On Sep 22, 8:59 pm, Jim <[email protected]> wrote:
> Hello,
>
> I have a widget that makes suckerfish menus (the kind of menu that is
> written in css and where if you hover your mouse over a menu item any
> subitems appear).
>
> I have some data that can be displayed according to three dimensions.
> (For instance, I could characterize contributers by gender, by
> political persuasion, and by nationality.) I want to get the tree of
> choices out of the database and to the widget, by dimension.
>
> Thus, if the url is contributer/gender then the choices might be
> [ ('male', ['male'] ), ('female', ['female']) ]
> while if the url is contributer/politics then the choices given to the
> widget might be this.
> [ ('democrat', ['democrat']), ('republican', ['republican']),
> ('looney', ['looney']),
> ('looney > right wing', ['looney','right wing']), ('looney >
> left wing', ['looney','left wing'])]
> (I could show the widget if folks thought it would be helpful.)
>
> I have this form and field.
>
> class CharacterizationForm(forms.Form):
> def __init__(self,*args,**keywords):
> if dimen in keywords: # make any sense?
> self.dimen=dimen
> super(CharacterizationForm,self).__init__(*args,**keywords)
>
> pick=CharacterizationField
> (required=True,widget=widgets.CharacterizationWidget)
>
> class CharacterizationField(forms.ChoiceField):
> --some stuff--
> super(CharacterizationField, self).__init__(choices=choices,
> required=required, widget=widget, label=label, initial=initial)
> self.widget.choices=self.choices
>
> Of course, in the view I initialize the form in some way.
> f=MenuForm(initial={'dimen',dimen})
> came to mind, although perhaps that is not right? Now, how do I get
> the information about the dimen into the "--some stuff--", where I can
> then set up the choices from it?
>
> I have been looking at the forms and fields, but I admit I'm not
> getting it. Any help greatly appreciated.
>
> Jim
Do it all in the form's __init__.
class CharacterizationForm(forms.Form):
def __init__(self, *args, **kwargs):
dimen = kwargs.pop('dimen', None)
super(CharacterizationForm,self).__init__(*args, **kwargs)
if dimen:
self.fields['pick'].dimen = dimen
--
DR.
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