What are Django formsets and how do I use them?

What are Django formsets and how do I use them?

Django formsets are a layer of abstraction to manage multiple forms on a single page. They help in handling multiple instances of a form, making it easier to create, update, or delete multiple objects.

Can you give me an example of how to create a formset?

Sure! First, you need to import the necessary classes from Django forms. Then, create a form class and a formset class using formset_factory. Finally, render the formset in your template.

What if I want to add validation to my formset?

You can override the is_valid() method in your formset class to add custom validation logic. This allows you to check the validity of all forms in the formset before processing them.

How do I handle formset data in my view?

In your view, you can check if the request method is POST, then bind the formset to the request data. If valid, save the forms; otherwise, render the formset with errors.