> class CountryField(models.CharField):
> def __init__(self, *args, **kwargs):
> kwargs.setdefault('max_length', 2)
> kwargs.setdefault('choices', COUNTRIES)
> super(CountryField, self).__init__(*args, **kwargs)
Btw, the reason this doesn't work is because setdefault doesn't work
as you think it does. See [1] for an example.
For the 'layer violation', you might try:
class CountryField(models.CharField):
def __init__(self, *args, **kwargs):
super(CountryField, self).__init__(*args, **kwargs)
self.choices = sorted(COUNTRIES, key=lambda c: c[1])
...
I haven't tried this but it might work.
Cheers
[1]http://www.saltycrane.com/blog/2010/02/python-setdefault-example/
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