IntegrityError：NOT NULL約束失敗：core_userprofile.user_id

我想通過django做一個簡單的註冊/登錄頁面。我已經使用UserCreationForm並使用模型UserProfile來擴展用戶模型。當我試圖保存註冊的發佈請求時，它給出了完整性錯誤。我是新來的Django，所以簡短的解釋將不勝感激。在此先感謝IntegrityError：NOT NULL約束失敗：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)

來源

2017-07-14 kapil matani

您必須保存user將其分配給用戶之前，個人資料。

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

創建窗體的save()方法user和user_profile是有點混亂。您的方法不再遵守commit標誌，因爲它總是保存用戶和用戶配置文件。將創建配置文件的代碼移動到視圖中的if form.is_valid()塊中會更好。

來源

2017-07-14 10:21:42 Alasdair

通過這樣做，我收到錯誤： /views.py」，第17行，在註冊的用戶名 = user.cleaned_data.get（ '用戶名'） AttributeError的： '用戶' 對象沒有屬性「cleaned_data ' –

這是一個單獨的問題，你應該使用表單來獲得清理過的數據，例如'form.cleaned_data ['username']' – Alasdair

感謝您的幫助，最後一件事我該如何在我的模板中獲取這個user_profile數據。我想用user_profile.department，但無法檢索它 –

IntegrityError：NOT NULL約束失敗：core_userprofile.user_id

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