ValueError:查看帐户。意见。登录未返回HttpResponse对象。它没有返回任何结果

Question

有人知道为什么我的代码没有在“if user not None:”行上运行吗？

回溯

1.

2.

内部服务器错误： /login/Traceback（最近一次调用最后一次）：文件"C：\用户\hanya\AppData\本地\程序\Python\Python37\lib\site-包\django\core\处理程序\exception.py"，第34行，在内部响应=get_response（请求）文件"C：\用户\hanya\AppData\本地\程序\Python\Python37\lib\site-包\django\core\处理程序\base.py"，第137行，在_get_response中返回无而不是." % ( callback.module，view_name）值错误：视图ccount.views.登录没有返回HttpSolutions对象。它返回无。[18/Jan/2019 21:59:25]"POST /login/HTTP/1.1"500 56866

意见。派克

class Login(View):
    form_class = AccountForm
    template = 'login.html'

    def get(self, request):
        form=self.form_class(None)
        return render(request, self.template, {'form':form})

    def post (self, request):
        if request.method=="POST":
            form = self.form_class(request.POST)
            if form.is_valid():
                print('1')
                username = form.cleaned_data.get("username")
                password = form.cleaned_data.get("password")
                print('2')
                user = authenticate(username=username, password=password)
                if user is not None:
                    print('3')
                    if user.is_active:
                        login(request, user)
                        return redirect('home.html')
                    else:
                        return HttpResponse("Inactive user.")
            else:
                return render(request, 'login.html')

urls.py

urlpatterns = [
    ...
    path('emailverification/passwordchange/',  views.PasswordChange, name='passwordchange'),
]

样板

{%extends 'base_form.html'%}

{%block content%}
<div class=container-fluid>
  <form method="POST">
    {%csrf_token%}
    <label for="username">username</label>
      <input type="text" placeholder="username" name="login" required><br>
    <label for="password">password</label>
      <input type="password" placeholder="password" name="login" required><br>
    <button type="submit" class="btn btn-success">Submit</button>
  </form>


  <div class="container signin">
    <p>Do not have an account? <a href="{% url 'registration'%}">register here</a>.</p>
    <p>Forgot password?<a href="{%url 'passwordreset'%}">retrieve password</a></p>
    <p>Improve your password security.<a href="{%url 'passwordchange'%}">change password</a></p>
  </div>
<div>
{%endblock content%}

Answer 1

添加代码

def clean(self, *args, **kwargs):
    username=self.cleaned_data.get("username")
    password=self.cleaned_data.get("password")
    user=authenticate(username=username, password=password)
    if not user:
        raise forms.ValidationError("This user does not exist")
    if not user.check_password(password):
        raise forms.ValidationError("Incorrect Password")
    if not user.is_active:
        raise forms.ValidationError("This user is no longer active.")
    return super(LoginForm, self).clean(*args, **kwargs)

Answer 2

您传递了一个模板名“home”。将html链接到重定向函数。您应该传递一个URL。除了url，您还可以为参数选择其他一些选项。见医生