Python 使用一对一字段扩展Django用户框架，错误：唯一约束失败：userprofile\u profile.User\u id

我想用一对一字段扩展Django用户框架。这样，我可以在注册时将数据保存在userprofile中。 注册后，用户数据作为新用户保存在admin user中。但是，

唯一约束失败：userprofile\u profile.user\u id发生错误，
profile.save（）
语句在错误页面中显示灰色。
此外，数据（学生ID和CBNU ID）不会保存在用户配置文件中

如何解决错误
如何在userprofile中保存数据
我正在关注这个youtube教程

这是视图.py

from django.shortcuts import render, redirect
from django.http import HttpResponse

from django.views.generic import TemplateView, CreateView
from django.contrib.auth.mixins import LoginRequiredMixin

from .forms import SignUpForm, ProfileForm
from django.urls import reverse_lazy
  
from .models import *
from django.contrib import messages


class HomeView(TemplateView):
    template_name = 'common/home.html'

class DashboardView(TemplateView):
    template_name = 'common/dashboard.html'
    login_url = reverse_lazy('login')

def update_profile(request):
    if request.method == 'POST':
        form = SignUpForm(request.POST)
        profile_form = ProfileForm(request.POST)

        if form.is_valid() and profile_form.is_valid():
            user = form.save()

            profile = profile_form.save(commit=False)
            profile.user = user

            profile.save()

            username = form.cleaned_data.get('username')
            password = form.cleaned_data.get('password')
            user = authenticate(username=username, password=password)
            login(request, user)
            return redirect('login')

    else:
        form = SignUpForm()
        profile_form = ProfileForm()
    
    context = {'form': form, 'profile_form': profile_form}
    return render(request, 'common/register.html', context)


from django.contrib.auth import authenticate, login

def user_login(request):

    if request.method == 'POST':
        username = request.POST['username']
        password = request.POST['password']

        user = authenticate(request, username=username, password=password)
        

        if user is not None:
            login(request, user)
            return redirect('dashboard')
        else:
            return render(request, 'common/login.html', {'error' : 'username or password is incorrect.'})
    else:
        return render(request, 'common/login.html')

from django import forms
from django.contrib.auth.models import User
from django.contrib.auth.forms import UserCreationForm
from apps.userprofile.models import Profile

class SignUpForm(UserCreationForm):

    first_name = forms.CharField(max_length=30, required=False, help_text='Optional', widget=forms.TextInput(attrs={'placeholder': 'Your first name'}))
    last_name = forms.CharField(max_length=30, required=False, help_text='Optional', widget=forms.TextInput(attrs={'placeholder': 'Your last name'}))
    email = forms.EmailField(max_length=254, required=False, help_text='Enter a valid email address', widget=forms.EmailInput(attrs={'placeholder': 'Your email'}))
    password = forms.CharField(max_length=30, required=False, help_text='Optional', widget=forms.TextInput(attrs={'placeholder': 'Password'}))
    password2 = forms.CharField(max_length=30, required=False, help_text='Optional', widget=forms.TextInput(attrs={'placeholder': 'Repeat your password'}))


    class Meta:
        model = User
        widgets = {
            'username': forms.TextInput(attrs={'placeholder': 'Username'})
        }
        fields = [
            'username', 
            'first_name', 
            'last_name', 
            'email', 
            'password', 
            'password2', 
        ]

class ProfileForm(forms.ModelForm):
   
    class Meta:
        model = Profile
        fields= [ 'student_ID', 'CBNU_PW' ]
        widgets = {
            'student_ID': forms.TextInput(attrs={'placeholder': 'student_ID'}),
            'CBNU_PW': forms.TextInput(attrs={'placeholder': 'CBNU_PW'})
        }

from django.db import models
from django.contrib.auth.models import User
from django.db.models.signals import post_save
from django.dispatch import receiver


class Profile(models.Model):

    user = models.OneToOneField(User, on_delete=models.CASCADE)
    student_ID = models.CharField(max_length=30, blank=True)
    CBNU_PW = models.CharField(max_length=30, blank=True)

    def __str__(self):
        return '%s %s' % (self.user.first_name, self.user.last_name)

@receiver(post_save, sender=User)
def create_user_profile(sender, instance, created, **kwargs):
    if created:
        Profile.objects.create(user=instance)

