
   *
   * @return string
   *   Return Hello string.
   */
  public function handleAutocomplete(Request $request, $field_name = NULL, $count = 15, $entity_type_id = NULL) {
    $existing_values = [];
    $entity_type_id = $entity_type_id ?: $request->query
      ->get('entity_type_id') ?: 'node';
    if ($input = $request->query
      ->get('q')) {
      $typed_string = Tags::explode($input);
      $typed_string = Unicode::strtolower(array_pop($typed_string));
      $entity_type_manager = \Drupal::entityTypeManager();
      $table_mapping = $entity_type_manager
        ->getStorage($entity_type_id)
        ->getTableMapping();
      $field_table = $table_mapping
        ->getFieldTableName($field_name);
      $field_storage_definitions = \Drupal::service('entity_field.manager')
        ->getFieldStorageDefinitions($entity_type_id)[$field_name];
      $field_column = $table_mapping
        ->getFieldColumnName($field_storage_definitions, 'value');
      $query = \Drupal::database()
        ->select($field_table, 'f');
      $query
        ->fields('f', [
        'entity_id',
        $field_column,
      ]);
      $query
        ->condition($field_column, $query
        ->escapeLike($typed_string) . '%', 'LIKE');
      $query
        ->distinct(TRUE);
      $results = $query
        ->execute()
        ->fetchAllKeyed();
      foreach ($results as $id => $value) {
        $entity = $entity_type_manager
          ->getStorage($entity_type_id)
          ->load($id);
        if ($entity
          ->access('edit')) {
          $existing_values[] = [
            'value' => $value,
            'label' => $value,
          ];
        }
      }
    }
    return new JsonResponse($existing_values);
  }

}

Members

Name	Modifiers	Type	Description	Overrides
AutocompleteController::handleAutocomplete	public	function	Handleautocomplete.
ControllerBase::$configFactory	protected	property	The configuration factory.
ControllerBase::$currentUser	protected	property	The current user service.	1
ControllerBase::$entityFormBuilder	protected	property	The entity form builder.
ControllerBase::$entityManager	protected	property	The entity manager.
ControllerBase::$entityTypeManager	protected	property	The entity type manager.
ControllerBase::$formBuilder	protected	property	The form builder.	2
ControllerBase::$keyValue	protected	property	The key-value storage.	1
ControllerBase::$languageManager	protected	property	The language manager.	1
ControllerBase::$moduleHandler	protected	property	The module handler.	2
ControllerBase::$stateService	protected	property	The state service.
ControllerBase::cache	protected	function	Returns the requested cache bin.
ControllerBase::config	protected	function	Retrieves a configuration object.
ControllerBase::container	private	function	Returns the service container.
ControllerBase::create	public static	function	Instantiates a new instance of this class. Overrides ContainerInjectionInterface::create	40
ControllerBase::currentUser	protected	function	Returns the current user.	1
ControllerBase::entityFormBuilder	protected	function	Retrieves the entity form builder.
ControllerBase::entityManager Deprecated	protected	function	Retrieves the entity manager service.
ControllerBase::entityTypeManager	protected	function	Retrieves the entity type manager.
ControllerBase::formBuilder	protected	function	Returns the form builder service.	2
ControllerBase::keyValue	protected	function	Returns a key/value storage collection.	1
ControllerBase::languageManager	protected	function	Returns the language manager service.	1
ControllerBase::moduleHandler	protected	function	Returns the module handler.	2
ControllerBase::redirect	protected	function	Returns a redirect response object for the specified route. Overrides UrlGeneratorTrait::redirect
ControllerBase::state	protected	function	Returns the state storage service.
LinkGeneratorTrait::$linkGenerator	protected	property	The link generator.	1
LinkGeneratorTrait::getLinkGenerator Deprecated	protected	function	Returns the link generator.
LinkGeneratorTrait::l Deprecated	protected	function	Renders a link to a route given a route name and its parameters.
LinkGeneratorTrait::setLinkGenerator Deprecated	public	function	Sets the link generator service.
LoggerChannelTrait::$loggerFactory	protected	property	The logger channel factory service.
LoggerChannelTrait::getLogger	protected	function	Gets the logger for a specific channel.
LoggerChannelTrait::setLoggerFactory	public	function	Injects the logger channel factory.
MessengerTrait::$messenger	protected	property	The messenger.	29
MessengerTrait::messenger	public	function	Gets the messenger.	29
MessengerTrait::setMessenger	public	function	Sets the messenger.
RedirectDestinationTrait::$redirectDestination	protected	property	The redirect destination service.	1
RedirectDestinationTrait::getDestinationArray	protected	function	Prepares a 'destination' URL query parameter for use with \Drupal\Core\Url.
RedirectDestinationTrait::getRedirectDestination	protected	function	Returns the redirect destination service.
RedirectDestinationTrait::setRedirectDestination	public	function	Sets the redirect destination service.
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.	1
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.
UrlGeneratorTrait::$urlGenerator	protected	property	The url generator.
UrlGeneratorTrait::getUrlGenerator Deprecated	protected	function	Returns the URL generator service.
UrlGeneratorTrait::setUrlGenerator Deprecated	public	function	Sets the URL generator service.
UrlGeneratorTrait::url Deprecated	protected	function	Generates a URL or path for a specific route based on the given parameters.