Hello, I was having a similar, but slightly different problem. My hangup was that the form_change form wasn't being populated. It seems that the optional 'form' parameter for form_for_(model/instance) should probably be a subclass of newforms.BaseForm, and not of newforms.ModelForm.
see http://code.djangoproject.com/ticket/3632 So your test-case might become: class DocumentForm(forms.BaseForm): pass Still in the process of working on this myself, but I hope it helps, preston On Feb 12, 6:14 am, lowshoe <[EMAIL PROTECTED]> wrote: > hi, > > i'm trying to use acustomform for one of my models inside the admin > interface . i need this to docustomvalidation. > > so far, i have created a DocumentForm that inherits from > newforms.ModelFormand define my Model as model attribute inside the > Meta class (as seen athttp://www.djangoproject.com/documentation/modelforms/) > > --- > from django import newforms as forms > > class DocumentForm(forms.ModelForm): > class Meta: > model = models.Document > --- > > then i overwrote form_add and form_change in my Options class: > > --- > from django.contrib.admin import ModelAdmin > > class DocumentOptions(ModelAdmin): > > def form_add(self, request): > if self.declared_fieldsets: > fields = flatten_fieldsets(self.declared_fieldsets) > else: > fields = None > return forms.form_for_model(self.model, form=DocumentForm, > fields=fields, > > formfield_callback=self.formfield_for_dbfield) > > def form_change(self, request, obj): > if self.declared_fieldsets: > fields = flatten_fieldsets(self.declared_fieldsets) > else: > fields = None > > return forms.form_for_instance(obj, form=DocumentForm, > fields=fields, > > formfield_callback=self.formfield_for_dbfield) > > admin.site.register(models.Document, DocumentOptions) > --- > > but now i get an error when trying tro add or edit a document: > > Exception Type: TypeError > Exception Value: 'NoneType' object is not callable > Exception Location: /usr/lib/python2.5/site-packages/django/newforms/ > models.py in __init__, line 270 > > Traceback: > [..] > File "/usr/lib/python2.5/site-packages/django/newforms/models.py" in > __init__ > 270. self.instance = opts.model() > > i don't understand why calling opts.model() fails. this should be > exactly my Document model which i defined inside the Meta class. Did i > miss something or whats wrong there? > > regards, lowshoe --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/django-users?hl=en -~----------~----~----~----~------~----~------~--~---
