Question

I have a simple form which uses a queryset that is set dynamically:

class FooForm(forms.Form):
    bar = forms.ModelChoiceField(queryset = Bar.objects.none())

    def __init__(self, queryset=None, *args, **kwargs):
        super(FooForm, self).__init__(*args, **kwargs)
        self.fields['bar'].queryset = queryset    

I’d like to use this as one of my forms in a FormWizard, but I can’t figure out how I can get FormWizard to pass on the queryset. Is this possible at all?

Answer 1

I think you could override the “get_form” method for that particular wizard

class MyWizard(FormWizard):
    def __init__(self, *args, **kwargs):
        self.querysets = kwargs.pop('querysets', None)
        super(self, MyWizard).__init__(*args, **kwargs)

    def get_form(self, step, data=None, *args, **kwargs):
      return self.form_list[step](data, prefix=self.prefix_for_step(step), initial=self.initial.get(step, None), queryset=self.querysets.get(step, None))

    def done(self, *args, **kwargs): pass