mirror of
https://github.com/django/django.git
synced 2024-12-23 09:36:06 +00:00
54 lines
887 B
Python
54 lines
887 B
Python
from django.db import models
|
|
|
|
|
|
class Country(models.Model):
|
|
name = models.CharField(max_length=255)
|
|
iso_two_letter = models.CharField(max_length=2)
|
|
|
|
|
|
class ProxyCountry(Country):
|
|
class Meta:
|
|
proxy = True
|
|
|
|
|
|
class ProxyProxyCountry(ProxyCountry):
|
|
class Meta:
|
|
proxy = True
|
|
|
|
|
|
class ProxyMultiCountry(ProxyCountry):
|
|
pass
|
|
|
|
|
|
class ProxyMultiProxyCountry(ProxyMultiCountry):
|
|
class Meta:
|
|
proxy = True
|
|
|
|
|
|
class Place(models.Model):
|
|
name = models.CharField(max_length=100)
|
|
|
|
class Meta:
|
|
abstract = True
|
|
|
|
|
|
class Restaurant(Place):
|
|
pass
|
|
|
|
|
|
class Pizzeria(Restaurant):
|
|
pass
|
|
|
|
|
|
class State(models.Model):
|
|
two_letter_code = models.CharField(max_length=2, primary_key=True)
|
|
|
|
|
|
class TwoFields(models.Model):
|
|
f1 = models.IntegerField(unique=True)
|
|
f2 = models.IntegerField(unique=True)
|
|
|
|
|
|
class NoFields(models.Model):
|
|
pass
|