擅长:python、mysql、java
<pre><code>from django.db import models
class EnumField(models.Field):
"""
A field class that maps to MySQL's ENUM type.
Usage:
class Card(models.Model):
suit = EnumField(values=('Clubs', 'Diamonds', 'Spades', 'Hearts'))
c = Card()
c.suit = 'Clubs'
c.save()
"""
def __init__(self, *args, **kwargs):
self.values = kwargs.pop('values')
kwargs['choices'] = [(v, v) for v in self.values]
kwargs['default'] = self.values[0]
super(EnumField, self).__init__(*args, **kwargs)
def db_type(self):
return "enum({0})".format( ','.join("'%s'" % v for v in self.values) )
</code></pre>