@receiver(post_save, sender=User)
def save_user_profile(sender, instance, **kwargs):
    instance.profile.save()

from django.contrib import admin
from django.shortcuts import redirect
from django.urls import path
from apps.common.views import DashboardView, user_login, HomeView, update_profile
from django.contrib.auth import views as auth_views
# from apps.common.forms import register


urlpatterns = [
    path('admin/', admin.site.urls),
    path('dashboard/', DashboardView.as_view(), name='dashboard'),
    path('', HomeView.as_view(), name='home'),
    path('register/', update_profile, name='register'),
    
    path('login/', user_login, name='login'),

    path('logout/', auth_views.LogoutView.as_view(
        next_page='dashboard'
        ),
        name='logout'
    ),
]

这是forms.py

from django.shortcuts import render, redirect
from django.http import HttpResponse

from django.views.generic import TemplateView, CreateView
from django.contrib.auth.mixins import LoginRequiredMixin

from .forms import SignUpForm, ProfileForm
from django.urls import reverse_lazy
  
from .models import *
from django.contrib import messages


class HomeView(TemplateView):
    template_name = 'common/home.html'

class DashboardView(TemplateView):
    template_name = 'common/dashboard.html'
    login_url = reverse_lazy('login')

def update_profile(request):
    if request.method == 'POST':
        form = SignUpForm(request.POST)
        profile_form = ProfileForm(request.POST)

        if form.is_valid() and profile_form.is_valid():
            user = form.save()

            profile = profile_form.save(commit=False)
            profile.user = user

            profile.save()

            username = form.cleaned_data.get('username')
            password = form.cleaned_data.get('password')
            user = authenticate(username=username, password=password)
            login(request, user)
            return redirect('login')

    else:
        form = SignUpForm()
        profile_form = ProfileForm()
    
    context = {'form': form, 'profile_form': profile_form}
    return render(request, 'common/register.html', context)


from django.contrib.auth import authenticate, login

def user_login(request):

    if request.method == 'POST':
        username = request.POST['username']
        password = request.POST['password']

        user = authenticate(request, username=username, password=password)
        

        if user is not None:
            login(request, user)
            return redirect('dashboard')
        else:
            return render(request, 'common/login.html', {'error' : 'username or password is incorrect.'})
    else:
        return render(request, 'common/login.html')

from django import forms
from django.contrib.auth.models import User
from django.contrib.auth.forms import UserCreationForm
from apps.userprofile.models import Profile

class SignUpForm(UserCreationForm):

    first_name = forms.CharField(max_length=30, required=False, help_text='Optional', widget=forms.TextInput(attrs={'placeholder': 'Your first name'}))
    last_name = forms.CharField(max_length=30, required=False, help_text='Optional', widget=forms.TextInput(attrs={'placeholder': 'Your last name'}))
    email = forms.EmailField(max_length=254, required=False, help_text='Enter a valid email address', widget=forms.EmailInput(attrs={'placeholder': 'Your email'}))
    password = forms.CharField(max_length=30, required=False, help_text='Optional', widget=forms.TextInput(attrs={'placeholder': 'Password'}))
    password2 = forms.CharField(max_length=30, required=False, help_text='Optional', widget=forms.TextInput(attrs={'placeholder': 'Repeat your password'}))


    class Meta:
        model = User
        widgets = {
            'username': forms.TextInput(attrs={'placeholder': 'Username'})
        }
        fields = [
            'username', 
            'first_name', 
            'last_name', 
            'email', 
            'password', 
            'password2', 
        ]

class ProfileForm(forms.ModelForm):
   
    class Meta:
        model = Profile
        fields= [ 'student_ID', 'CBNU_PW' ]
        widgets = {
            'student_ID': forms.TextInput(attrs={'placeholder': 'student_ID'}),
            'CBNU_PW': forms.TextInput(attrs={'placeholder': 'CBNU_PW'})
        }

from django.db import models
from django.contrib.auth.models import User
from django.db.models.signals import post_save
from django.dispatch import receiver


class Profile(models.Model):

    user = models.OneToOneField(User, on_delete=models.CASCADE)
    student_ID = models.CharField(max_length=30, blank=True)
    CBNU_PW = models.CharField(max_length=30, blank=True)

    def __str__(self):
        return '%s %s' % (self.user.first_name, self.user.last_name)

@receiver(post_save, sender=User)
def create_user_profile(sender, instance, created, **kwargs):
    if created:
        Profile.objects.create(user=instance)

@receiver(post_save, sender=User)
def save_user_profile(sender, instance, **kwargs):
    instance.profile.save()

from django.contrib import admin
from django.shortcuts import redirect
from django.urls import path
from apps.common.views import DashboardView, user_login, HomeView, update_profile
from django.contrib.auth import views as auth_views
# from apps.common.forms import register


urlpatterns = [
    path('admin/', admin.site.urls),
    path('dashboard/', DashboardView.as_view(), name='dashboard'),
    path('', HomeView.as_view(), name='home'),
    path('register/', update_profile, name='register'),
    
    path('login/', user_login, name='login'),

    path('logout/', auth_views.LogoutView.as_view(
        next_page='dashboard'
        ),
        name='logout'
    ),
]

