how to show Filefield validation error django instead of raising exception?

Question

I'm trying to add validation to a filefiled, I used this snippet and it works, but the problem is that it raises an exception when the file extension does not match, but I just want it to show form validation errors, not raising errors.
How can I do that?

How can you show the error if you never raise it in the first place? — Håken Lid
– Håken Lid, Commented Jul 3, 2017 at 9:06
yes, I'm asking about how to add the error to the form's errors dict?, how can I access the form? — M. Dhaouadi
– M. Dhaouadi, Commented Jul 3, 2017 at 13:07
You don't need to do that yourself. Any ValidationError raised when you call form.is_valid() will be caught and added to the error dict. That's how it's supposed to work. docs.djangoproject.com/en/1.11/ref/forms/api/… — Håken Lid
– Håken Lid, Commented Jul 3, 2017 at 13:17

Shai · Accepted Answer · 2017-07-03 09:00:45Z

0

Simply replace the raise forms.ValidationError(_('Filetype not supported.')) in line 38 to the action you want to occur when the Filetype is not supported.

Python raise raises an exception, replacing it with a different command will stop python from "raising" that specific exception.

answered Jul 3, 2017 at 9:00

Shai

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M. Dhaouadi Over a year ago

yes, I'm asking about how to add the error to the form's errors dict?, how can I access the form?

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