django - Elegantly set a single attribute of a Model used in a OneToOneField using a ModelForm -

i able update height attribute of mylittlemodel using mymodelform(onetoonefield(mylittlemodel)) follows:

models.py

class mylittlemodel(models.model):     height = models.integerfield()     has_color = models.nullbooleanfield(null=true, blank=true)   class mymodel(models.model):     my_little_model = models.onetoonefield(mylittlemodel)     age = models.integerfield()     is_male = models.booleanfield(default=false) 

forms.py

class mymodelform(forms.modelform):     height = forms.integerfield(max_length=30)      class meta:         model = mymodel         fields = ("height",            "age") 

views.py

class myupdateview(updateview):     form_class = mymodelform     model = mymodel     template_name = 'my_template.html'      def form_valid(self, form):         my_little_model = mylittlemodel.objects.create(form.cleaned_data["height"])         form.instance.my_little_model = my_little_model         form.instance.save()         return super(myupdateview, self).form_valid(form)      def get_success_url(self):         return reverse("my_list_view") 

urls.py

urlpatterns = patterns('',     url(regex=r'^update/(?p<pk>\d+)/$', view=myupdateview.as_view(), name="my_update_view"), ) 

i think not coding style because forces modify code in modelform in view, preferable happen in 1 location.

so possible set value my_little_model.height without modifying views code did?

note: don't title question, if has suggestion renaming more readable please let me know.

i overriding mymodelform's save method, so:

class mymodelform(forms.modelform):     height = forms.charfield(max_length=30)      class meta:         model = mymodel         fields = ("height",           "age")      def save(self, *args, **kwargs):         my_little_model = mylittlemodel.objects.create(height=self.cleaned_data["height"])         self.instance.my_little_model = my_little_model         self.instance.save()         return super(mymodelform2, self).save(*args, **kwargs) 

then view becomes:

class myupdateview(updateview):     template_name = "my_template.html"     form_class = mymodelform     model = mymodel      def get_success_url(self):         return reverse("my_list_view") 

this way, logic updating model information lives in form - if want change what's being updated, can in 1 place.