Django " AttributeError: 'function' object has no attribute 'as_view' " - django

Question

I am trying to make an index page with class based views that will have menu bar and with that menu bar it will redirect to new pages and takes forms as post requests. But whatever i do i always get the same error.
Here is the error ;
Exception in thread django-main-thread:
Traceback (most recent call last):
File "C:\Users\berat.berkol\anaconda3\lib\threading.py", line 926, in _bootstrap_inner
self.run()
File "C:\Users\berat.berkol\anaconda3\lib\threading.py", line 870, in run
self._target(*self._args, **self._kwargs)
File "C:\Users\berat.berkol\anaconda3\lib\site-packages\django\utils\autoreload.py", line 53, in wrapper
fn(*args, **kwargs)
File "C:\Users\berat.berkol\anaconda3\lib\site-packages\django\core\management\commands\runserver.py", line 118, in inner_run
self.check(display_num_errors=True)
File "C:\Users\berat.berkol\anaconda3\lib\site-packages\django\core\management\base.py", line 396, in check
databases=databases,
File "C:\Users\berat.berkol\anaconda3\lib\site-packages\django\core\checks\registry.py", line 70, in run_checks
new_errors = check(app_configs=app_configs, databases=databases)
File "C:\Users\berat.berkol\anaconda3\lib\site-packages\django\core\checks\urls.py", line 13, in check_url_config
return check_resolver(resolver)
File "C:\Users\berat.berkol\anaconda3\lib\site-packages\django\core\checks\urls.py", line 23, in check_resolver
return check_method()
File "C:\Users\berat.berkol\anaconda3\lib\site-packages\django\urls\resolvers.py", line 408, in check
for pattern in self.url_patterns:
File "C:\Users\berat.berkol\anaconda3\lib\site-packages\django\utils\functional.py", line 48, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "C:\Users\berat.berkol\anaconda3\lib\site-packages\django\urls\resolvers.py", line 589, in url_patterns
patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
File "C:\Users\berat.berkol\anaconda3\lib\site-packages\django\utils\functional.py", line 48, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "C:\Users\berat.berkol\anaconda3\lib\site-packages\django\urls\resolvers.py", line 582, in urlconf_module
return import_module(self.urlconf_name)
File "C:\Users\berat.berkol\anaconda3\lib\importlib\__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
File "<frozen importlib._bootstrap>", line 983, in _find_and_load
File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 677, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 728, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "C:\Users\berat.berkol\SystemConsole\SystemConsole\urls.py", line 25, in <module>
path('', UserUpdateView.as_view(), name='home'),
AttributeError: 'function' object has no attribute 'as_view'
And my project's urls.py ;
from django.contrib import admin
from django.urls import path
from django.conf.urls import include
from userupdate.views import UserUpdateView
app_name='userupdate'
urlpatterns = [
path('admin/', admin.site.urls),
path('login/',include('django.contrib.auth.urls')),
path('', UserUpdateView.as_view(), name='home'),
]
and my views.py ;
from django.shortcuts import render
from datetime import timedelta
from django.utils import timezone
from django.views.generic import TemplateView
from django.views.decorators.csrf import csrf_protect
from django.utils.decorators import method_decorator
from django.urls import reverse
import requests
from userupdate.forms import UserPassForm
from userupdate.forms import LoginForm
from django.views.generic import View
from django.contrib.auth.views import LoginView
from django.contrib.auth.mixins import LoginRequiredMixin
#csrf_protect
class UserUpdateView(LoginRequiredMixin,View):
emplate_name='home.html'
def get(self, request, *args, **kwargs):
return render(request,'home.html')
##method_decorator(login_required)
def dispatch(self, request, *args, **kwargs):
return super(UserUpdateView, self).dispatch(self, request, *args, **kwargs)
#csrf_protect
class LoginUser(LoginView):
template_name = 'home.html' # your template
from_class = LoginForm() # your form
def get_success_url(self):
'''Here the part where you can implement your login logic'''
now = timezone.now()
# Get current day date object
# like: 12/02/2019 00:00:00
today = now.replace(minute=0).replace(second=0).replace(microsecond=0)
# Get the client from the user object
client = self.request.user.cli
# Get all the user today's logins and count them
client_logins = models.ClientLogins.objects.filter(
client=client,
date__gte=today,
date__lte=today + timedelta(days=1)
).count()
if client_logins < 1: # Or: if not client_logins:
# create a login tracker record
models.ClientLogins.objects.create(
client=client,
date=now # Store the date where the user logged in the website
)
return reverse_lazy('home')
# Or redirect to: settings.LOGIN_REDIRECT_URL
request.session.get_expire_at_browser_close()
return super().get_success_url()
#csrf_protect
class passResetView(View):
def get(self,request):
form=UserUpdateForm()
return render('basarili')
def post(self,request):
passResetuser=self.model.objects.get(pk=2)
form=UserUpdateForm(request.POST,instance=passResetuser)
if form.is_valid():
username=form.cleaned_data('username')
password=form.cleaned_data('password')
number=form.cleaned_data('number')
message=form.cleaned_data('message')
context={'form':form}
return render(request,'home.html',context)
I don't know if it's required but here is my app's urls.py ;
from django.urls import path, re_path
from django.contrib.auth.views import LoginView
from userupdate.views import HomeView
from django.contrib.auth import views as auth_views
app_name='userupdate'
urlpatterns = [
path('', views.UserUpdateView.as_view(template_name='home.html'), name='home'),
path('login/',
LoginView.as_view(
template_name='login.html'),
name="login"),
#path('passResetView',views.passResetView.as_view(template_name="home.html"),name='passResetView'),
path('passreset/',
passResetView.as_view(
template_name='passreset.html'),
name="PasswordReset"),
]
I haven't configured the form pages yet so ignore them for now.
I will build them with the FormView.
By the way I tried the TemplateView also but i didn't help its makes the same error.

Answer 1

You can't use #csrf_protect on a class-based view, or at least not directly. This decorator will return a function, and that function of course has no .as_view() method.
You can work with the #method_decorator [Django-doc], which will decorate the class:
from django.utils.decorators import method_decorator
from django.views.decorators.csrf import csrf_protect
#method_decorator(csrf_exempt, name='dispatch')
class UserUpdateView(LoginRequiredMixin,View):
template_name = 'home.html'
# …
That being said, it is often not a good idea to make a CSRF exempt, since that makes your view vulnerable to Cross-Site Request Forgery [wiki].