Thanks v
What you said echoes what I found on a posting on djangosnippet.org
about populating the choices in the init field. It works fine now.
On May 26, 9:30 am, V <viktor.n...@gmail.com> wrote:
> On May 25, 1:27 pm, Simon Davies <simon...@gmail.com> wrote:
>
>
>
> > I have a choices field called status in my model form which can be set
> > to a number of values, however the options available will be based on
> > its current state something like this, so it needs to refer to itself:
>
> > class ContractForm(ModelForm):
>
> > def getStatusChoices()
> > if status == 'r':
> > return (('C', 'Confirmed'), ('N', 'Cancelled))
> > elif status == 'C':
> > return (('M', 'Completed'), ('P', 'Paid'))
> > ....
>
> > status = fields.ChoiceField(choices=getStatusChoices())
>
> > I read in another thread that you can do this by accessing and setting
> > the self.fields['status'] which contains the status state of the
> > current object and is created by the meta form class. How do I access
> > self in the model function. If i pass it in as a parameter to the
> > method as shown below what should the function call look like in the
> > status field, i.e. how do I refer to the current object to be passed.
>
> > def getStatusChoices(self):
> > if not self.key:
> > self.fields['STATUS'] = (('R', 'Requested'),
> > ('C', 'Confirmed'))
> > elif self.fields['STATUS'] == 'R':
> > self.fields['STATUS'] = (('N', 'Cancelled'),
> > ('C', 'Confirmed'))
> > return self
>
> > Thanks
>
> > Simon
>
> Hi,
>
> it might help if you post a bit more from your form definition, but
> I'll try to answer. Take the following example:
>
> class MyForm(forms.Form):
>
> status_choices = forms.ChoiceField(choices=(('0', 'False'),))
>
> def __init__(self, *args, **kwargs):
> super(MyForm, self).__init__(*args, **kwargs)
> if kwargs.has_key('initial') and kwargs['initial'].has_key
> ('status'):
> self.fields['status_choices'].choices = getStatusChoices(kwargs
> ['initial']['status']
>
> that is you would like to set the available choices for the
> status_choices field. You do this in the form's __init__ method. First
> you initialise the form as usual (see the super line), then you adjust
> the choices value of the status_choices field. Clearly, in my setting
> the getStatusChoices function should return a valid choices tuple.
>
> have a nice day
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