/**
  * Transforms Content entity into ES document.
  *
  * @param Content         $content
  * @param ContentDocument $document
  */
 public function transformContentToDocument(Content $content, ContentDocument $document)
 {
     $document->setId($content->getId());
     $document->setTitle($content->getTitle());
     $document->setContent($content->getContent());
     $document->setFolder($content->getFolder());
     $document->setSlug($content->getLoadId());
     $document->setSnippet($content->isSnippet());
     $document->setType($content->getType());
     $document->setActive($content->isActive());
     $document->setPosition($content->getPosition());
     $this->extractUrls($content, $document);
 }