Django: How to initiate/gather field data from two models in one form definition

Question

Hi all,

I'm using a Modelform for User to edit first_name and last_name, but I want an extra field from UserProfile (which has a 1-to-1 relation with User) added to this.

class UserProfileInfoForm(forms.ModelForm):
    """ Profile Model field specifications for edit.
    """
    class Meta:
        model = User
        fields = ('first_name', 'last_name', 'user_phonemobile')

    first_name = forms.CharField(
                            label = _('First name'),
                            max_length = 30,
                            required = True
                            )
    last_name = forms.CharField(
                            label = _('Last name'),
                            max_length = 30,
                            required = True
                            )
    user_phonemobile = forms.CharField(
                            label = _('Mobile phone'),
                            max_length = 15,
                            required = False,
                            )

I have the extra field in the ModelForm (and displayed on the page) but I can't get it to populate with the value from the other model (UserProfile). Been trying to do it subclassing the init of the modelform but no luck so far.

I could ofcourse make it a normal form and populate it like this in my view

userdata  = request.user.get_profile()
data = {
    'first_name': request.user.first_name,
    'last_name': request.user.last_name,
    'user_phonemobile': userdata.user_phonemobile,
    }
profileinfoform = UserProfileInfoForm(data)

But when adding extra fields in the future it feels like this will clutter my view definition.

Regards,

Gerard.

Answer 1

I believe you're looking for inline formsets. They are designed for working with related objects.

Answer 2

I usually just create two forms, one for each model. See e.g. this message for an example.