Django 3 Web Development Cookbook - Fourth Edition

How to do it...

Let's enhance the filter form for ideas that we created in the Filtering object lists recipe in Chapter 3, Forms and Views, by adding a field for filtering by category:

1. In the forms.py file of the ideas app, create a form with a category field as follows:

# myproject/apps/ideas/forms.pyfrom django import formsfrom django.utils.safestring import mark_safefrom django.utils.translation import ugettext_lazy as _from django.contrib.auth import get_user_modelfrom crispy_forms import bootstrap, helper, layoutfrom mptt.forms import TreeNodeChoiceFieldfrom myproject.apps.categories.models import Categoryfrom .models import Idea, RATING_CHOICESUser = get_user_model()class IdeaFilterForm(forms.Form): author = forms.ModelChoiceField( ...