gistfile1.php

<?php


public function commentNewAction(Request $request, Post $post)
    {
        $form = $this->createCommentForm();
        $form->handleRequest($request);
        if ($form->isSubmitted() && $form->isValid()) {
            /** @var Comment $comment */
            $comment = $form->getData();
            $comment->setAuthorEmail($this->getUser()->getEmail());
            $comment->setPost($post);
            $comment->setPublishedAt(new \DateTime());
            
            BackgroundTask::runTask(function($resolve, $reject) use($comment) {
              try {
                $em = $this->getDoctrine()->getManager();
                $em->persist($comment);
                $em->flush();
              } catch (\Exception $e) {
                $reject($e->getMessage());
              }
              
              $resolve();
            });
            
            return $this->redirectToRoute('blog_post', array('slug' => $post->getSlug()));
        }
        return $this->render('blog/comment_form_error.html.twig', array(
            'post' => $post,
            'form' => $form->createView(),
        ));
    }