Django how to use login_required with TokenAuthentication

Hi I am trying to use TokenAuthentication from Django rest-framework.

I am able to use this with my views with rest api.

#view_rest.py
class CartList(generics.ListCreateAPIView):
    serializer_class = CartSerializer
    filter_class = CartFilter
    permission_classes = (permissions.IsAuthenticated,)
    def create(self, request, *args, **kwargs):
        request.data['user_id'] = request.user.id
        return generics.ListCreateAPIView.create(self, request, *args, **kwargs)

    def get_queryset(self):
        user = self.request.user.id
        return Cart.objects.filter(user_id_id=user)

But In my custom views it is not authenticating,

#custom_django_views.py
@login_required(login_url='/login/')
def order(request):
    '''Returns page to place order
    '''
    return render(request,"order.html",{})

#this will redirect me to login page.



#settings.py
INSTALLED_APPS = (
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'rest_framework',
    'rest_framework.authtoken',
    'myapp',
)

MIDDLEWARE_CLASSES = (
    'django.contrib.sessions.middleware.SessionMiddleware',
    'site_aggrigator.middleware.SubdomainMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
)
#rest framework
REST_FRAMEWORK = {
    'DEFAULT_FILTER_BACKENDS': (
        'rest_framework.filters.DjangoFilterBackend',
    ),
    'DEFAULT_PERMISSION_CLASSES': (
        'rest_framework.permissions.IsAuthenticated',
        'rest_framework.permissions.DjangoObjectPermissions',
    ),
    'DEFAULT_AUTHENTICATION_CLASSES': (
        'rest_framework.authentication.TokenAuthentication',
        'rest_framework.authentication.BasicAuthentication',
        'rest_framework.authentication.SessionAuthentication',
    )
}

I am not able to understand why for custom_django_views, request is not authenticated? When does authentication happens?