从编辑视图自定义（覆盖）Flask-Admin的提交方法 [英] Customize (override) Flask-Admin's Submit method from edit view

问题描述

前提条件：

我是Python新手，特别是Flask-Admin。我创建了一个简单的测试服务，它有MondoDB，使数据保持一对一的关系。

employeeName - >工资

模型看起来像这样：
$ b $ pre $ class $ Employee $（db.Document）
fullName = db.StringField（max_length = 160 ，unique = True）
salary = db.IntField（）

我使用Flask-管理员用数据观察表格并对其进行编辑。
当我想更改工资字段时，只需按下编辑按钮，并在Flask-Admin的默认编辑视图中更改整数值。我按'提交'，并在数据库中的新值成功应用。

问题：

但我需要以某种方式覆盖提交方法，即保留功能，并添加一些自定义代码。我们假设我想在实际的db提交之后在日志文件中添加注释：

lockquote

logging.warning（' s：被更改为/％s'，fullName，薪水）

有关如何实现这一点的任何建议将不胜感激。也许你可以指引我走，因为Flask-Admin文档到目前为止还没有给我足够的帮助。

解决方案

<你可以重载 on_model_change 方法来添加你的自定义逻辑。检查 http：//flask-admin.readthedocs。 org / en / latest / api / mod_model /＃flask.ext.admin.model.BaseModelView.on_model_change

Preconditions:
I'm new to Python and to Flask-Admin in particular. I created a simple test service, which has MondoDB, keeping the data with relationship of 'one-to-one' kind.

employeeName -> salary

The model looks like that:

class Employee(db.Document):
    fullName = db.StringField(max_length=160, unique=True)
    salary = db.IntField()

And I use Flask-Admin to observe the table with the data and to edit it. When I want to change the 'salary' field, I just press the 'edit' button and in Flask-Admin's default edit view I change the integer value. I press 'Submit' and a new value in the database is successfully applied.

Question:
But I need to override the Submit method in the way, that leaves as it is the functionality and adds some custom code. Like let's assume I want to add a comment in the log file after an actual db submit:

logging.warning('The salary of %s: was changed to /%s', fullName, salary)

Any suggestion on how to achieve that would be much appreciated. Perhaps you could direct me in the way to go, since the Flask-Admin documentation doesn't give me enough help so far.

解决方案

You can override on_model_change method to add your custom logic. Check http://flask-admin.readthedocs.org/en/latest/api/mod_model/#flask.ext.admin.model.BaseModelView.on_model_change

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