# -*- coding: utf-8 -*-

"""

Bare-bones model

This is a basic model with only two non-primary-key fields.

"""

from django.db import models

from django.utils.encoding import python_2_unicode_compatible

@python_2_unicode_compatible

class Article(models.Model):

headline = models.CharField(max_length=100, default='Default headline')

pub_date = models.DateTimeField()

class Meta:

ordering = ('pub_date', 'headline')

def __str__(self):

return self.headline

class ArticleSelectOnSave(Article):

class Meta:

proxy = True

select_on_save = True

@python_2_unicode_compatible

class SelfRef(models.Model):

selfref = models.ForeignKey(

'self',

models.SET_NULL,

null=True, blank=True,

related_name='+',

)

def __str__(self):

# This method intentionally doesn't work for all cases - part

# of the test for ticket #20278

return SelfRef.objects.get(selfref=self).pk