As we previously mentioned, objects is the default manager of every model that retrieves all objects in the database. However, we can also define custom managers for our models. We will create a custom manager to retrieve all posts with the published status.
There are two ways to add managers to your models: you can add extra manager methods or modify initial manager QuerySets. The first method provides you with a QuerySet API such as Post.objects.my_manager(), and the latter provides you with Post.my_manager.all(). The manager will allow us to retrieve posts using Post.published.all().
Edit the models.py file of your blog application to add the custom manager:
class PublishedManager(models.Manager): def get_queryset(self): ...
