index.py 文件源码

def _get_id(cls, obj):
        if cls._is_ndb():
            if not isinstance(obj, ndb.Key):
                # Turn objects into keys
                key = obj.key
            else:
                key = obj
            obj_id = key.string_id()
        else:
            if not isinstance(obj, db.Key):
                # Turn objects into keys
                key = obj.key()
            else:
                key = obj
            obj_id = key.name()
        return obj_id