在django allauth应用程序中重写SignupForm时，“AttributeError:'非类型'对象没有属性'会话'”

我尝试使用SignupForm覆盖实现django allauth应用程序，我的代码在将数据输入注册表单并保存用户时几乎可以工作，但保存后，我重定向到一个新页面，显示“NoneType”对象没有属性“session”AttributeError。 我怎样才能修好它

url.py views.py 覆盖SignupView，如下所示：

from django.shortcuts import render, HttpResponseRedirect
from .form import AllauthLoginForm, AllauthSignUpForm
from allauth.account.views import SignupView
from django.urls import reverse_lazy

class AllauthSignUpView(SignupView):
    template_name = 'register/signup.html'
    form_class = AllauthSignUpForm
    success_url = reverse_lazy('core:home')  #Redirect to home.html

    def form_valid(self, form):
        # This method is called when valid form data has been POSTed.
        if form.is_valid():
            form.save()
            form.clean()
            return HttpResponseRedirect('core:home')   #Redirect to home.html
        # It should return an HttpResponse.
        return super().form_valid(form)

    def get_context_data(self, **kwargs):
        context = super(AllauthSignUpView, self).get_context_data(**kwargs)
        signUpForm = AllauthSignUpForm(self.request.POST or None)
        context['form'] = signUpForm
        return context

from allauth.account.forms import LoginForm, SignupForm
from django import forms

class AllauthSignUpForm(SignupForm):
    def __init__(self, *args, **kwargs):
        super(AllauthSignUpForm, self).__init__(*args, **kwargs)
        self.fields['username'] = forms.CharField(
            label='',
            widget=forms.TextInput(
                attrs={
                    'class': 'signup_name_inp text-right mb-4 border-top-0 border-right-0 border-left-0',
                    'placeholder': 'نام کاربری',
                    'dir': 'rtl',
                }
            ),
        )
        self.fields['email'] = forms.EmailField(
            label='',
            widget=forms.EmailInput(
                attrs={
                    'class': 'signup_mail_inp text-right mb-4 border-top-0 border-right-0 border-left-0',
                    'placeholder': 'ایمیل (اختیاری)',
                    'dir': 'rtl',
                }
            )
        )
        self.fields['password1'] = forms.CharField(
            label='',
            widget=forms.PasswordInput(
                attrs={
                    'class': 'signup_pass_inp1 text-right mb-4 border-top-0 border-right-0 border-left-0',
                    'placeholder': 'کلمه عبور',
                    'dir': 'rtl',
                }
            )
        )
        self.fields['password2'] = forms.CharField(
            label='',
            widget=forms.PasswordInput(
                attrs={
                    'class': 'signup_pass_inp2 text-right mb-4 border-top-0 border-right-0 border-left-0',
                    'placeholder': 'تکرار کلمه عبور',
                    'dir': 'rtl'
                }
            )
        )
    def save(self, request=None):
        # Ensure you call the parent class's save.
        # .save() returns a User object.
        user = super(AllauthSignUpForm, self).save(request)

        # Add your own processing here.
        print(user.username)
        # You must return the original result.
        return user

form.py 按如下方式覆盖注册表单：

from django.shortcuts import render, HttpResponseRedirect
from .form import AllauthLoginForm, AllauthSignUpForm
from allauth.account.views import SignupView
from django.urls import reverse_lazy

class AllauthSignUpView(SignupView):
    template_name = 'register/signup.html'
    form_class = AllauthSignUpForm
    success_url = reverse_lazy('core:home')  #Redirect to home.html

    def form_valid(self, form):
        # This method is called when valid form data has been POSTed.
        if form.is_valid():
            form.save()
            form.clean()
            return HttpResponseRedirect('core:home')   #Redirect to home.html
        # It should return an HttpResponse.
        return super().form_valid(form)

    def get_context_data(self, **kwargs):
        context = super(AllauthSignUpView, self).get_context_data(**kwargs)
        signUpForm = AllauthSignUpForm(self.request.POST or None)
        context['form'] = signUpForm
        return context

from allauth.account.forms import LoginForm, SignupForm
from django import forms

class AllauthSignUpForm(SignupForm):
    def __init__(self, *args, **kwargs):
        super(AllauthSignUpForm, self).__init__(*args, **kwargs)
        self.fields['username'] = forms.CharField(
            label='',
            widget=forms.TextInput(
                attrs={
                    'class': 'signup_name_inp text-right mb-4 border-top-0 border-right-0 border-left-0',
                    'placeholder': 'نام کاربری',
                    'dir': 'rtl',
                }
            ),
        )
        self.fields['email'] = forms.EmailField(
            label='',
            widget=forms.EmailInput(
                attrs={
                    'class': 'signup_mail_inp text-right mb-4 border-top-0 border-right-0 border-left-0',
                    'placeholder': 'ایمیل (اختیاری)',
                    'dir': 'rtl',
                }
            )
        )
        self.fields['password1'] = forms.CharField(
            label='',
            widget=forms.PasswordInput(
                attrs={
                    'class': 'signup_pass_inp1 text-right mb-4 border-top-0 border-right-0 border-left-0',
                    'placeholder': 'کلمه عبور',
                    'dir': 'rtl',
                }
            )
        )
        self.fields['password2'] = forms.CharField(
            label='',
            widget=forms.PasswordInput(
                attrs={
                    'class': 'signup_pass_inp2 text-right mb-4 border-top-0 border-right-0 border-left-0',
                    'placeholder': 'تکرار کلمه عبور',
                    'dir': 'rtl'
                }
            )
        )
    def save(self, request=None):
        # Ensure you call the parent class's save.
        # .save() returns a User object.
        user = super(AllauthSignUpForm, self).save(request)

        # Add your own processing here.
        print(user.username)
        # You must return the original result.
        return user

signup.html 下面有一些有用的链接：

---

您的代码似乎存在一些潜在问题，但可能导致您所述问题的主要原因是您没有将请求对象传递给views.py文件中的form.save调用

它应该看起来更像这样：

def form_valid(self, form):

    # Don't do this. form_valid() only gets called on a valid form anyway
    # if form.is_valid():

    form.save(self.request)

    # No need to call form.clean() again, especially after already saving the form
    # form.clean()

    return HttpResponseRedirect('core:home')   #Redirect to home.html

因此，总而言之，您似乎并没有在自定义表单中执行任何自定义有效函数，因此您最好完全删除它，而只使用父类中定义的函数。您已经指定了成功url，以便让allauth的表单为您完成工作

def form_valid(self, form):

    # Don't do this. form_valid() only gets called on a valid form anyway
    # if form.is_valid():

    form.save(self.request)

    # No need to call form.clean() again, especially after already saving the form
    # form.clean()

    return HttpResponseRedirect('core:home')   #Redirect to home.html