OK, I think I've answered my own question, though I'll need to test
it.
Instead of overriding FooModelForm's __init__(), I'd just create
create a FooModelForm with "FooModelForm (initial = {'bar':
some_bar})". I also detected some naming errors since my last post.
On Dec 12, 11:03 am, Aaron <aa...@genieknows.com> wrote:
> Say I have this model:
>
> model Foo(models.Model):
> bar = models.ForeignKey(Baz)
>
> I have a ModelForm for Foo (FooModelForm). However, instead of having
> a ModelChoiceField for bar, I want a single bar object in a hidden
> field that's specified when creating the FooModelForm.
>
> my_bar = Baz.objects.get(filter)
> my_foo_form = FooModelForm(bar = my_bar)
>
> I'm not sure how to do this though. This was my first crack at it:
>
> class FooModelForm(forms.ModelForm):
> bar = forms.ModelChoiceField(queryset = Baz.objects.all(), widget
> = forms.HiddenInput())
>
> class Meta:
> model = Foo
>
> def __init__(self, *args, **kwargs):
> new_bar = kwargs['bar']
> del kwargs['bar'] # I get "__init__() got an unexpected
> keyword argument 'bar'" if I don't do this
> super(FooModelForm, self).__init__(*args, **kwargs)
> self.fields['bar'].default = new_bar
>
> When I render a form with a template, the hidden input tag has nothing
> set for it's value attribute in the HTML. I also tried setting
> 'self.fields['bar'].default' to 'new_bar.pk', but there still wasn't a
> value attribute.
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