IntegrityError：NOT NULL约束失败：core_userprofile.user_id

我想通过django做一个简单的注册/登录页面。我已经使用UserCreationForm并使用模型UserProfile来扩展用户模型。当我试图保存注册的发布请求时，它给出了完整性错误。我是新来的Django，所以简短的解释将不胜感激。在此先感谢IntegrityError：NOT NULL约束失败：core_userprofile.user_id

forms.py

from django import forms 
from django.contrib.auth.forms import UserCreationForm 
from django.contrib.auth.models import User 
from mysite.core.models import UserProfile 
from django.db import models 

class SignUpForm(UserCreationForm): 
    first_name = forms.CharField(max_length=30, required=False, help_text='Optional.') 
    department = forms.CharField(max_length=30) 
    last_name = forms.CharField(max_length=30, required=False, help_text='Optional.') 
    email = forms.EmailField(max_length=254, help_text='Required. Inform a valid email address.') 

    class Meta: 
     model = User 
     fields = ('username', 'first_name', 'last_name', 'email','password1', 'password2', 'department',) 

    def save(self, commit=True): 
     # Save the provided password in hashed format 
     user = super(SignUpForm, self).save(commit=False) 
     user_profile = UserProfile(user=user, department=self.cleaned_data['department']) 
     user.save() 
     user_profile.save() 
     return user, user_profile

views.py

from django.contrib.auth.decorators import login_required 
from django.contrib.auth import login, authenticate 
from django.shortcuts import render, redirect 
from mysite.core.forms import SignUpForm 

@login_required 
def home(request): 
    return render(request, 'home.html') 

def signup(request): 
    if request.method == 'POST': 
     form = SignUpForm(request.POST) 
     if form.is_valid(): 
      user,user_profile = form.save(commit=False) 
      username = user.cleaned_data.get('username') 
      raw_password = user.cleaned_data.get('password1') 
      user = authenticate(username=username, password=raw_password) 
      login(request, user) 
      return redirect('home') 
    else: 
     form = SignUpForm() 
    return render(request, 'signup.html', {'form': form})

models.py

from django.db import models 
from django.contrib.auth.models import User 
class UserProfile(models.Model): 
    user = models.ForeignKey(User, on_delete=models.CASCADE,unique=True) 
    department = models.CharField(max_length=500, blank=True)

来源

2017-07-14 kapil matani

您必须保存user将其分配给用户之前，个人资料。

user = super(SignUpForm, self).save(commit=False) 
user.save() 
user_profile = UserProfile(user=user, department=self.cleaned_data['department'])

创建窗体的save()方法user和user_profile是有点混乱。您的方法不再遵守commit标志，因为它总是保存用户和用户配置文件。将创建配置文件的代码移动到视图中的if form.is_valid()块中会更好。

来源

2017-07-14 10:21:42 Alasdair

通过这样做，我收到错误： /views.py”，第17行，在注册的用户名 = user.cleaned_data.get（ '用户名'） AttributeError的： '用户' 对象没有属性“cleaned_data ' –

这是一个单独的问题，你应该使用表单来获得清理过的数据，例如'form.cleaned_data ['username']' – Alasdair

感谢您的帮助，最后一件事我该如何在我的模板中获取这个user_profile数据。我想用user_profile.department，但无法检索它 –

IntegrityError：NOT NULL约束失败：core_userprofile.user_id

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