Inconsistency of clean method
Matthew Pava
I have been working with Django for several years and just discovered this gem in the documentation (emphasis mine):
“If your form inherits another that doesn’t return a cleaned_data dictionary in its clean() method (doing so is optional), then don’t assign cleaned_data to the result of the super() call and use self.cleaned_data instead:”
I had always assumed that the clean method was required return the cleaned_data because I thought I had read that elsewhere. Upon further investigation, I discovered that this requirement was changed in Django 1.7. Any idea why? (I obviously missed reading about that change.) It does seem somewhat inconsistent since the clean_field methods all require the cleaned_data of the field to be returned.
I’ve been working on a formset and was used to the behavior of the super clean method always returning the cleaned_data dictionary. …but, it doesn’t, and I’ve spent a great deal of time troubleshooting this issue believing otherwise. I was wondering if we could/should ask the Django developers to return the cleaned_data in the formset classes since they do return cleaned_data in the form classes.
