PostRepository getPostWithComments() method added. PostController#showAction() now uses it.

src/Skobkin/Bundle/PointToolsBundle/Controller/PostController.php

@@ -20,8 +20,7 @@ class PostController extends Controller
         $userApi = $this->container->get('skobkin_point_tools.api_user');
 
         return $this->render('SkobkinPointToolsBundle:Post:show.html.twig', [
-            'post' => $post,
-            'avatar_url' => $userApi->getAvatarUrl($post->getAuthor(), UserApi::AVATAR_SIZE_LARGE),
+            'post' => $this->getDoctrine()->getRepository('SkobkinPointToolsBundle:Blogs\Post')->getPostWithComments($post->getId()),
         ]);
     }
 

src/Skobkin/Bundle/PointToolsBundle/Repository/Blogs/PostRepository.php

@@ -3,8 +3,21 @@
 namespace Skobkin\Bundle\PointToolsBundle\Repository\Blogs;
 
 use Doctrine\ORM\EntityRepository;
+use Doctrine\ORM\QueryBuilder;
 
 class PostRepository extends EntityRepository
 {
-
+    public function getPostWithComments($postId)
+    {
+        /** @var QueryBuilder $qb */
+        $qb = $this->createQueryBuilder('p');
+        return $qb
+            ->select(['p', 'c', 'a'])
+            ->leftJoin('p.comments', 'c')
+            ->leftJoin('c.author', 'a')
+            ->where($qb->expr()->eq('p.id', ':post_id'))
+            ->setParameter('post_id', $postId)
+            ->getQuery()->getOneOrNullResult()
+        ;
+    }
 }