Use OccupationSerializer for the Contacts API

webapp/views.py

@@ -108,15 +108,15 @@ class FeedViewSet(viewsets.ModelViewSet):
 
 
 class ContactsViewSet(viewsets.ReadOnlyModelViewSet):
-    queryset = Official.objects.all()
-    serializer_class = ContactsSerializer
+    queryset = Occupation.objects.all()
+    serializer_class = OccupationSerializer
     permission_classes = [IsAuthenticatedOrReadOnly]
 
     def get_queryset(self):
         year = self.request.query_params.get('year')
         if not year:
-            return Official.official_by_year(timezone.now().year)
-        return Official.official_by_year(int(year))
+            return Occupation.by_year(timezone.now().year)
+        return Occupation.by_year(int(year))
 
 
 class TagsViewSet(viewsets.ReadOnlyModelViewSet):