[Update] 修改user group relations api

apps/users/api/relation.py

@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+#
+
+from rest_framework_bulk import BulkModelViewSet
+from django.db.models import F
+
+from common.permissions import IsOrgAdmin
+from .. import serializers
+from ..models import User
+
+__all__ = ['UserUserGroupRelationViewSet']
+
+
+class UserUserGroupRelationViewSet(BulkModelViewSet):
+    filter_fields = ('user', 'usergroup')
+    search_fields = filter_fields
+    serializer_class = serializers.UserUserGroupRelationSerializer
+    permission_classes = (IsOrgAdmin,)
+
+    def get_queryset(self):
+        queryset = User.groups.through.objects.all()\
+            .annotate(user_name=F('user__name'))\
+            .annotate(usergroup_name=F('usergroup__name'))
+        return queryset
+
+    def allow_bulk_destroy(self, qs, filtered):
+        if filtered.count() != 1:
+            return False
+        else:
+            return True