Django 3 Web Development Cookbook - Fourth Edition

Getting ready

For this recipe to work, you will need to have the contenttypes app installed. It should be in the INSTALLED_APPS list in the settings, by default, as shown in the following code:

# myproject/settings/_base.pyINSTALLED_APPS = [    # contributed    "django.contrib.admin",    "django.contrib.auth",    "django.contrib.contenttypes",    "django.contrib.sessions",    "django.contrib.messages",    "django.contrib.staticfiles",    # third-party    # ...    # local    "myproject.apps.core",    "myproject.apps.categories",    "myproject.apps.ideas",]

Again, make sure that you have already created the myproject.apps.core app for your model mixins.