Hi, thanks for the pointers, I followed through Bill's suggestion,
and while I could understand the approach I did indeed have problems
with ''access to data from the request'' as this was all happening in
the models.py in a class definition. But, reading around it and a
little more google I ended up with the following,
class aForm(ModelForm):
something=forms.ModelChoiceField(queryset=User.objects.none())
def __init__(self, *args, **kwargs):
queryset=kwargs.pop('queryset',None)
super(aForm, self).__init__(*args, **kwargs)
if queryset!=None:
self.fields["something"].queryset = queryset
class Meta:
model=themodel
Then, I can restrict the choices available from a view with,
someform=aForm(queryset=somemodel.objects.filter(associated_user=request.user))
This work fine, though I dont feel so good about passing
User.objects.none() - is there a 'proper' way to get an EmptyQuerySet?
Thanks,
matt.
On Mar 2, 4:28 pm, Alex Robbins <alexander.j.robb...@gmail.com> wrote:
> If you set limit_choices_to on the underlying foreign key, I think
> that shows up in any modelform derived from it too.
>
> http://docs.djangoproject.com/en/dev/ref/models/fields/#django.db.mod...
>
> Hope that helps,
> Alex
>
> On Mar 1, 8:24 am, AlienBaby <matt.j.war...@gmail.com> wrote:
>
> > Hi.
>
> > I have a situation very similar to the following;
>
> > [code]
>
> > class chars(models.Model):
> > name=moels.CharField('Name',max_length=32)
>
> > associated_id=models.IntegerField('Associated',blank=False,null=False)
> > associated_id.default=0
>
> > class ctor(models.Model):
> > A=models.ForeignKey(chars,blank=False,null=False)
> > B=models.CharField('Text',max_length=512)
>
> > [/code]
>
> > I would like to generate a form using ModelForm. I started with
>
> > [code]
>
> > class ctorForm(ModelForm):
> > class Meta:
> > model=ctor
>
> > [/code]
>
> > This generates a form, but when rendered the A field of ctor becomes a
> > selectable list of all entries in chars.
>
> > I would like the A field of the ctorForm to be a selectable list of
> > only the entries in chars whose associated_id matches the ID of the
> > currently logged in user. (login sessions are handled by django auth,
> > or django authopenid)
>
> > I'd like to stick to creating the form using ModelForm if it's
> > possible.
>
> > cheers,
>
>
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