Django inline formset with child of a child

I have three models:

1. Variable, which has Group as a foreign key
2. Group, which has Set as a foreign key
3. Set

I want to create a form that lets user create a new Set based on existing Set. Only things that user is able to modify are the Set name and Variable values.

This has given me an idea of using inlineformset_factory to access models' children. Sadly, all the examples I found go only one layer down.

Is there any way to access the Variables of a Set through inlineformset_factory?

If not - what is a good wa开发者_运维百科y to accomplish my goal?

Thank you.

From my experience, it is not worth hacking the existing inlineformset_factory to achieve much beyond what it is meant to do.

You are better off writing a custom view with the qs you want to use and create unique ids for each form element, to identify its parent.