def obj_get_list(self, request=None, **kwargs):
user = kwargs.pop('user', None)
a_map = kwargs.pop('map', None)
if user:
object_list = actor_stream(user)
elif a_map:
object_list = ActivityManager().related_to_map(a_map)
else:
object_list = user_stream(request.user)
if request.GET.has_key('since'):
since = dateutil.parser.parse(request.GET['since'])
base_object_list = object_list.filter(timestamp__gte=since)
else:
base_object_list = object_list
return self.apply_authorization_limits(request, base_object_list)
