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在我的Django項目中,我創建了一個應用程序以獲得有關已註冊用戶的其他信息。所以,我的模式是這樣的:Django - 重複鍵值違反了唯一約束條件
class UserProfile(models.Model):
class Meta:
verbose_name_plural = u'User Profile'
user = models.OneToOneField(User)
birthday = models.DateField(blank=True, null=True)
avatar = models.ImageField(upload_to='media/profile/avatar', blank=True, null=True)
name = models.CharField(blank=True, null=True, max_length=20)
surname = models.CharField(blank=True, null=True, max_length=50)
phone = models.CharField(blank=True, null=True, max_length=12)
def __unicode__(self):
return '%s' % self.user
這裏是我的登記表:
3210這裏是查看我的登記表:
def UserProfileRegistration(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['password'])
user.save()
user_profile = UserProfile(user=user)
user_profile.save()
return HttpResponseRedirect('/profile/')
else:
return render(request, 'profiles/registration.html', {'form':form})
else:
form = RegistrationForm()
context = {'form':form}
return render (request, 'profiles/registration.html', context)
在用戶配置文件我創建的ModelForm哪裏用戶可填寫UserProfile模型中的字段:
class ExtraProfileDataForm(ModelForm):
name = forms.CharField(label=(u'Enter your name'))
surname = forms.CharField(label=(u'Enter your surname'))
phone = forms.CharField(label=(u'Enter your phone'))
birthday = forms.DateField(label=(u'Enter birthday'))
avatar = forms.ImageField(label=(u'Enter avatar'))
class Meta:
model = UserProfile
fields = ('name', 'surname', 'phone', 'birthday', 'avatar')
def __init__(self, *args, **kwargs):
super(ExtraProfileDataForm, self).__init__(*args, **kwargs)
for key in self.fields:
self.fields[key].required = False
這是模型形式的看法:
@login_required
def UserFullDataForm(request):
if request.method == 'POST':
form = ExtraProfileDataForm(request.POST)
if form.is_valid():
profile_user = request.user
user_profile = UserProfile(user=profile_user)
user_profile.name = form.cleaned_data['name']
user_profile.surname = form.cleaned_data['surname']
user_profile.phone = form.cleaned_data['phone']
user_profile.birthday = form.cleaned_data['birthday']
user_profile.avatar = form.cleaned_data['avatar']
user_profile.save()
return HttpResponseRedirect('/profile/')
else:
return render(request, 'profiles/extra_profile.html', {'form':form})
else:
form = ExtraProfileDataForm()
context = {'form':form}
return render (request, 'profiles/extra_profile.html', context)
但是,當我填寫此表,我得到了錯誤: duplicate key value violates unique constraint "profiles_userprofile_user_id_key" DETAIL: Key (user_id)=(23) already exists.
在追蹤我看到這個錯誤在這行user_profile.save()
。據我瞭解,發生這種情況是因爲此腳本使用相同的ID創建新項目,但未更新它。我必須更改我的代碼來更新現有項目,但不創建。謝謝。
非常感謝你的工作! –