[DJ12] Order of Model's inner classes, methods, and fields does not follow the Django Style Guide

The Django Style Guide specifies that the order of Model inner classes, attributes and methods should be as follows:

1. All database fields
2. Custom manager attributes
3. class Meta
4. def __str__()
5. def save()
6. def get_absolute_url()
7. Any custom methods

Don't

from django.db import models


class Post(models.Model):
    class Meta:
        verbose_name = 'post'

    title = models.CharField(max_length=150, null=True, blank=True)

    def custom_method(self):
        print("I should come after the save method")

    def save(self):
        super().save()

Do

from django.db import models


class Post(models.Model):
    title = models.CharField(max_length=150, null=True, blank=True)
    
    class Meta:
        verbose_name = 'post'

    def save(self):
        super().save()

    def custom_method(self):
        print("I should come after the save method")

References

https://docs.djangoproject.com/en/dev/internals/contributing/writing-code/coding-style/#model-style