Natural integration of business logic with a Django Model

models.py

class BlogPostUtils:
    def __init__(self, post):
        self.post = post

    def before_save(self)
        self.post.content = bleach.clean(self.post.content)


class BlogPost(models.Model):

    # Class to be used for utility functions related to this class
    utils = BlogPostUtils

    title = models.CharField(null=False, max_length=250)
    content = models.TextField()
    created_by = models.ForeignKey(User, on_delete=models.PROTECT)
    created_date = models.DateTimeField(auto_now_add=True, null=False)
 
    def save(self, *args, **kwargs):
        if self.utils:
            module = self.utils(self)
            module.before_save()
        return super().save(*args, **kwargs)

~settings.json

{
  "title": "Django Business Logic",
  "slug": "some-slug"
}