Question

Hello, I’m trying to use a modified __init__ form method, but I am encountering the following error:

TypeError
__init__() got multiple values for keyword argument 'vUserProfile'

I need to pass UserProfile to my form, to get to dbname field, and I think this is a solution (my form code):

class ClienteForm(ModelForm):
class Meta:
    model = Cliente

def __init__(self, vUserProfile, *args, **kwargs):
    super(ClienteForm, self).__init__(*args, **kwargs)
    self.fields["idcidade"].queryset = Cidade.objects.using(vUserProfile.dbname).all()

Calls to constructor ClienteForm() without POST are successful and show me the correct form. But when the form is submitted and the constructor is called with POST, I get the previously described error.

Answer 1

You’ve changed the signature of the form’s __init__ method so that vUserProfile is the first argument. But here:

formPessoa = ClienteForm(request.POST, instance=cliente, vUserProfile=profile)

you pass request.POST as the first argument – except that this will be interpreted as vUserProfile. And then you also try to pass vUserProfile as a keyword arg.

Really, you should avoid changing the method signature, and just get the new data from kwargs:

def __init__(self, *args, **kwargs):
    vUserProfile = kwargs.pop('vUserProfile', None)