What are Django formsets and how do I use them?

What are Django formsets and how do I use them?

Django formsets are a way to manage multiple forms on a single page. They allow you to create, edit, and delete multiple instances of a form at once.

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

Sure! First, you need to import formset_factory from django.forms. Then, define your form and create a formset like this:

from django import forms
from django.forms import formset_factory

class MyForm(forms.Form):
    name = forms.CharField(max_length=100)

MyFormSet = formset_factory(MyForm)

How do I handle formset validation?

You can validate formsets by calling is_valid() on the formset instance. If it's valid, you can save the data. Here's an example:

formset = MyFormSet(request.POST)
if formset.is_valid():
    # process the data

What if I want to add or remove forms dynamically?

You can use JavaScript to add or remove forms dynamically on the client side. Just ensure that the formset management form is included to keep track of the forms.