django/tests/modeltests/choices/models.py

28 lines
754 B
Python

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