Expose Django's LOGOUT_REDIRECT_URL setting

Signed-off-by: Roberto Rosario <roberto.rosario.gonzalez@gmail.com>

HISTORY.rst

@@ -89,6 +89,7 @@
 * Add MERCs 5 and 6.
 * Update authentication function views to use Django's new class
   based authentication views.
+* Expose Django's LOGOUT_REDIRECT_URL setting.
 
 3.1.11 (2019-04-XX)
 ===================

docs/releases/3.2.rst

@@ -121,6 +121,7 @@ Other changes
 * Add MERCs 5 and 6. 
 * Update authentication function views to use Django's new class
   based authentication views.
+* Expose Django's LOGOUT_REDIRECT_URL setting.
 
 Removals
 --------

mayan/apps/common/settings.py

@@ -296,6 +296,19 @@ setting_django_login_redirect_url = namespace.add_setting(
         'have to define the URL in two places (settings and URLconf).'
     ),
 )
+setting_django_logout_redirect_url = namespace.add_setting(
+    global_name='LOGOUT_REDIRECT_URL',
+    default=settings.LOGOUT_REDIRECT_URL,
+    help_text=_(
+        'Default: None. The URL where requests are redirected after a user '
+        'logs out using LogoutView (if the view doesn\'t get a next_page '
+        'argument). If None, no redirect will be performed and the logout '
+        'view will be rendered. This setting also accepts named URL '
+        'patterns which can be used to reduce configuration duplication '
+        'since you don\'t have to define the URL in two places (settings '
+        'and URLconf).'
+    )
+)
 setting_django_internal_ips = namespace.add_setting(
     global_name='INTERNAL_IPS',
     default=settings.INTERNAL_IPS,

mayan/settings/base.py

@@ -253,6 +253,9 @@ TEST_RUNNER = 'mayan.apps.common.tests.runner.MayanTestRunner'
 
 LOGIN_URL = env('MAYAN_LOGIN_URL', default='authentication:login_view')
 LOGIN_REDIRECT_URL = env('MAYAN_LOGIN_REDIRECT_URL', default='common:root')
+LOGOUT_REDIRECT_URL = env(
+    'MAYAN_LOGOUT_REDIRECT_URL', default='authentication:login_view'
+)
 INTERNAL_IPS = ('127.0.0.1',)
 
 # ---------- Django REST framework -----------