Hi Cal!
Thank you very much for your reply and advice, but unfortunately it doesn't
work. It seems like in __init__ method we can't re-assign the choices. Even
if I try:
class Something(models.Model):
def __init__(self, *args, **kwargs):
_choices = ((SomeValue, 'SomeString'), )
self.range_marks = models.IntegerField(choices = _choices,
verbose_name = 'Marks of Something')
super(Something, self).__init__(*args, **kwargs)
In admin page I see that my field has choices option initially defined in
global scope (I've showed that definition in my first letter).
Any suggestions about how I can assign choice attribute on the fly during
instance creation. In future It doesn't change but my instances have to have
different ranges in choices option.
Best Regards,
Alex
On 2 December 2010 10:15, Cal Leeming [Simplicity Media Ltd] <
cal.leem...@simplicitymedialtd.co.uk> wrote:
> Hi Alex,
>
> I think this is what you might be looking for.
>
>
> class Something(models.Model):
> def __init__(self, *args, **kwargs):
> if kwargs.has_key('range_marks'):
> _choices = kwargs.get('range_marks')
> del kwargs['range_marks']
> else:
> _choices = (('default', 'default'), )
> self.range_marks = models.IntegerField(choices = _choices,
> verbose_name = 'Marks of Something')
> super(Something, self).__init__(*args, **kwargs)
>
> Let us know if it works :)
>
> Cheers
>
> Cal
>
>
> On 02/12/2010 06:53, Alex Boyko wrote:
>
>> Hi!
>>
>> I got such kind of problem.
>> I'd like to define the tuple(list) of choices option at the moment of
>> instance created on the fly
>> In the future these choices will not change.
>> Hence I've found just one way to do it - override __init__() of my model
>> and
>> pass there the particular predefined list of choices that depends on
>> current model's instance (in code - 'range_list')
>> But this approach seems doesn't work properly.
>> Would You be so kind to help with advice - how I can solve my task with
>> dynamical choices per model's instance.
>>
>> ---------------------------------------
>> RANGE_CHOICES = ()
>>
>> class Something(models.Model):
>> def __init__(self, *args, **kwargs):
>> range = kwargs.pop('range_list', None)
>> super(Covenant, self).__init__(*args, **kwargs)
>> self._meta.get_field_by_name('range_marks')[0]._choices = range
>>
>> range_marks = models.IntegerField(choices = RANGE_CHOICES, verbose_name
>> = 'Marks of Something')
>> -----------------------------------------
>>
>>
>> Thanks in Advance!
>> Best Regards!
>> Alex
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