On Wed, Dec 14, 2011 at 9:22 PM, Martin Tiršel <dja...@blackpage.eu> wrote: > Hi, > > I have a formset where I need to raise ValidationError if all forms in this > formset are empty and submitted but I can not find any useful informations. > Any suggestions? >
To control validation on a formset, add a BaseFormset class and define a clean() method on it: https://docs.djangoproject.com/en/1.3/topics/forms/formsets/#custom-formset-validation To determine whether all the forms are empty, you have to consider the initial forms (from existing data) and the extra forms (for new data). If any of the initial forms are invalid or not marked for deletion, then there is a non empty form. If any of the extra forms have changed, there is a non empty form. Therefore, something like this should suffice: def clean(self): for form in self.initial_forms: if not form.is_valid() \ or not (self.can_delete and form.cleaned_data.get('DELETE')): return for form in self.extra_forms: if form.has_changed(): return raise forms.ValidationError("No initial or changed extra forms") Cheers Tom -- You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com. To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/django-users?hl=en.
