Trying to build a custom Django file upload form field
I am trying to get a file upload form field working in Django and the part I am having problems with is dynamically changing the form field required attribute. I have tried using "self.fields['field_name'].required=True' in the init method of the form but that isn't working for me.
I have looked at Django dynamically changing the required property on forms but I don't want to build several custom models and a custom render function for one form as surely it must be easier than that.
The reason I am trying to do this is because when a django form validates and has errors it doesn't pass any uploaded files back to the browser form for reediting. It will pass text areas and text inputs that didn't validate back to the form for reediting but not file uploads. I thought if I made the file upload fields mandatory for the first time the record is created mandatory and for subsequent times make them optional. That is basically what I am trying to do.