Question

我试图在views.py中定义一个继承泛型视图的类。代码如下。在运行服务器上我得到错误 class UserFormView（View）： NameError：name＆＃39; View＆＃39;未定义

虽然我已导入通用。请让我知道原因。

from django.views import generic
from django.utils import timezone
from django.shortcuts import render, get_object_or_404,render_to_response,redirect
from django.http import HttpResponseRedirect
from django.contrib import auth
from django.contrib.auth import authenticate,login
from django.core.context_processors import csrf
from .forms import UserForm

# Create your views here.

def home(request):
    return render(request, 'fosssite/home.html')
def login(request):
    c={}
    c.update(csrf(request))
    return render_to_response('fosssite/login.html',c)

class UserFormView(View):
    form_class=UserForm
    template_name='fosssite/signup.html'

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


        #validate by forms of django
    def post(self,request):
        form=self.form_class(request.POST)

        if form.is_valid():
            # not saving to database only creating object
            user=form.save(commit=False)
            #normalized data
            username=form.cleaned_data['username']
            password=form.cleaned_data['password']
            #not as plain data
            user.set_password(password)
            user.save() #saved to database


def auth_view(request):
    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)
        return HttpResponseRedirect('/loggedin')#url in brackets
    else:
        return HttpResponseRedirect('/invalid')

def loggedin(request):
    return render_to_response('fosssite/loggedin.html',{'fullname':request.user.username})

def logout(request):
    auth.logout(request)
    return render_to_response('fosssite/logout.html')

def invalid_login(request):
    return render_to_response('fosssite/invalid_login.html')
`

Answer 1

View名称需要导入。添加以下import语句：

from django.views.generic import View

或者使用

中已导入的generic模块

class UserFormView(generic.View)
#                     ^

Answer 2

您需要明确导入View：

from django.views.generic import View

或将其称为generic.View：

class UserFormView(generic.View):
    # ...

Answer 3

在urls.py中

 from my_app import views

例如代码：

<强> urls.py

from django.conf.urls import url
from django.contrib import admin
from pro1 import views


urlpatterns = [
     url(r'^$', views.home, name='home'),
    url(r'^admin/', admin.site.urls),
]

<强> views.py

from django.shortcuts import render

def home(request):
    template="home.html"
    context={}
    return render(request,template,context)

猜它会解决问题。

NameError：name＆＃39; View＆＃39;没有在views.py中定义

3 个答案: