From d891c7089cffec8d9fdd3da82b1bb032fc14a90a Mon Sep 17 00:00:00 2001
From: gzbender <gzbender74@gmail.com>
Date: Wed, 24 Oct 2018 22:44:08 +0500
Subject: [PATCH] =?UTF-8?q?LIL-704=20=D0=9F=D0=BE=D1=87=D0=B8=D0=BD=D0=B8?=
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---
 api/v1/serializers/course.py | 19 +++++--------------
 api/v1/views.py              | 21 +++++++++++++++++----
 requirements.txt             |  1 +
 3 files changed, 23 insertions(+), 18 deletions(-)

diff --git a/api/v1/serializers/course.py b/api/v1/serializers/course.py
index 551830ad..781af25e 100644
--- a/api/v1/serializers/course.py
+++ b/api/v1/serializers/course.py
@@ -1,9 +1,8 @@
+from django.contrib.auth import get_user_model
 from ipware import get_client_ip
-
 from rest_framework import serializers
 from rest_framework.validators import UniqueValidator
-
-from django.contrib.auth import get_user_model
+from drf_dynamic_fields import DynamicFieldsMixin
 
 from apps.course.models import (
     Category, Course,
@@ -13,17 +12,9 @@ from apps.course.models import (
     LiveLessonComment)
 from .content import (
     ImageObjectSerializer, ContentSerializer, ContentCreateSerializer,
-    GallerySerializer, GalleryImageSerializer,
-)
-
-from apps.content.models import (
-    Content, Image, Text, ImageText, Video,
-    Gallery, GalleryImage, ImageObject,
-    ContestWork)
-
-from .user import UserSerializer
+    GallerySerializer, )
 from .mixins import DispatchContentMixin, DispatchGalleryMixin, DispatchMaterialMixin
-
+from .user import UserSerializer
 
 User = get_user_model()
 
@@ -269,7 +260,7 @@ class LessonSerializer(serializers.ModelSerializer):
         )
 
 
-class CourseSerializer(serializers.ModelSerializer):
+class CourseSerializer(DynamicFieldsMixin, serializers.ModelSerializer):
     author = UserSerializer()
     category = CategorySerializer()
     materials = MaterialSerializer(many=True)
diff --git a/api/v1/views.py b/api/v1/views.py
index f792972b..744ab371 100644
--- a/api/v1/views.py
+++ b/api/v1/views.py
@@ -18,7 +18,7 @@ from .serializers.course import (
     MaterialSerializer, MaterialCreateSerializer,
     LessonSerializer, LessonCreateSerializer,
     LikeCreateSerializer, CourseCommentSerializer, LessonCommentSerializer,
-    LiveLessonCommentSerializer)
+    LiveLessonCommentSerializer,)
 from .serializers.content import (
     BanerSerializer,
     ImageSerializer, ImageCreateSerializer,
@@ -36,8 +36,7 @@ from .serializers.school import (
 )
 from .serializers.payment import (
     AuthorBalanceSerializer, AuthorBalanceCreateSerializer,
-    PaymentSerializer, CoursePaymentSerializer,
-    SchoolPaymentSerializer,
+    PaymentSerializer,
     CoursePaymentCreateSerializer, SchoolPaymentCreateSerializer)
 from .serializers.user import (
     AuthorRequestSerializer,
@@ -48,7 +47,7 @@ from .serializers.contest import (
 )
 
 from .permissions import (
-    IsAdmin, IsAdminOrIsSelf,
+    IsAdmin,
     IsAuthorOrAdmin, IsAuthorObjectOrAdmin,
     IsTeacherOrAdmin,
 )
@@ -240,6 +239,20 @@ class CourseViewSet(ExtendedModelViewSet):
     #     'delete': IsAdmin,
     # }
 
+    def list(self, request, *args, **kwargs):
+        queryset = self.filter_queryset(self.get_queryset())
+
+        if request.query_params.get('page'):
+            page = self.paginate_queryset(queryset)
+            if page is not None:
+                serializer = self.get_serializer(page, many=True)
+                return self.get_paginated_response(serializer.data)
+            else:
+                return Response({'results': []})
+
+        serializer = self.get_serializer(queryset, many=True)
+        return Response(serializer.data)
+
     @list_route(methods=['get'])
     def draft(self, request):
         drafts = Course.objects.filter(author=request.user, status=Course.DRAFT)
diff --git a/requirements.txt b/requirements.txt
index 052bb32e..27daa65a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -33,3 +33,4 @@ django-imagekit
 pusher==2.0.1
 short_url
 sendgrid
+drf_dynamic_fields