Form that saves data into multiple models

Hello,

I have 2 models: car and salesman. I want to make a form based off the car model. Salesman name is a foreign key in the car model. In the form, I want to be able to enter the salesman's name and if it doesn't exist already then create a new salesman.

So I have something like this in forms.py

class Car(forms.ModelForm):

salesman_name = forms.CharField()

class Meta:

model = Car

But when I enter something into the salesman_name field it errors:

Cannot assign "u'x'": "Salesman.name" must be a "Salesman" instance.

How do I override that? So that it creates a new salesman when the entered one doesn't match a current one?

Thank you,

Lev

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