python - flask appbuilder 如何将数据传递给操作 - 已解决

Question

我有一个 Flask-AppBuilder 网页，我想为我们的员工创建一个新页面，用于向电报发送消息

模型：

class Push(Model):
__tablename__ = 'push'
id = Column(Integer, primary_key=True)
content = Column(String(255), nullable=False)

def __repr__(self):
  return self.name

看法 ：

   def testaction(self,Push):
        result = db.session.query(Push).all()
        return str(result)
        bot_token = 'TOKEN'
        bot_chatID = 'ID'
        send_text = 'https://api.telegram.org/bot' + bot_token + '/sendMessage?chat_id=' + bot_chatID + '&parse_mode=Markdown&text=' + bot_message
        response = requests.get(send_text)
        return response.json()
    bot_message = testaction(result)
    print(bot_message)

但有一个错误：

sqlalchemy.exc.InvalidRequestError
sqlalchemy.exc.InvalidRequestError: SQL expression, column, or mapped entity expected - got '[hi]'

AND 不将消息发送到电报