django2: Fix 3-tuple ImproperlyConfigured error

https://docs.djangoproject.com/en/2.0/releases/1.9/#passing-a-3-tuple-or-an-app-name-to-include

blueprint django2-support
Change-Id: Ifb9b7501363fe8a3ef417498e0932323240a6dcd

horizon/base.py

@@ -89,6 +89,24 @@ def access_cached(func):
     return inner
 
 
+def _wrapped_include(arg):
+    """Convert the old 3-tuple arg for include() into the new format.
+
+    The argument "arg" should be a tuple with 3 elements:
+    (pattern_list, app_namespace, instance_namespace)
+
+    Prior to Django 2.0, django.urls.conf.include() accepts 3-tuple arg
+    (urlconf, namespace, app_name), but it was droppped in Django 2.0.
+    This function is used to convert the older 3-tuple used in horizon code
+    into the new format where namespace needs to be passed as the second arg.
+
+    For more details, see
+    https://docs.djangoproject.com/en/2.0/releases/1.9/#passing-a-3-tuple-or-an-app-name-to-include
+    """
+    pattern_list, app_namespace, instance_namespace = arg
+    return include((pattern_list, app_namespace), namespace=instance_namespace)
+
+
 class NotRegistered(Exception):
     pass
 
@@ -544,12 +562,13 @@ class Dashboard(Registry, HorizonComponent):
                 continue
             url_slug = panel.slug.replace('.', '/')
             urlpatterns.append(url(r'^%s/' % url_slug,
-                                   include(panel._decorated_urls)))
+                                   _wrapped_include(panel._decorated_urls)))
         # Now the default view, which should come last
         if not default_panel:
             raise NotRegistered('The default panel "%s" is not registered.'
                                 % self.default_panel)
-        urlpatterns.append(url(r'', include(default_panel._decorated_urls)))
+        urlpatterns.append(
+            url(r'', _wrapped_include(default_panel._decorated_urls)))
 
         # Require login if not public.
         if not self.public:
@@ -867,7 +886,7 @@ class Site(Registry, HorizonComponent):
         # Compile the dynamic urlconf.
         for dash in self._registry.values():
             urlpatterns.append(url(r'^%s/' % dash.slug,
-                                   include(dash._decorated_urls)))
+                                   _wrapped_include(dash._decorated_urls)))
 
         # add URL for ngdetails
         views = import_module('horizon.browsers.views')

horizon/site_urls.py

@@ -32,7 +32,7 @@ urlpatterns = [
 # Client-side i18n URLconf.
 urlpatterns.extend([
     url(r'^i18n/js/(?P<packages>\S+?)/$',
-        i18n.javascript_catalog,
+        i18n.JavaScriptCatalog.as_view(),
         name='jsi18n'),
     url(r'^i18n/setlang/$',
         i18n.set_language,

horizon/test/urls.py

@@ -27,11 +27,12 @@ from django.contrib.staticfiles.urls import staticfiles_urlpatterns
 from django.views.generic import TemplateView
 
 import horizon
+import horizon.base
 from horizon.test.jasmine import jasmine
 
 
 urlpatterns = [
-    url(r'', include(horizon.urls)),
+    url(r'', horizon.base._wrapped_include(horizon.urls)),
     url(r"auth/login/", views.login, {'template_name': "auth/login.html"},
         name='login'),
     url(r'auth/', include('django.contrib.auth.urls')),

openstack_dashboard/dashboards/admin/hypervisors/urls.py

@@ -25,5 +25,5 @@ urlpatterns = [
         views.AdminDetailView.as_view(),
         name='detail'),
     url(r'^$', views.AdminIndexView.as_view(), name='index'),
-    url(r'', include(compute_urls, namespace='compute')),
+    url(r'', include((compute_urls, 'compute'))),
 ]

openstack_dashboard/dashboards/admin/networks/urls.py

@@ -53,6 +53,6 @@ urlpatterns = [
     url(r'^(?P<network_id>[^/]+)/ports/(?P<port_id>[^/]+)/update$',
         port_views.UpdateView.as_view(), name='editport'),
 
