Django Model Manager

models.py

from django.db import models
from django.conf import settings


User = settings.AUTH_USER_MODEL

class BlogQuerySet(models.QuerySet):
    def published(self):
        return self.filter(published=True)

    def tag_movies(self):
        return self.filter(tags__name='Movies')


class BlogManager(models.Manager):
    def get_queryset(self):
        # return super().get_queryset().filter(published=True)
        # return BlogQuerySet(self.model).filter(published=True)
        return BlogQuerySet(self.model)

    def published(self):
        # return self.get_queryset().filter(published=True)
        return self.get_queryset().published()

    def tag_movies(self):
        # return self.get_queryset().filter(tags__name='Movies')
        return self.get_queryset().tag_movies()


class Tags(models.Model):
    name = models.CharField(max_length=255)

    def __str__(self):
        return self.name


class Blog(models.Model):
    published = models.BooleanField(default=False)
    title     = models.CharField(max_length=255)
    body      = models.TextField(blank=True, null=True)
    tags      = models.ManyToManyField(Tags, blank=True)
    author    = models.ForeignKey(User, on_delete=models.SET_NULL, blank=True, null=True)
    created   = models.DateTimeField(auto_now=False, auto_now_add=True)
    updated   = models.DateTimeField(auto_now=True, auto_now_add=False)

    objects = models.Manager()
    blogposts = BlogManager()

    def __str__(self):
        return self.title