def reset_server_karma(self, guildId):
        with DB.atomic() as transaction:
            try:
                Karma.update(karma = 0).where(Karma.guild == guildId) \
                     .execute()
            except Exception as e:
                transaction.rollback()
                raise e

        return True
    def restart_avaiable_karma(self):
        with DB.atomic() as transaction:
            try:
                Karma.update(avaiable_karma = DEFAULT_AVAIABLE_KARMA) \
                     .execute()
            except Exception as e:
                transaction.rollback()
                raise e

        return True