how to display error message in save method of django

Question

I want to display error message in case the instance I am creating is more than the maximum limit I have specified in a certain model. This is a inner condition.

I know that we can hide the + and override the has_add_permission method. This is used for user authentication in my application.

However, I wish to allow the instance to be created for a certain login who is a superuser based on the inner condition.

ValidationError gives me error u' max...' ValidationError at the url...

Can anyone guide?

Short answer: you can't. It's too late for validation from the save() method. — Chris Pratt
– Chris Pratt, Commented Feb 6, 2012 at 16:13

Daniel Roseman · Accepted Answer · 2012-02-06 09:27:45Z

1

I don't know what an "inner condition" is.

However, you don't do this in the save method. You do it in a validator. For instance, you could define a clean method on your model to handle this, or use a custom form with the validation in.

answered Feb 6, 2012 at 9:27

Daniel Roseman

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