/**
  * Finds related posts
  */
 public function showRelatedAction()
 {
     $this->view->setRenderLevel(View::LEVEL_ACTION_VIEW);
     $post = Posts::findFirstById($this->request->getPost('id'));
     if ($post) {
         $indexer = new Indexer();
         $posts = $indexer->search(['title' => $post->title, 'category' => $post->categories_id], 5, true);
         if (count($posts) == 0) {
             $posts = $indexer->search(['title' => $post->title], 5, true);
         }
         $this->view->setVar('posts', $posts);
     } else {
         $this->view->setVar('posts', []);
     }
 }