Limit Django's inlineformset_factory to only create new objects

Question

I am using django\'s inline formset factory. To use the example in the docs,

author = Author.objects.get(pk=1)
BookFormSet = inlineformset_factory(Author, Book)         


        

Answer 1

Actually the answer is given in the documentation. Just don't give any instance to the FormSet. From the doc:

>>> from django.forms.models import inlineformset_factory
>>> BookFormSet = inlineformset_factory(Author, Book)
>>> author = Author.objects.get(name=u'Mike Royko')
>>> formset = BookFormSet() # This will create an empty form with your model fields

You can then create view as follows:

if request.method == "POST":
    formset = BookFormSet(request.POST, request.FILES)
    if formset.is_valid():
        formset.save()
else:
    formset = BookFormSet()
return render_to_response("add_book.html", {
    "formset": formset,

Hope it helps.