Django get_or_create未在模型中創建新記錄

Question

我在使用get_or_create語句時遇到問題。 如果有一個記錄但沒有創建記錄，它將獲取記錄。 我所有的模型字段都有默認值。

我的view.py

    from django.contrib.auth.decorators import login_required
from django.shortcuts import render, HttpResponseRedirect, Http404, get_object_or_404
from django.contrib.auth import logout, login, authenticate
from django.contrib.auth.models import User
from django.contrib import messages
from django.core.urlresolvers import reverse
from django.utils.safestring import mark_safe

# Create your views here.
from .models import UserProfile



@login_required
def profile_view(request):
    user = request.user
    account = request.user
    profile = UserProfile.objects.get_or_create(UserProfile, user=user)
    context = {'profile': profile, 'account': account, }
    template = 'profiles/profile.html'  
    return render(request, template, context)

我得到的回溯是：

ypeError at /profiles/
get_or_create() takes exactly 1 argument (3 given)
Request Method: GET
Request URL:    http://127.0.0.1:8000/profiles/
Django Version: 1.6.5
Exception Type: TypeError
Exception Value:    
get_or_create() takes exactly 1 argument (3 given)

我正在處理的models.py是：

class UserProfile(models.Model):
user = models.OneToOneField(settings.AUTH_USER_MODEL)
city = models.CharField(max_length=120, default="Add your city")
country = models.CharField(max_length=120, default="Add your country") #(max_length=2, choices=[(x[0], x[3]) for x in country.COUNTRIES])
zipcode = models.CharField(max_length=8, default="Add your zip/postcode")
birthyear = models.IntegerField(max_length=4, default="Add your birthyear")
timestamp = models.DateTimeField(auto_now_add=True, auto_now=False)
updated = models.DateTimeField(auto_now_add=False, auto_now=True)

def __unicode__(self):
    return str(self.user.username)

class Meta:
    ordering = ['-updated', '-timestamp']

Answer 1

您無需將模型類傳遞給方法。

profile = UserProfile.objects.get_or_create(UserProfile, user=user)

應該

profile, created = UserProfile.objects.get_or_create(user=user)