Jorge,
I can't thank you enough for explaining this, but I'm still a little
stuck.
On Jul 3, 2006, at 6:46 PM, Jorge Gajon wrote:
> # No post, fill up default values
> new_data['some_field'] = 'default value'
>
> form = form.FormWrapper(manipulator, new_data, errors)
> return render_to_response('some_template.html', {'form': form})
>
This works great. In the shell, I try str(form['some_field']) and the
value is pre-populated as expected.
> and for a ForeignKey:
> related_object = OtherObject.objects.get(pk=23)
> new_data['related_object'] = str(related_object.id)
This, not so much. The related object entry is in the data field of
the FormWrapper when I look at it, but if I render the SelectField it
corresponds to, the empty entry is pre-selected, not the entry that
corresponds to the related_object. Is it not possible to pre-select
something in a SelectField, or do you have to do it some other way?
Also, since I don't really want the user to be able to change this,
it would be just as nice for me to replace the SelectField that the
AddManipulator creates with a HiddenField of my own, but I can't see
how to do that except manually in the template.
> If you want to use an automatic manipulator but want to only restrict
> the selections in a select list you could subclass the manipulator
> like this:
>
> class MyCustomManipulator(MyModel.AddManipulator):
> def __init__(self):
> MyModel.AddManipulator.__init__(self)
>
> for field in self.fields:
> if field.field_name == 'related_object':
> choices = [(obj.id, obj) for obj in
> RelatedObject.objects.filter(somecriteria)]
> field.choices = choices
I'm reminded of the scene in Amadeus when Salieri was reading
Mozart's music and just let it fall to the ground. That's very elegant.
Thanks,
Todd
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