28 lines
754 B
Python
28 lines
754 B
Python
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"""
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21. Specifying 'choices' for a field
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Most fields take a ``choices`` parameter, which should be a tuple of tuples
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specifying which are the valid values for that field.
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For each field that has ``choices``, a model instance gets a
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``get_fieldname_display()`` method, where ``fieldname`` is the name of the
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field. This method returns the "human-readable" value of the field.
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"""
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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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GENDER_CHOICES = (
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('M', 'Male'),
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('F', 'Female'),
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)
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@python_2_unicode_compatible
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class Person(models.Model):
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name = models.CharField(max_length=20)
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gender = models.CharField(max_length=1, choices=GENDER_CHOICES)
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def __str__(self):
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return self.name
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