Use Post::addComment to associate comment with post

Author: voronkovich

src/AppBundle/Controller/BlogController.php

@@ -94,7 +94,8 @@ public function commentNewAction(Request $request, Post $post)
     {
         $comment = new Comment();
         $comment->setAuthor($this->getUser());
-        $comment->setPost($post);
+
+        $post->addComment($comment);
 
         $form = $this->createForm(CommentType::class, $comment);
 

src/AppBundle/DataFixtures/ORM/PostFixtures.php

@@ -66,10 +66,10 @@ public function load(ObjectManager $manager)
                 $comment->setAuthor($this->getReference('john-user'));
                 $comment->setPublishedAt(new \DateTime('now + '.($i + $j).'seconds'));
                 $comment->setContent($this->getRandomCommentContent());
-                $comment->setPost($post);
 
-                $manager->persist($comment);
                 $post->addComment($comment);
+
+                $manager->persist($comment);
             }
 
             $manager->persist($post);