Django Display a custom error message for admin validation error

0 votes

I'm using Django 1.2.4. I have a model that has a field that needs to be validated. When validation fails, I'd like to display a custom error message to the user. Model editing is done in the admin interface.

This is what I'm doing currently:

def clean_fields(self, exclude=None):
    # do validation
    if problem:
        raise ValidationError({'field_name': "error message"})

Unfortunately, all this does is print out a separate validation message on the admin page for each character in the value of field_name.

What is the proper way to signal the error message I want?

Jun 12, 2020 in Python by kartik
• 37,530 points

1 answer to this question.

0 votes

Hello @kartik,

Without looking, it sounds like the admin is looking for an iterable as the value for field_name. Try:

raise ValidationError({'field_name': ["error message",]})

Hope it helps!!

answered Jun 12, 2020 by Niroj
• 82,820 points

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