What are some examples of using inline formsets in Django?

What are some examples of using inline formsets in Django?

Inline formsets in Django allow you to manage related models on the same page. For example, if you have a Book model and a related Author model, you can use an inline formset to add or edit authors directly within the book form.

Can you show me a code example of how to implement that?

Sure! Here's a simple example:

from django import forms
from django.forms import inlineformset_factory
from .models import Book, Author

class AuthorForm(forms.ModelForm):
    class Meta:
        model = Author
        fields = ['name']

AuthorFormSet = inlineformset_factory(Book, Author, form=AuthorForm, extra=1)

This creates an inline formset for the Author model related to the Book model.

How do I display this formset in a template?

You can render the formset in your template like this:

<form method="post">
    {% csrf_token %}
    {{ formset.management_form }}
    {% for form in formset %}
        {{ form.as_p }}
    {% endfor %}
    <button type="submit">Save</button>
</form>

What if I want to add more authors dynamically?

You can use JavaScript to add more forms dynamically. You would need to clone an existing form and append it to the formset in your template.