Django - saving onetonone linked forms at same time not working - django

Question

I've have the following forms:
class UpdateProfile(forms.ModelForm):
username = forms.CharField(required=True)
email = forms.EmailField(required=True)
first_name = forms.CharField(required=True)
last_name = forms.CharField(required=True)
class Meta:
model = User
fields = ('username', 'email', 'first_name', 'last_name')
def clean_email(self):
username = self.cleaned_data.get('username')
email = self.cleaned_data.get('email')
if email and User.objects.filter(email=email).exclude(username=username).count():
raise forms.ValidationError('This email address is already in use. Please supply a different email address.')
return email
class UserDetailForm (forms.ModelForm):
linked_user = forms.CharField (required = True)
linked_password = forms.CharField (required = True, widget = forms.PasswordInput())
connections = forms.IntegerField (required = True)
class Meta:
model = User_detail
fields = ('linked_user','linked_password','connections')
I'm trying to save them at the same time if both valid using:
if request.method == 'POST':
form = UpdateProfile(request.POST, instance=request.user)
linked_form = UserDetailForm(request.POST, instance=request.user)
if all((form.is_valid(),linked_form.is_valid())):
user = form.save()
linked = linked_form.save(commit=False)
linked.user = user
linked.save()
msg = "Profile Updated"
else:
return error(request)
This is the User_detail model:
class User_detail (models.Model):
user = models.OneToOneField (
User,
on_delete = models.CASCADE
)
linked_user = models.CharField (
verbose_name = 'LinkedIn Username',
max_length = 50,
)
linked_password = models.CharField (
max_length = 50,
verbose_name = 'LinkedIn Password',
)
connections = models.IntegerField (
verbose_name = 'Connections per day',
default = 24,
)
def __unicode__(self):
return u'%s' % (self.user.first_name + ' ' + self.user.last_name)
The first form is being saved, the second isn't and I don't understand what I'm missing
Help much appreciated.

Answer 1

The problem is in linked_form = UserDetailForm(request.POST, instance=request.user). request.user is not an instance of model User_detail.
What is happening is that, django is trying to find the instance in the model and not finding any. You need to provide a valid User_detail instance so that django can update that instance.
Reference: save() method