Django Formset without instance

Question

In this Django Doc explain how to create a formset that allows you to edit books belonging to a particular author.

What I want to do is: Create a formset that allows you to ADD new book belonging to a NEW author... Add the Book and their Authors in the same formset.

Can you gime a light? thanks.

Answer 1

When you're instantiating the form and formset for the initial display, you don't need to provide an instance - so you will just get blank forms.

When you pass in the data on POST, you can do the form first, save it, and get an instance. Then you can pass that instance into the formset, so that it correctly saves the related objects.