added pagination

roomlist/api/views.py

@@ -2,21 +2,38 @@
 from __future__ import absolute_import, print_function
 # third party imports
 from rest_framework.viewsets import ReadOnlyModelViewSet
+from rest_framework.pagination import PageNumberPagination
 # imports from your apps
 from housing.models import Building, Floor, Room
-from .serializers import BuildingSerializer, FloorSerializer, RoomSerializer
+from accounts.models import Major
+from .serializers import (BuildingSerializer, FloorSerializer, RoomSerializer,
+                          MajorSerializer)
+
+
+class HousingPagination(PageNumberPagination):
+    page_size = 25
+    page_size_query_param = 'page_size'
+    max_page_size = 1000
 
 
 class BuildingAPI(ReadOnlyModelViewSet):
     queryset = Building.objects.all()
     serializer_class = BuildingSerializer
+    pagination_class = HousingPagination
 
 
 class FloorAPI(ReadOnlyModelViewSet):
     queryset = Floor.objects.all()
     serializer_class = FloorSerializer
+    pagination_class = HousingPagination
 
 
 class RoomAPI(ReadOnlyModelViewSet):
     queryset = Room.objects.all()
     serializer_class = RoomSerializer
+    pagination_class = HousingPagination
+
+
+class MajorAPI(ReadOnlyModelViewSet):
+    queryset = Major.objects.all()
+    serializer_class = MajorSerializer