这是model.py

from django.shortcuts import render, redirect
from django.http import HttpResponse

from django.views.generic import TemplateView, CreateView
from django.contrib.auth.mixins import LoginRequiredMixin

from .forms import SignUpForm, ProfileForm
from django.urls import reverse_lazy
  
from .models import *
from django.contrib import messages


class HomeView(TemplateView):
    template_name = 'common/home.html'

class DashboardView(TemplateView):
    template_name = 'common/dashboard.html'
    login_url = reverse_lazy('login')

def update_profile(request):
    if request.method == 'POST':
        form = SignUpForm(request.POST)
        profile_form = ProfileForm(request.POST)

        if form.is_valid() and profile_form.is_valid():
            user = form.save()

            profile = profile_form.save(commit=False)
            profile.user = user

            profile.save()

            username = form.cleaned_data.get('username')
            password = form.cleaned_data.get('password')
            user = authenticate(username=username, password=password)
            login(request, user)
            return redirect('login')

    else:
        form = SignUpForm()
        profile_form = ProfileForm()
    
    context = {'form': form, 'profile_form': profile_form}
    return render(request, 'common/register.html', context)


from django.contrib.auth import authenticate, login

def user_login(request):

    if request.method == 'POST':
        username = request.POST['username']
        password = request.POST['password']

        user = authenticate(request, username=username, password=password)
        

        if user is not None:
            login(request, user)
            return redirect('dashboard')
        else:
            return render(request, 'common/login.html', {'error' : 'username or password is incorrect.'})
    else:
        return render(request, 'common/login.html')

from django import forms
from django.contrib.auth.models import User
from django.contrib.auth.forms import UserCreationForm
from apps.userprofile.models import Profile

class SignUpForm(UserCreationForm):

    first_name = forms.CharField(max_length=30, required=False, help_text='Optional', widget=forms.TextInput(attrs={'placeholder': 'Your first name'}))
    last_name = forms.CharField(max_length=30, required=False, help_text='Optional', widget=forms.TextInput(attrs={'placeholder': 'Your last name'}))
    email = forms.EmailField(max_length=254, required=False, help_text='Enter a valid email address', widget=forms.EmailInput(attrs={'placeholder': 'Your email'}))
    password = forms.CharField(max_length=30, required=False, help_text='Optional', widget=forms.TextInput(attrs={'placeholder': 'Password'}))
    password2 = forms.CharField(max_length=30, required=False, help_text='Optional', widget=forms.TextInput(attrs={'placeholder': 'Repeat your password'}))


    class Meta:
        model = User
        widgets = {
            'username': forms.TextInput(attrs={'placeholder': 'Username'})
        }
        fields = [
            'username', 
            'first_name', 
            'last_name', 
            'email', 
            'password', 
            'password2', 
        ]

class ProfileForm(forms.ModelForm):
   
    class Meta:
        model = Profile
        fields= [ 'student_ID', 'CBNU_PW' ]
        widgets = {
            'student_ID': forms.TextInput(attrs={'placeholder': 'student_ID'}),
            'CBNU_PW': forms.TextInput(attrs={'placeholder': 'CBNU_PW'})
        }

from django.db import models
from django.contrib.auth.models import User
from django.db.models.signals import post_save
from django.dispatch import receiver


class Profile(models.Model):

    user = models.OneToOneField(User, on_delete=models.CASCADE)
    student_ID = models.CharField(max_length=30, blank=True)
    CBNU_PW = models.CharField(max_length=30, blank=True)

    def __str__(self):
        return '%s %s' % (self.user.first_name, self.user.last_name)

@receiver(post_save, sender=User)
def create_user_profile(sender, instance, created, **kwargs):
    if created:
        Profile.objects.create(user=instance)

@receiver(post_save, sender=User)
def save_user_profile(sender, instance, **kwargs):
    instance.profile.save()

from django.contrib import admin
from django.shortcuts import redirect
from django.urls import path
from apps.common.views import DashboardView, user_login, HomeView, update_profile
from django.contrib.auth import views as auth_views
# from apps.common.forms import register


urlpatterns = [
    path('admin/', admin.site.urls),
    path('dashboard/', DashboardView.as_view(), name='dashboard'),
    path('', HomeView.as_view(), name='home'),
    path('register/', update_profile, name='register'),
    
    path('login/', user_login, name='login'),

    path('logout/', auth_views.LogoutView.as_view(
        next_page='dashboard'
        ),
        name='logout'
    ),
]

