Show all ous sponsor can access in register form

gregui/api/views/ou.py

@@ -17,4 +17,4 @@ class OusViewSet(mixins.ListModelMixin, GenericViewSet):
 
     def get_queryset(self):
         sponsor = GregUserProfile.objects.get(user=self.request.user).sponsor
-        return sponsor.units.all()
+        return sponsor.get_allowed_units()