Add api filter by tag name

JoinTheCityREST/JoinTheCityREST/urls.py

@@ -25,6 +25,8 @@ router.register(r'user_friendship', user_views.UserFriendshipViewSet)
 router.register(r'user_event_request', user_views.UserEventRequestViewSet)
 router.register(r'user_event', user_views.UserEventViewSet)
 router.register(r'user_api', user_views.UserAPIViewSet)
+router.register(r'tag_api', tag_views.TagApiViewSet)
+
 
 
 urlpatterns = patterns('',

JoinTheCityREST/app/Tag/views.py

 from rest_framework import viewsets, permissions
+from app.API.models import API
+from app.API.serializers import APISerializer
 from app.Tag.models import Tag
 from app.Tag.serializers import TagSerializer
-
+from django.shortcuts import get_object_or_404
+import rest_framework
+from rest_framework.response import Response
 
 class TagViewSet(viewsets.ModelViewSet):
     """
@@ -10,3 +14,22 @@ class TagViewSet(viewsets.ModelViewSet):
     queryset = Tag.objects.all()
     serializer_class = TagSerializer
     permission_classes = (permissions.IsAuthenticatedOrReadOnly,)
+
+
+class TagApiViewSet(viewsets.ModelViewSet):
+    """
+    API for articles
+    """
+    queryset = Tag.objects.all()
+    serializer_class = TagSerializer
+    permission_classes = (permissions.IsAuthenticatedOrReadOnly,)
+
+    def list(self, request, *args, **kwargs):
+        return Response(status=rest_framework.status.HTTP_400_BAD_REQUEST, data={"Request name of tag! Provide it by '../tag_name/"})
+
+    def retrieve(self, request, pk):
+        tag = get_object_or_404(self.queryset, name__iexact=pk)
+        queryset = API.objects.filter(tag=tag)
+        page = self.paginate_queryset(queryset)
+        serializer = APISerializer(page, many=True, context={'request': request})
+        return self.get_paginated_response(serializer.data)
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