54 lines
1.3 KiB
Python
54 lines
1.3 KiB
Python
"""
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17. Custom column names
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If your database column name is different than your model attribute, use the
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``db_column`` parameter. Note that you'll use the field's name, not its column
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name, in API usage.
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"""
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from django.db import models
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class Person(models.Model):
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first_name = models.CharField(maxlength=30, db_column='firstname')
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last_name = models.CharField(maxlength=30, db_column='last')
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def __str__(self):
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return '%s %s' % (self.first_name, self.last_name)
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__test__ = {'API_TESTS':"""
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# Create a Person.
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>>> p = Person(first_name='John', last_name='Smith')
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>>> p.save()
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>>> p.id
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1
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>>> Person.objects.all()
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[<Person: John Smith>]
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>>> Person.objects.filter(first_name__exact='John')
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[<Person: John Smith>]
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>>> Person.objects.get(first_name__exact='John')
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<Person: John Smith>
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>>> Person.objects.filter(firstname__exact='John')
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Traceback (most recent call last):
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...
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TypeError: Cannot resolve keyword 'firstname' into field
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>>> p = Person.objects.get(last_name__exact='Smith')
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>>> p.first_name
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'John'
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>>> p.last_name
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'Smith'
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>>> p.firstname
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Traceback (most recent call last):
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...
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AttributeError: 'Person' object has no attribute 'firstname'
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>>> p.last
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Traceback (most recent call last):
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...
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AttributeError: 'Person' object has no attribute 'last'
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"""}
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