SubTreeController.php in Taxonomy Manager 8

Namespace

Drupal\taxonomy_manager\Controller

File

src/Controller/SubTreeController.php

<?php

namespace Drupal\taxonomy_manager\Controller;

use Drupal\Core\Controller\ControllerBase;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Symfony\Component\HttpFoundation\JsonResponse;
use Symfony\Component\HttpFoundation\Request;
use Drupal\taxonomy_manager\Element\TaxonomyManagerTree;

/**
 * Exposes a list of terms to any JS library via JSON.
 *
 * @package Drupal\taxonomy_manager\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 = [];
    $parent = $this->request
      ->get('parent');
    $term = $this
      ->entityTypeManager()
      ->getStorage('taxonomy_term')
      ->load($parent);
    if ($term) {
      $taxonomy_vocabulary = $this
        ->entityTypeManager()
        ->getStorage('taxonomy_vocabulary')
        ->load($term
        ->getVocabularyId());
      if ($taxonomy_vocabulary) {
        $terms = TaxonomyManagerTree::loadTerms($taxonomy_vocabulary, $parent);
        $list = TaxonomyManagerTree::getNestedListJsonArray($terms);
      }
    }
    return new JsonResponse($list);
  }

}

Classes

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