public function ContentHubEntityEmbedHandler::getReferencedEntities in Acquia Content Hub 8

Parse entities from html text.

Return value

array Array with entities.

File

src/ContentHubEntityEmbedHandler.php, line 63

Class

ContentHubEntityEmbedHandler

Content Hub Entity Embed Handler Class.

Namespace

Drupal\acquia_contenthub

Code

public function getReferencedEntities() {

  // Check if field not set properly.
  if ($this->field == NULL) {
    return [];
  }
  $text = $this->field
    ->getString();
  $result = [];
  if (strpos($text, 'data-entity-type') !== FALSE && (strpos($text, 'data-entity-uuid') !== FALSE || strpos($text, 'data-entity-id') !== FALSE)) {
    $dom = Html::load($text);
    $xpath = new \DOMXPath($dom);
    foreach ($xpath
      ->query('//drupal-entity[@data-entity-type and (@data-entity-uuid or @data-entity-id)]') as $node) {

      /** @var \DOMElement $node */
      $entity_type = $node
        ->getAttribute('data-entity-type');
      $entity = NULL;
      try {

        // Load the entity either by UUID (preferred) or ID.
        $id = NULL;
        $entity = NULL;
        if ($id = $node
          ->getAttribute('data-entity-uuid')) {
          $entity = \Drupal::entityTypeManager()
            ->getStorage($entity_type)
            ->loadByProperties([
            'uuid' => $id,
          ]);
          $entity = current($entity);
        }
        else {
          $id = $node
            ->getAttribute('data-entity-id');
          $entity = \Drupal::entityTypeManager()
            ->getStorage($entity_type)
            ->load($id);
        }
        if ($entity) {
          $result[$entity
            ->uuid()] = $entity;
        }
      } catch (\Exception $e) {
        watchdog_exception('content_hub', $e);
      }
    }
  }
  return $result;
}