Django Forms - How to Use Prefix Parameter

Question

Say I have a form like:

class GeneralForm(forms.Form):
    field1 = forms.IntegerField(required=False)
    field2 = forms. IntegerField(required=False)
         


        

Answer 1

Even better, I think formsets is exactly what you're looking for.

class GeneralForm(forms.Form):
    field1 = forms.IntegerField(required=False)
    field2 = forms. IntegerField(required=False)

from django.forms.formsets import formset_factory

# GeneralSet is a formset with 2 occurrences of GeneralForm 
# ( as a formset allows the user to add new items, this enforces
#   2 fixed items, no less, no more )
GeneralSet = formset_factory(GeneralForm, extra=2, max_num=2)

# example view

def someview(request):
    general_set = GeneralSet(request.POST)
    if general_set.is_valid():
        for form in general_set.forms:
            # do something with data
    return render_to_response("template.html", {'form': general_set}, RequestContext(request))

You can even have a formset automatically generated from a model with modelformset_factory , which are used by the automated django admin. FormSet handle even more stuff than simple forms, like adding, removing and sorting items.