Solution

cinema/urls.py

@@ -2,16 +2,18 @@
 from rest_framework.routers import DefaultRouter
 
 from cinema.views import (
-    GenreAPIView,
-    ActorGenericAPIView,
+    GenreList,
+    GenreDetail,
+    ActorList,
+    ActorDetail,
     CinemaHallViewSet,
-    MovieModelViewSet
+    MovieViewSet
 )
 
 app_name = "cinema"
 
 router = DefaultRouter()
-router.register("movies", MovieModelViewSet, basename="movies")
+router.register("movies", MovieViewSet, basename="movies")
 
 cinema_hall_list = CinemaHallViewSet.as_view(
     actions={"get": "list",
@@ -27,11 +29,11 @@
 
 urlpatterns = [
     path("", include(router.urls)),
-    path("genres/", GenreAPIView.as_view(), name="genre-list"),
-    path("genres/<int:pk>/", GenreAPIView.as_view(), name="genre-detail"),
-    path("actors/", ActorGenericAPIView.as_view(), name="actor-list"),
+    path("genres/", GenreList.as_view(), name="genre-list"),
+    path("genres/<int:pk>/", GenreDetail.as_view(), name="genre-detail"),
+    path("actors/", ActorList.as_view(), name="actor-list"),
     path("actors/<int:pk>/",
-         ActorGenericAPIView.as_view(),
+         ActorDetail.as_view(),
          name="actor-detail"),
     path("cinema_halls/",
          cinema_hall_list,

cinema/views.py

@@ -12,7 +12,7 @@
                                 CinemaHallSerializer)
 
 
-class GenreAPIView(APIView):
+class GenreList(APIView):
     def get(self, request):
         genres = Genre.objects.all()
         serializer = GenreSerializer(genres, many=True)
@@ -25,9 +25,16 @@ def post(self, request):
             return Response(serializer.data, status=status.HTTP_201_CREATED)
         return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
 
+
+class GenreDetail(APIView):
     def get_object(self, pk):
         return get_object_or_404(Genre, pk=pk)
 
+    def get(self, request, pk):
+        genre = self.get_object(pk)
+        serializer = GenreSerializer(genre)
+        return Response(serializer.data, status=status.HTTP_200_OK)
+
     def put(self, request, pk):
         genre = self.get_object(pk)
         serializer = GenreSerializer(genre, data=request.data)
@@ -50,47 +57,37 @@ def delete(self, request, pk):
         return Response(status=status.HTTP_204_NO_CONTENT)
 
 
-class ActorGenericAPIView(generics.GenericAPIView):
+class ActorList(mixins.ListModelMixin,
+                mixins.CreateModelMixin,
+                generics.GenericAPIView):
     queryset = Actor.objects.all()
     serializer_class = ActorSerializer
 
-    def get(self, request, pk=None):
-        if pk is None:
-            actors = self.get_queryset()
-            serializer = self.get_serializer(actors, many=True)
-            return Response(serializer.data, status=status.HTTP_200_OK)
-        else:
-            actor = self.get_object()
-            serializer = self.get_serializer(actor)
-            return Response(serializer.data, status=status.HTTP_200_OK)
+    def get(self, request, *args, **kwargs):
+        return self.list(request, *args, **kwargs)
 
-    def post(self, request):
-        serializer = self.get_serializer(data=request.data)
-        if serializer.is_valid():
-            serializer.save()
-            return Response(serializer.data, status=status.HTTP_201_CREATED)
-        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+    def post(self, request, *args, **kwargs):
+        return self.create(request, *args, **kwargs)
 
-    def put(self, request):
-        actor = self.get_object()
-        serializer = self.get_serializer(actor, data=request.data)
-        if serializer.is_valid():
-            serializer.save()
-            return Response(serializer.data, status=status.HTTP_200_OK)
-        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
 
-    def patch(self, request):
-        actor = self.get_object()
-        serializer = self.get_serializer(actor, data=request.data)
-        if serializer.is_valid():
-            serializer.save()
-            return Response(serializer.data, status=status.HTTP_200_OK)
-        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+class ActorDetail(mixins.RetrieveModelMixin,
+                  mixins.UpdateModelMixin,
+                  mixins.DestroyModelMixin,
+                  generics.GenericAPIView):
+    queryset = Actor.objects.all()
+    serializer_class = ActorSerializer
 
-    def delete(self, request):
-        actor = self.get_object()
-        actor.delete()
-        return Response(status=status.HTTP_204_NO_CONTENT)
+    def get(self, request, *args, **kwargs):
+        return self.retrieve(request, *args, **kwargs)
+
+    def put(self, request, *args, **kwargs):
+        return self.update(request, *args, **kwargs)
+
+    def patch(self, request, *args, **kwargs):
+        return self.partial_update(request, *args, **kwargs)
+
+    def delete(self, request, *args, **kwargs):
+        return self.destroy(request, *args, **kwargs)
 
 
 class CinemaHallViewSet(
@@ -105,6 +102,6 @@ class CinemaHallViewSet(
     serializer_class = CinemaHallSerializer
 
 
-class MovieModelViewSet(viewsets.ModelViewSet):
+class MovieViewSet(viewsets.ModelViewSet):
     queryset = Movie.objects.all()
     serializer_class = MovieSerializer