Am 03.04.2012 21:31, schrieb Łukasz Langa:

since most people have something like this in their code, a better solution should require
only some additional characters.

GENDER_CHOICES = (
       (0, 'male'),
       (1, 'female'),
       (2, 'not specified'),
   )

# if this would be supported, updating the code would be easy
GENDER_CHOICES = Choices(
       (0, 'male'),
       (1, 'female'),
       (2, 'not specified'),
   )

#about Group
 >>> class License(Choices):
   ...   COPYLEFT = Choices.Group(0)
   ...   gpl_any = Choice("GPL, any")

I don't like Choices.Group. I think it is better if choices must be set explicit, not
implicit (auto-increment).

Here is my solution, which is similar to way3 in your proposal.

{{{

class ChoiceDict(SortedDict):
     '''
     Iterating this SortedDict will return
     the items (and not the keys). This is handy if
     you want to uses this for a choice list on
     a model field
     '''
     __iter__=SortedDict.iteritems

class Foo(models.Model):
     STATE_NEW='new'
     STATE_DONE='done'
     states=ChoiceDict((STATE_NEW, _('new')),
                       (STATE_DONE, _('done')),
                       )
     state=models.CharField(max_length=16, verbose_name=u'Status', default=STATE_NEU, choices=states)

I like this since, you can access the verbose string like this: Foo.states[obj.state]

--
Thomas Guettler, http://www.thomas-guettler.de/
E-Mail: guettli (*) thomas-guettler + de