Question

这是我注册后自动登录的代码。

def authenticationRegister(request):
    if request.method == 'POST':
        registrationForm = MyRegistrationForm(request.POST)
        if registrationForm.is_valid():
            user_present = registrationForm.save()
            request.session['RegistrationForm_error'] = None
            username = request.POST.get('username', '')
            password = request.POST.get('password', '')
            user = auth.authenticate(username=username,password=password)
            if user is not None:
                auth.login(request,user)
                request.session['username'] = user.email
                request.session['id'] = user.id
            return HttpResponseRedirect('/home/')
        else:
            request.session['RegistrationForm_error'] = registrationForm.errors
            return HttpResponseRedirect('/authenticate/')
    return HttpResponseRedirect('/authenticate/')

此代码的问题是auth.authenticate（）返回None。当我将user.login（）语句放在外面时，如果出现匿名用户错误。表单将保存在db中。但是auth.authenticate（）返回None。

MyRegistrationForm的代码

class MyRegistrationForm(UserCreationForm):
    error_messages = {
    'duplicate_email': _("A user with that email already exists."),
    'password_mismatch' : _("The two password fields didn't match."),
    }

    username = forms.CharField(
        widget = forms.TextInput(attrs={'placeholder':'Enter Username','class': 'form-control input', 'size': '20'}),
        help_text = _("Required. 30 characters or fewer. Letters, digits and @/./+/-/_ only."))
    email = forms.EmailField(
        widget = forms.TextInput(attrs={'placeholder': 'Email', 'class': 'form-control input', 'size': '20'}))
    password1 = forms.CharField(
        widget = forms.PasswordInput(attrs={'placeholder': 'Password','class': 'form-control input', 'size': '20'}))
    password2= forms.CharField(
        widget = forms.PasswordInput(attrs={'placeholder': 'Confirm Password','class': 'form-control input', 'size': '20'}),
        help_text = _("Enter the same password as above, for verification."))

    class Meta:
        model = get_user_model()
        fields = ('username', 'email', 'password1', 'password2')

    def clean_email(self):
        email = self.cleaned_data["email"]
        try:
            get_user_model()._default_manager.get(email=email)
        except get_user_model().DoesNotExist:
            return email
        raise forms.ValidationError(
            self.error_messages['duplicate_email'],
            code = 'duplicate_email',)

    def save(self, commit=True):
        user = super(MyRegistrationForm, self).save(commit=False)
        user.set_password(self.cleaned_data["password1"])
        if commit:
            user.save()
        return user

    def clean_password2(self):
        password1 = self.cleaned_data.get("password1")
        password2 = self.cleaned_data.get("password2")
        if password1 and password2 and password1 != password2:
            raise forms.ValidationError(self.error_messages['password_mismatch'], code = 'password_mismatch', )
        return password2

Answer 1

您的POST数据中没有密钥password，因为您的密码字段为password1和password2。所以你的dict get只是返回默认值，即空字符串。

正如Alasdair在评论中所说，无论如何你都应该使用clean_data表格。而且，如果表单有效，您只能达到这一点，您知道值存在，因此您不应该使用get默认值：只使用标准的dict访问。

        username = form.cleaned_data['username']
        password = form.cleaned_data['password1']

Django auth.authenticate（）在自动登录中返回NONE

1 个答案: