class ContactForm(forms.Form):

    def save(self, session=None, app_label=None):
        """ Save or update a new `Contact` """    
        # create this composite entity
        _data = {}
        for key,val in self.cleaned_data.items():
            _data[app_label+'--%s' % key] = val
        fs = FieldSet(Contact, session=session, data=_data)
        if fs.validate():
            fs.sync()
        return None