40 lines
1019 B
Python
40 lines
1019 B
Python
"""
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33. get_or_create()
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``get_or_create()`` does what it says: it tries to look up an object with the
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given parameters. If an object isn't found, it creates one with the given
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parameters.
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"""
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from __future__ import unicode_literals
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from django.db import models
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from django.utils.encoding import python_2_unicode_compatible
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@python_2_unicode_compatible
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class Person(models.Model):
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first_name = models.CharField(max_length=100)
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last_name = models.CharField(max_length=100)
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birthday = models.DateField()
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def __str__(self):
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return '%s %s' % (self.first_name, self.last_name)
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class ManualPrimaryKeyTest(models.Model):
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id = models.IntegerField(primary_key=True)
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data = models.CharField(max_length=100)
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class Profile(models.Model):
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person = models.ForeignKey(Person, primary_key=True)
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class Tag(models.Model):
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text = models.CharField(max_length=255, unique=True)
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class Thing(models.Model):
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name = models.CharField(max_length=256)
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tags = models.ManyToManyField(Tag)
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