Question

我正在创建Django用户注册表单。但是当我提交注册信息时，我无法弄清楚为什么Django会返回此错误。

IntegrityError : column user_id is not unique

并且详细地说，[views.py]的这一部分在错误页面中突出显示。

uasite1 = UserProfile.objects.get_or_create(user=user, name=form.cleaned_data['name'],major=form.cleaned_data['major'],email=form.cleaned_data['email'])

有人能告诉我这个错误发生的原因吗？这是我的代码：

models.py

from django.db import models
from django.contrib.auth.models import User


class UserProfile(models.Model):
    user = models.OneToOneField(User)
    name = models.CharField(max_length=50)
    major = models.CharField(max_length=50)
    email = models.EmailField()

    def __unicode__(self):
        return self.name

forms.py

from django.forms import ModelForm
from uasite1.models import UserProfile
from django import forms
from django.contrib.auth.models import User


class RegistrationForm(ModelForm):
    username = forms.CharField(label=('User Name'))
    password = forms.CharField(label=('Password'), widget=forms.PasswordInput)
    password1 = forms.CharField(label=('Verify Password'), widget=forms.PasswordInput)

    class Meta:
        model = UserProfile
        exclude = ('user',)

    def clean_username(self):
        username = self.cleaned_data['username']
        try:
            User.objects.get(username=username)
        except User.DoesNotExist:
            return username
        raise forms.ValidationError("That username is already taken, please select another.")

    def clean_email(self):
        data = self.cleaned_data['email']
        if "@gmail.com" not in data:
             raise forms.ValidationError("Must include @gmail.com")
        return data

    def clean(self):

        password = self.cleaned_data['password']
        password1 = self.cleaned_data['password1']

        if password and password1 and password != password1:      
            raise forms.ValidationError("The passwords did not match. Please try again.")
        return self.cleaned_data

views.py

from django.shortcuts import render_to_response
from django.http import HttpResponseRedirect,HttpResponse
from uasite1.forms import RegistrationForm
from uasite1.models import UserProfile
from django.template import RequestContext
from django.contrib.auth.models import User
from django.contrib.auth import authenticate


def SecondhandRegistration(request):

    if request.user.is_authenticated():
        return HttpResponseRedirect('/profile/')
    if request.method == 'POST':
        form = RegistrationForm(request.POST)

        if form.is_valid():
            user = User.objects.create_user(username= form.cleaned_data['username'],email = form.cleaned_data['email'], password = form.cleaned_data['password1'])
            user.save()

            uasite1 = UserProfile.objects.get_or_create(user=user, name=form.cleaned_data['name'],major=form.cleaned_data['major'],email=form.cleaned_data['email'])
            uasite1.save()
            return HttpResponseRedirect('/profile/')
        else:
            return render_to_response('register.html',{'form': form}, context_instance=RequestContext(request))
    else:
        form = RegistrationForm()
        context = {'form': form}
        return render_to_response('register.html', context, context_instance=RequestContext(request))

Answer 1

我假设您已清除用户表并再次开始测试注册。在这种情况下，先前的数据将保留在配置文件表中，因此可能会出现此错误。

IntegrityError：列user_id不是唯一的

1 个答案: