Adding extra_context in Django logout built-in view

In django/contrib/auth/views.py there is the definition of the logout view :

def logout(request, next_page=None,
       template_name='registration/logged_out.html',
       redirect_field_name=REDIRECT_FIELD_NAME,
       current_app=None, extra_context=None):

I would like to add extra_context to get rid of the 'Logged out' title that appear when I log off

so I'm trying this in my url confs :

(r'^accounts/logout/$', logout(extra_context={'title':'s开发者_如何学JAVAomething else'}) ),

but then I get this error : logout() takes at least 1 non-keyword argument (0 given) what I'm doing wrong? ps: when I do

(r'^accounts/logout/$', logout ),

it works, but then I get the 'Logged out' text...

Thanks, Fred

When you write logout(extra_context={'title':'something else'}), you're actually calling logout right there in the URLconf, which won't work. Any URLconf tuple can have an optional third element, which should be a dictionary of extra keyword arguments to pass to the view function.

(r'^accounts/logout/$', logout, {'extra_context':{'title':'something else'}}),

Alternatively, you could write your own view which calls logout passing in whatever arguments you want -- that's typically how you would "extend" function-based generic views in more complicated cases.

Adding my findings for django 2.0 as the previous answer on this thread no longer works for the most recent django version.

With 2.0, the proper way of adding a URL to your urls.py file is by using path():

from django.urls import path
from django.contrib.auth import views as auth_views

path('accounts/logout/', auth_views.LogoutView.as_view(
  extra_context={'foo':'bar'}
)),

The code snippet to highlight here is the .as_view() function. Django 2.0 implements auth views as classes. You can read more about this in the Authentication Views documentation

You then "convert" the class to a view using `.as_view() and you are able to pass in any class attributes defined in the source code as named parameters.

Passing in extra_context (which defaults to None) automatically exposes these context variables to your templates.

You can access the source code for LogoutView by following this python path: django.contrib.auth.views

Here you can see the other class attributes you can pass into LogoutView and the other auth view classes.

I had a similar problem with titles and generic views in django 1.11 (though the problem was mostly that I didn't switch docs version from 2.0). I wanted to pass title via extra_context to the view inherited from CreateView, and discovered that django's generic view had no such attribute. So, here are my crutches:

1. Create custom mixin (hope that's more or less what ContextMixin in 2.0 does):

   class ExtraContextMixin():
       extra_context = {}
   
       def get_context_data(self, **kwargs):
           context = super().get_context_data(**kwargs)
           context.update(self.extra_context)
   
           return context
   

2. Add mixin to view's ancestors (that's all code I had to change):

   class CustomView(ExtraContextMixin, CreateView):
   

3. Pass extra_context from url:

   url(r'^custom-view/$', views.CustomView.as_view(extra_context={'title': 'just any'}), name='custom-view')
   

Unfortunately, I have no idea whether such solution is acceptable (no need since 2.0, obviously), but at least it's working.