class SubTreeController in Term Reference Fancytree 8

Exposes a list of terms to any JS library via JSON.

@package Drupal\term_reference_fancytree\Controller

Hierarchy

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

File

src/Controller/SubTreeController.php, line 16

Namespace

Drupal\term_reference_fancytree\Controller

class SubTreeController extends ControllerBase {

  /**
   * The current request.
   *
   * @var \Symfony\Component\HttpFoundation\Request
   */
  protected $request;

  /**
   * Constructs a SubTreeController object.
   *
   * @param \Symfony\Component\HttpFoundation\Request $request
   *   The current request.
   */
  public function __construct(Request $request) {
    $this->request = $request;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    return new static($container
      ->get('request_stack')
      ->getCurrentRequest());
  }

  /**
   * JSON callback for subtree.
   *
   * @return \Symfony\Component\HttpFoundation\JsonResponse
   *   JSON object with list of terms.
   */
  public function json() {
    $list = [];

    // The parent being expanded.
    $parent = $this->request
      ->get('parent');

    // Flag to indicate if the parent is a vocabulary instead of a term.
    $vocab = $this->request
      ->get('vocab');

    // If the parent is a vocabulary, we want to load the first level of terms
    // of that vocabulary.
    if ($vocab) {
      $taxonomy_vocabulary = \Drupal::entityTypeManager()
        ->getStorage('taxonomy_vocabulary')
        ->load($parent);
      $terms = TermReferenceFancytree::loadTerms($taxonomy_vocabulary, 0, -1);
      $list = TermReferenceFancytree::getNestedListJsonArray($terms, []);
    }
    else {
      $term = $this
        ->entityTypeManager()
        ->getStorage('taxonomy_term')
        ->load($parent);
      if ($term) {
        $taxonomy_vocabulary = $this
          ->entityTypeManager()
          ->getStorage('taxonomy_vocabulary')
          ->load($term
          ->getVocabularyId());
        if ($taxonomy_vocabulary) {
          $terms = TermReferenceFancytree::loadTerms($taxonomy_vocabulary, $parent);
          $list = TermReferenceFancytree::getNestedListJsonArray($terms, []);
        }
      }
    }
    return new JsonResponse($list);
  }

}

Members

Name	Modifiers	Type	Description	Overrides
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::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::$stringTranslation	protected	property	The string translation service.	1
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.
SubTreeController::$request	protected	property	The current request.
SubTreeController::create	public static	function	Instantiates a new instance of this class. Overrides ControllerBase::create
SubTreeController::json	public	function	JSON callback for subtree.
SubTreeController::__construct	public	function	Constructs a SubTreeController object.
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.