Question

class StatusForm(ModelForm):

    bases = forms.ModelMultipleChoiceField(
            queryset=Base.objects.all(),  #this should get overwritten
            widget=forms.SelectMultiple,
        )

    class Meta:
        model = HiringStatus
        exclude = ('company', 'date')

    def __init__(self, *args, **kwargs):
        super(StatusForm, self).__init__(*args, **kwargs)
        if kwargs.has_key('bases_queryset'):
            self.fields['bases'].queryset = kwargs['bases_queryset']

I want to add an option to this form that allows me to create a form like so:

form = StatusForm(bases_queryset=Base.objects.filter([...])

But I somehow need to “add” that keyword argument to the class so it will be recognized. They way it is now, I just get this error:

__init__() got an unexpected keyword argument 'bases_queryset'

Answer 1

That’s because you’re unpacking kwargs to the super constructor.
Try to put this before calling super:

if kwargs.has_key('bases_queryset'):
    bases_queryset = kwargs['bases_queryset']
    del kwargs['bases_queryset']

but it’s not an ideal solution…