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django/tests/modeltests/get_latest/models.py
Aymeric Augustin d4a0b27838 [py3] Refactored __unicode__ to __str__.
* Renamed the __unicode__ methods
* Applied the python_2_unicode_compatible decorator
* Removed the StrAndUnicode mix-in that is superseded by
  python_2_unicode_compatible
* Kept the __unicode__ methods in classes that specifically
  test it under Python 2
2012-08-12 14:44:40 +02:00

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Python

"""
8. get_latest_by
Models can have a ``get_latest_by`` attribute, which should be set to the name
of a ``DateField`` or ``DateTimeField``. If ``get_latest_by`` exists, the
model's manager will get a ``latest()`` method, which will return the latest
object in the database according to that field. "Latest" means "having the date
farthest into the future."
"""
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)
pub_date = models.DateField()
expire_date = models.DateField()
class Meta:
get_latest_by = 'pub_date'
def __str__(self):
return self.headline
@python_2_unicode_compatible
class Person(models.Model):
name = models.CharField(max_length=30)
birthday = models.DateField()
# Note that this model doesn't have "get_latest_by" set.
def __str__(self):
return self.name