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
Customize (override) Flask-Admin's Submit method from edit view
-
28-09-2022 - |
Question
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.
La solution
Autres conseils
I ended up overriding a save
method in my Document-derived class.
So now my Employee class contains this kind of code:
def save(self, *args, **kwargs):
print 'whatever I want to do myself is here'
return super(Employee, self).save(*args, **kwargs)
Today I found that this solution is actually nothing new and is described on StackOverflow.
But for my specific case I think Joes' answer is better. I like it more, because if I override on_model_change
I invoke my custom code only if I edit database through Admin webpage; and each programmatic operation over database (like save
, update
) will work using native code - which is exactly what I want. If I override save
method, I will be handling every save operation myself, whether It was initiated by Admin area or programmatically by the server engine.
Solved, thank you!