model.py 文件源码

def for_external_key(cls, bot, key):
        """Find or create the Post  with the given external key.
        """
        from bot import Bot
        if isinstance(bot, Bot):
            bot = bot.model
        _db = Session.object_session(bot)
        return get_one_or_create(_db, Post, bot=bot, external_key=key)