What are advanced features of Django formsets?

What are advanced features of Django formsets?

Django formsets allow you to manage multiple forms on a single page. Advanced features include custom validation, dynamic form addition, and handling complex data structures.

Can you explain how to implement dynamic form addition?

Sure! You can use JavaScript to add new forms dynamically. You'll need to clone an existing form and update its index to ensure it submits correctly.

What about custom validation for formsets?

Custom validation can be implemented by overriding the is_valid() method in your formset class. This allows you to add logic that checks the data across multiple forms.

Are there any best practices for using formsets?

Yes, keep your formsets manageable by limiting the number of forms displayed at once, and consider using AJAX for better user experience.