To make our application more readable and not clutter the endpoints with a lot of business logic, we are going to create managers for our model classes. If you followed the previous chapter, you should be very familiar with this. In a nutshell, managers are an interface that provide query operations to Django models.
By default, Django adds a manager to every model; it is stored on a property named objects. The default manager that Django adds to the models is sometimes sufficient and there's no need to create a custom manager, but it is a good practice to keep all database-related code within the model. This will make our code more consistent, readable, and easier to test and maintain.
In our case, the only ...
