Django 1.6：编辑配置文件：列用户名不是唯一的

我正在尝试创建编辑用户个人资料功能。但是我收到以下错误。我觉得它正在尝试创建一个新用户，而不是编辑现有用户。因此，这可能导致用户名不唯一。我不知道要在这里更改/添加什么。

这是我的看法

def showProfile(request, id):
    profile = DoctorSeeker.objects.get(id=id)
    return render(request,'meddy1/seekerprofile.html',{'doctorSeeker': profile})

def update_profile(request):
    args = {}

    if request.method == 'POST':
        form = UserUpdateForm(request.POST)
        if form.is_valid():
            form.save()
            return render(request, showProfile())

    else:
        form = UserUpdateForm()

    args['form'] = form
    return render(request, 'meddy1/editseekerprofile.html', args)

这是我的表格

class UserUpdateForm(forms.ModelForm):
    name = forms.CharField(max_length=200, widget=forms.TextInput(attrs={'class': 'form-control','placeholder':'FirstName LastName'}))
    email = forms.EmailField(required=True, widget=forms.TextInput(attrs={'class': 'form-control','placeholder':'Please enter a valid email address so we can reach you. No spam. Ever.'}))

    password1 = forms.CharField(label="Old Password",widget=forms.PasswordInput(attrs={'class': 'form-control','placeholder':'Enter your password to save the changes.'}),required=False)
    password2 = forms.CharField(label="New Password?",widget=forms.PasswordInput(attrs={'class': 'form-control','placeholder':'Only enter new password if you want to change it.'}),required=False)
    password3 = forms.CharField(label="Confirm New Password",widget=forms.PasswordInput(attrs={'class': 'form-control','placeholder':'Confirm New Password'}),required=False)



    class Meta:
        model = DoctorSeeker
        fields = ("name","email")

    class Meta:
        model = User
        fields = ("password2", "password3")

    def clean_password2(self):
        password2 = self.cleaned_data.get("password2")
        password3 = self.cleaned_data.get("password3")
        if password2 and password3 and password2 != password3:
            raise forms.ValidationError(
                self.error_messages['password_mismatch'],
                code='password_mismatch',
            )
        return password2

    def save(self, commit=True):
        user = super(UserUpdateForm, self).save(commit=False)
        user.set_password(self.cleaned_data["password2"])
        fullName = self.cleaned_data["name"]
        Email = self.cleaned_data["email"]

    if commit:
        user.save()
        userProfile = DoctorSeeker(user=user, name=fullName, email=Email)
        userProfile.save()

    return user