-    url(r'^subnets/', include(subnet_urls, namespace='subnets')),
-    url(r'^ports/', include(port_urls, namespace='ports')),
+    url(r'^subnets/', include((subnet_urls, 'subnets'))),
+    url(r'^ports/', include((port_urls, 'ports'))),
 ]

openstack_dashboard/dashboards/admin/volume_types/urls.py

@@ -37,7 +37,7 @@ urlpatterns = [
         views.EditQosSpecConsumerView.as_view(),
         name='edit_qos_spec_consumer'),
     url(r'^(?P<type_id>[^/]+)/extras/',
-        include(extras_urls, namespace='extras')),
+        include((extras_urls, 'extras'))),
     url(r'^(?P<volume_type_id>[^/]+)/create_type_encryption/$',
         views.CreateVolumeTypeEncryptionView.as_view(),
         name='create_type_encryption'),
@@ -48,7 +48,7 @@ urlpatterns = [
         views.VolumeTypeEncryptionDetailView.as_view(),
         name='type_encryption_detail'),
     url(r'^qos_specs/',
-        include(qos_specs_urls, namespace='qos_specs')),
+        include((qos_specs_urls, 'qos_specs'))),
     url(r'^(?P<volume_type_id>[^/]+)/edit_access/$',
         views.EditAccessView.as_view(), name='edit_access'),
 ]

openstack_dashboard/dashboards/identity/identity_providers/urls.py

@@ -32,5 +32,5 @@ urlpatterns = [
         views.UpdateView.as_view(), name='update'),
     url(r'^register/$', views.RegisterView.as_view(), name='register'),
     url(r'(?P<identity_provider_id>[^/]+)/protocols/',
-        include(protocol_urls, namespace='protocols')),
+        include((protocol_urls, 'protocols'))),
 ]

openstack_dashboard/dashboards/project/images/urls.py

@@ -34,12 +34,12 @@ if settings.ANGULAR_FEATURES['images_panel']:
     # New angular images
     urlpatterns = [
         url(r'^$', AngularIndexView.as_view(title=title), name='index'),
-        url(r'', include(image_urls, namespace='images')),
-        url(r'', include(snapshot_urls, namespace='snapshots')),
+        url(r'', include((image_urls, 'images'))),
+        url(r'', include((snapshot_urls, 'snapshots'))),
     ]
 else:
     urlpatterns = [
         url(r'^$', views.IndexView.as_view(), name='index'),
-        url(r'', include(image_urls, namespace='images')),
-        url(r'', include(snapshot_urls, namespace='snapshots')),
+        url(r'', include((image_urls, 'images'))),
+        url(r'', include((snapshot_urls, 'snapshots'))),
     ]

openstack_dashboard/dashboards/project/networks/urls.py

@@ -48,6 +48,6 @@ urlpatterns = [
         subnet_views.UpdateView.as_view(), name='editsubnet'),
     url(r'^(?P<network_id>[^/]+)/ports/(?P<port_id>[^/]+)/update$',
         port_views.UpdateView.as_view(), name='editport'),
-    url(r'^subnets/', include(subnet_urls, namespace='subnets')),
-    url(r'^ports/', include(port_urls, namespace='ports')),
+    url(r'^subnets/', include((subnet_urls, 'subnets'))),
+    url(r'^ports/', include((port_urls, 'ports'))),
 ]

openstack_dashboard/test/urls.py

@@ -24,6 +24,8 @@ from django.conf.urls import url
 from django.contrib.staticfiles.urls import staticfiles_urlpatterns
 from django.views import defaults
 
+import horizon.base
+
 from openstack_dashboard.api import rest
 from openstack_dashboard.test.jasmine import jasmine
 from openstack_dashboard import views
@@ -35,7 +37,7 @@ urlpatterns = [
     url(r'^auth/', include('openstack_auth.urls')),
     url(r'^api/', include(rest.urls)),
     url(r'^jasmine/(.*?)$', jasmine.dispatcher),
-    url(r'', include(horizon.urls)),
+    url(r'', horizon.base._wrapped_include(horizon.urls)),
 ]
 
 # Development static app and project media serving using the staticfiles app.

openstack_dashboard/urls.py

@@ -28,6 +28,7 @@ from django.contrib.staticfiles.urls import staticfiles_urlpatterns
 from django.views import defaults
 
 import horizon
+import horizon.base
 
 from openstack_dashboard.api import rest
 from openstack_dashboard import views
@@ -36,7 +37,7 @@ urlpatterns = [
     url(r'^$', views.splash, name='splash'),
     url(r'^api/', include(rest.urls)),
     url(r'^header/', views.ExtensibleHeaderView.as_view()),
-    url(r'', include(horizon.urls)),
+    url(r'', horizon.base._wrapped_include(horizon.urls)),
 ]
 
 for u in getattr(settings, 'AUTHENTICATION_URLS', ['openstack_auth.urls']):