Question

我扩展了Django用户模型并添加了我自己的字段，目前正在注册填写这些字段。表格似乎工作正常，除了保存之外的一切。

我用this来帮助我。

以下是用户模型的扩展名：

public function page_one() {
    $options = array(
        array( 'content1', 'Content1', 'The Content 1'),
        array( 'content2', 'Content2', 'The Content 2'),
        array( 'content3', 'Content3', 'The Content 3'),
    );

    $this->add_settings( 'page_one', $options );
    return $options;
}


public function generate_scripts() {
    $options = $this->page_one();
    foreach($options as $option) {
        echo $option[0];
    }
}

这是我的表格：

class StudentProfile(models.Model):
    user = models.OneToOneField(User, null = True, related_name='user', on_delete=models.CASCADE)
    teacher = models.BooleanField(default = False)
    school = models.CharField(max_length = 50)

def create_StudentProfile(sender, **kwargs):
    if kwargs['created']:
        user_profile = StudentProfile.objects.create(user = kwargs['instance'])


post_save.connect(create_StudentProfile, sender = User)

以下是我的观点：

class StudentRegistrationForm(UserCreationForm):
    email = forms.EmailField(required = True)
    school = forms.CharField(required = True)

    def __init__(self, *args, **kwargs):
        super(StudentRegistrationForm, self).__init__(*args, **kwargs)
        self.fields['username'].help_text = ''
        self.fields['password2'].help_text = ''


    class Meta:
        model = User

        fields = (
            'username',
            'first_name',
            'last_name',
            'email',
            'school',
            'password1',
            'password2'            
        )

    def save(self, commit = True):
        user = super(StudentRegistrationForm, self).save(commit = False)
        user.first_name = self.cleaned_data['first_name']
        user.last_name = self.cleaned_data['last_name']
        user.email = self.cleaned_data['email']


        student_profile = StudentProfile(user = user, school = self.cleaned_data['school'])

        if commit:
            user.save()
            student_profile.save()

        return user, student_profile

这是我的追溯：

def registration(request):
    if request.method == 'POST':
        form = StudentRegistrationForm(request.POST)
        if form.is_valid():
            user, user_profile = form.save(commit = False)
            form.save()
            return render(request, 'accounts/home.html')
        else:
            args = {'form': form}
            return render(request, 'accounts/reg_form.html', args)

    else:
        form = StudentRegistrationForm()

        args = {'form': form}
        return render(request, 'accounts/reg_form.html', args)

谢谢！

Answer 1

您必须使用User模型创建用户，然后您必须将此用户传递给StudentProfile，因为它是onetoone字段StudentProfile。

def save(self, request):
        form = StudentRegistrationForm(request.POST)
        user = User.objects.create(first_name=form.cleaned_data['first_name'],
                            last_name=form.cleaned_data['last_name'],
                            email=form.cleaned_data['email'],
                            username=form.cleaned_data['username'])
        user_profile = StudentProfile.objects.create(user=user,
                                                teacher=form.cleaned_data['teacher'],
                                                school=form.cleaned_data['school'])


        return user, student_profile

Answer 2

看起来似乎没有保存use对象，因此它可以存储其引用的StudentProfile模型。

Answer 3

这里有很多问题。

当前的问题是你在两个地方创建了UserProfile。您已经注册了一个信号处理程序 - create_StudentProfile - 在创建用户时自动创建一个;但你也在用save方法创建一个新方法。

您应该考虑是否真的需要该信号处理程序。如果您总是要通过此表单创建用户，则不需要该处理程序。

如果您确定需要信号，那么您需要重做保存方法以考虑它。类似的东西：

def save(self, commit=True):
    user = super(StudentRegistrationForm, self).save(commit = False)
    if commit:
        user.save()
        profile = user.userprofile
    else:
        profile = UserProfile(user=user)

    profile.school = self.cleaned_data['school']

    if commit:
        profile.save()

    return user, student_profile

您会注意到无需设置电子邮件和姓名，因为这些是通过超级电话中已有的表单完成的。

第二个问题是您在视图中两次调用save方法。不要那样做。

    if form.is_valid():
        user, user_profile = form.save()
        return render(request, 'accounts/home.html')

保存表单时Django完整性错误

3 个答案: