update get unseen notifications count

seahub/api2/endpoints/notifications.py

@@ -0,0 +1,26 @@
+# Copyright (c) 2012-2016 Seafile Ltd.
+from rest_framework.authentication import SessionAuthentication
+from rest_framework.permissions import IsAuthenticated
+from rest_framework.response import Response
+from rest_framework.views import APIView
+
+from seahub.api2.authentication import TokenAuthentication
+from seahub.api2.throttling import UserRateThrottle
+from seahub.notifications.models import UserNotification
+
+json_content_type = 'application/json; charset=utf-8'
+
+class NotificationsView(APIView):
+
+    authentication_classes = (TokenAuthentication, SessionAuthentication)
+    permission_classes = (IsAuthenticated,)
+    throttle_classes = (UserRateThrottle,)
+
+    def get(self, request):
+
+        username = request.user.username
+        unseen_count = UserNotification.objects.count_unseen_user_notifications(username)
+        result = {}
+        result['unseen_count'] = unseen_count
+
+        return Response(result)