Django: Web Development with Python

Using model mixins

In object-oriented languages, such as Python, a mixin class can be viewed as an interface with implemented features. When a model extends a mixin, it implements the interface and includes all its fields, properties, and methods. Mixins in Django models can be used when you want to reuse the generic functionalities in different models multiple times.

Getting ready

First, you will need to create reusable mixins. Some typical examples of mixins are given later in this chapter. A good place to keep your model mixins is in the utils module.

Tip

If you create a reusable app that you will share with others, keep the model mixins in the reusable app, for example, in the base.py file.

How to do it…

Open the models.py file of any Django app, ...