Django 登录表单不适用于自定义用户模型

Question

我正在使用 Django 1.8 并实现了自定义用户模型。用户注册部分功能 100%；我可以提交一个表单并验证是否创建了用户。但是我在用户登录过程中苦苦挣扎。

登录表单呈现得很好，但是当我输入我已验证的用户名和密码时（通过 Django 管理员验证），我进入 HttpResponse('Form is invalid') 留言。

我已经卡在这上面一两天了。非常感谢任何建议！

accounts/views.py

from django.views.generic import FormView
from django.contrib.auth import authenticate, login
from django.shortcuts import render

from accounts.forms import CustomUserCreationForm, CustomUserLoginForm
from accounts.models import CustomUser


class CustomUserCreateView(FormView):
    form_class = CustomUserCreationForm
    template_name = 'registration/registration_form.html'
    success_url = '/connections/'

    def form_valid(self, form):
        form.save()
        return super(CustomUserCreateView, self).form_valid(form)


class CustomUserLoginView(FormView):
    form_class = CustomUserLoginForm
    template_name = 'registration/login.html'
    success_url = '/success/'

    def get(self, request, *args, **kwargs):
        form = self.form_class(initial=self.initial)
        return render(request, self.template_name, {'form':form})

    def post(self, request, *args, **kwargs):
        form = self.form_class(request.POST)
        if form.is_valid():
            user = authenticate(
                username=form.cleaned_data['email'],
                password=form.cleaned_data['password'],
                )
            if user is not None:
                if user.is_active:
                    login(request, user)
                    return HttpResponseRedirect(success_url)
                else:
                    return HttpResponse('User is not active') # TEMP
            else:
                return HttpResponse('User does not exist') # TEMP
        else:
            return HttpResponse('Form is invalid') # TEMP

accounts/forms.py

from django import forms
from django.contrib.auth.forms import UserCreationForm, AuthenticationForm

from .models import CustomUser


class CustomUserLoginForm(AuthenticationForm):
    model = CustomUser
    # TODO - need to provide error message when no user is found


class CustomUserCreationForm(UserCreationForm):
    password1 = forms.CharField(label='Password', widget=forms.PasswordInput)
    password2 = forms.CharField(label='Confirm Password', widget=forms.PasswordInput)

    class Meta(UserCreationForm.Meta):
        model = CustomUser
        fields = ('first_name', 'last_name', 'email', 'mobile_number')

    def clean_password2(self):
        # Check that the two password entries match
        password1 = self.cleaned_data.get('password1')
        password2 = self.cleaned_data.get('password2')

        if password1 and password2 and password1 != password2:
            raise forms.ValidationError('Passwords do not match!')
        return password2

    def save(self, commit=True):
        # Save the provided password in hashed format
        user = super(UserCreationForm, self).save(commit=False)
        user.set_password(self.cleaned_data['password1'])
        if commit:
            user.save()
        return user

Answer 1

该错误意味着您在 "CustomUserLoginView" 中的 "post" 方法没有 returning HttpResponse，因为您几乎没有 "pass" 而不是 return正确的反应。这是因为在少数情况下您什么都不做，然后到达方法的底部，默认情况下 python functions/methods return None。在一种情况下（当 user.is_active 时），您只 returning HttpResponse。您应该看到您正在传递 "if-else" 的哪个分支。在所有情况下（总是），您必须 return HttpResponse。

玩得开心！

Answer 2

This answer 最终让我找到了解决方法。

在 'post' 方法中，我需要更改行：

form = self.form_class(request.POST)

至：

form = self.form_class(data=request.POST)

最后，我的 CustomUserLoginView 如下所示：

class CustomUserLoginView(FormView):
    form_class = AuthenticationForm
    template_name = 'registration/login.html'
    success_url = '/connections/'

    def get(self, request, *args, **kwargs):
        form = self.form_class(initial=self.initial)
        return render(request, self.template_name, {'form':form})

    def post(self, request, *args, **kwargs):
        form = self.form_class(data=request.POST)
        if form.is_valid():
            user = authenticate(
                username=form.cleaned_data['username'],
                password=form.cleaned_data['password'],
                )
            if user is not None:
                if user.is_active:
                    login(request, user)
                    return HttpResponseRedirect(self.success_url)
                else:
                    return HttpResponse('User is not active') # TEMP
            else:
                return HttpResponse('User does not exist') # TEMP
        else:
            return HttpResponse('Form is not valid') # TEMP

Django 登录表单不适用于自定义用户模型

Django login form not working for custom user model

python

django

django-registration