From b02aa5c273d8cbe44f953e02e5e906388b666270 Mon Sep 17 00:00:00 2001
From: Ivlev Denis <di-erz@yandex.ru>
Date: Wed, 7 Feb 2018 22:21:06 +0300
Subject: [PATCH] More fastest query Course list

---
 apps/course/views.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/apps/course/views.py b/apps/course/views.py
index c3f6f05b..cd5fd64a 100644
--- a/apps/course/views.py
+++ b/apps/course/views.py
@@ -177,7 +177,11 @@ class CoursesView(ListView):
             return super().get(request, args, kwargs)
 
     def get_queryset(self):
-        queryset = super().get_queryset()
+        queryset = super().get_queryset().select_related(
+            'author', 'category'
+        ).prefetch_related(
+            'likes', 'materials', 'content',
+        )
         filtered = CourseFilter(self.request.GET, queryset=queryset)
         return filtered.qs