django-form-utils / TODO.rst

django-form-utils TODO

Behavior on bound-redisplay is a bit funky, because of hardcoded special-casing of FileField in Django's FileField's are special-cased in BaseForm._clean_fields to receive initial (in addition to submitted) data in their clean() method, and also in BoundField.as_widget() to have initial data rendered as the value if no new data was submitted. Since we inherit from MultiValueField rather than FileField, we don't get this special-casing, and so our FileField always renders empty on bound redisplay when a regular FileField would render the initial data.

Ideally Django would be fixed to remove this special-casing of FileField, either making it polymorphic behavior on fields/widgets or based on a Field class attribute flag, or some such. Then we could pretend to be a FileField and be able to emulate that behavior.