这是url.py

from django.shortcuts import render, redirect
from django.http import HttpResponse

from django.views.generic import TemplateView, CreateView
from django.contrib.auth.mixins import LoginRequiredMixin

from .forms import SignUpForm, ProfileForm
from django.urls import reverse_lazy
  
from .models import *
from django.contrib import messages


class HomeView(TemplateView):
    template_name = 'common/home.html'

class DashboardView(TemplateView):
    template_name = 'common/dashboard.html'
    login_url = reverse_lazy('login')

def update_profile(request):
    if request.method == 'POST':
        form = SignUpForm(request.POST)
        profile_form = ProfileForm(request.POST)

        if form.is_valid() and profile_form.is_valid():
            user = form.save()

            profile = profile_form.save(commit=False)
            profile.user = user

            profile.save()

            username = form.cleaned_data.get('username')
            password = form.cleaned_data.get('password')
            user = authenticate(username=username, password=password)
            login(request, user)
            return redirect('login')

    else:
        form = SignUpForm()
        profile_form = ProfileForm()
    
    context = {'form': form, 'profile_form': profile_form}
    return render(request, 'common/register.html', context)


from django.contrib.auth import authenticate, login

def user_login(request):

    if request.method == 'POST':
        username = request.POST['username']
        password = request.POST['password']

        user = authenticate(request, username=username, password=password)
        

        if user is not None:
            login(request, user)
            return redirect('dashboard')
        else:
            return render(request, 'common/login.html', {'error' : 'username or password is incorrect.'})
    else:
        return render(request, 'common/login.html')

from django import forms
from django.contrib.auth.models import User
from django.contrib.auth.forms import UserCreationForm
from apps.userprofile.models import Profile

class SignUpForm(UserCreationForm):

    first_name = forms.CharField(max_length=30, required=False, help_text='Optional', widget=forms.TextInput(attrs={'placeholder': 'Your first name'}))
    last_name = forms.CharField(max_length=30, required=False, help_text='Optional', widget=forms.TextInput(attrs={'placeholder': 'Your last name'}))
    email = forms.EmailField(max_length=254, required=False, help_text='Enter a valid email address', widget=forms.EmailInput(attrs={'placeholder': 'Your email'}))
    password = forms.CharField(max_length=30, required=False, help_text='Optional', widget=forms.TextInput(attrs={'placeholder': 'Password'}))
    password2 = forms.CharField(max_length=30, required=False, help_text='Optional', widget=forms.TextInput(attrs={'placeholder': 'Repeat your password'}))


    class Meta:
        model = User
        widgets = {
            'username': forms.TextInput(attrs={'placeholder': 'Username'})
        }
        fields = [
            'username', 
            'first_name', 
            'last_name', 
            'email', 
            'password', 
            'password2', 
        ]

class ProfileForm(forms.ModelForm):
   
    class Meta:
        model = Profile
        fields= [ 'student_ID', 'CBNU_PW' ]
        widgets = {
            'student_ID': forms.TextInput(attrs={'placeholder': 'student_ID'}),
            'CBNU_PW': forms.TextInput(attrs={'placeholder': 'CBNU_PW'})
        }

from django.db import models
from django.contrib.auth.models import User
from django.db.models.signals import post_save
from django.dispatch import receiver


class Profile(models.Model):

    user = models.OneToOneField(User, on_delete=models.CASCADE)
    student_ID = models.CharField(max_length=30, blank=True)
    CBNU_PW = models.CharField(max_length=30, blank=True)

    def __str__(self):
        return '%s %s' % (self.user.first_name, self.user.last_name)

@receiver(post_save, sender=User)
def create_user_profile(sender, instance, created, **kwargs):
    if created:
        Profile.objects.create(user=instance)

@receiver(post_save, sender=User)
def save_user_profile(sender, instance, **kwargs):
    instance.profile.save()

from django.contrib import admin
from django.shortcuts import redirect
from django.urls import path
from apps.common.views import DashboardView, user_login, HomeView, update_profile
from django.contrib.auth import views as auth_views
# from apps.common.forms import register


urlpatterns = [
    path('admin/', admin.site.urls),
    path('dashboard/', DashboardView.as_view(), name='dashboard'),
    path('', HomeView.as_view(), name='home'),
    path('register/', update_profile, name='register'),
    
    path('login/', user_login, name='login'),

    path('logout/', auth_views.LogoutView.as_view(
        next_page='dashboard'
        ),
        name='logout'
    ),
]