mirror of https://github.com/django/django.git
31 lines
871 B
Python
31 lines
871 B
Python
"""
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8. get_latest_by
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Models can have a ``get_latest_by`` attribute, which should be set to the name
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of a ``DateField`` or ``DateTimeField``. If ``get_latest_by`` exists, the
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model's manager will get a ``latest()`` method, which will return the latest
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object in the database according to that field. "Latest" means "having the date
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farthest into the future."
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"""
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from django.db import models
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class Article(models.Model):
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headline = models.CharField(max_length=100)
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pub_date = models.DateField()
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expire_date = models.DateField()
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class Meta:
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get_latest_by = 'pub_date'
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def __unicode__(self):
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return self.headline
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class Person(models.Model):
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name = models.CharField(max_length=30)
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birthday = models.DateField()
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# Note that this model doesn't have "get_latest_by" set.
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def __unicode__(self):
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return self.name
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