Simple model showing a custom manager usage

custom_manager_model.py

class PublishedManager(models.Manager):
    def get_queryset(self):
        return super(PublishedManager, self).get_queryset().filter(status='published')
    
    
class Post(models.Model):
    STATUS_CHOICES = (
            ('draft', 'Draft'),
            ('published', 'Published')
            )
    title = models.CharField(max_length=250)
    slug = models.SlugField(max_length=250, unique_for_date='publish')
    author = models.ForeignKey(User, related_name='blog_posts')
    body = models.TextField()
    publish = models.DateTimeField(default=timezone.now)
    created = models.DateTimeField(auto_now_add=True)
    updated = models.DateTimeField(auto_now=True)
    status = models.CharField(max_length=10, choices=STATUS_CHOICES, default='draft')
    
    objects = models.Manager()
    published = PublishedManager()