models.py 文件源码

def get(self, name):
        setting_name = "__transient_%s" % (name)

        try:
            the_setting = Setting.get(Setting.name == setting_name)
            t = Transient.from_setting(the_setting)
        except Setting.DoesNotExist as e:
            return False

        if t.is_expired():
            the_setting.delete_instance()
            return False
        else:
            return t.value