Inheritance sample

gistfile1.py

from django.db import models

class Profile(models.Model):
    title = models.CharField(max_length=200)

class UserProfile(Profile):
    user = models.OneToOneField('auth.user')

class OrganizationProfile(Profile):
    users = models.ManyToManyField('auth.user')

class Post(models.Model):
    profile = models.ForeignKey(Profile)