plugins: add method to register manager urls (#7345)

combo/manager/urls.py

@@ -16,9 +16,9 @@
 
 from django.conf.urls import patterns, url, include
 
+from .. import plugins
 from . import views
 
-
 urlpatterns = patterns('combo.views',
         url(r'^$', views.homepage, name='combo-manager-homepage'),
         url(r'^menu.json$', views.menu_json),
@@ -58,3 +58,5 @@ urlpatterns = patterns('combo.views',
         url(r'^assets/delete$', views.asset_delete, name='combo-manager-asset-delete'),
         (r'^ckeditor/', include('ckeditor.urls')),
 )
+
+urlpatterns = plugins.register_plugins_manager_urls(urlpatterns)

combo/plugins.py

@@ -55,6 +55,22 @@ def register_plugins_urls(urlpatterns):
     post_patterns = patterns('', *post_urls)
     return pre_patterns + urlpatterns + post_patterns
 
+def register_plugins_manager_urls(urlpatterns):
+    pre_urls = []
+    post_urls = []
+    for plugin in apps.get_app_configs():
+        if hasattr(plugin, 'get_before_manager_urls'):
+            urls = plugin.get_before_manager_urls()
+            if urls:
+                pre_urls.append(url('^', include(urls)))
+        if hasattr(plugin, 'get_after_manager_urls'):
+            urls = plugin.get_after_manager_urls()
+            if urls:
+                post_urls.append(url('^', include(urls)))
+    pre_patterns = patterns('', *pre_urls)
+    post_patterns = patterns('', *post_urls)
+    return pre_patterns + urlpatterns + post_patterns
+
 def register_plugins_apps(installed_apps):
     installed_apps = tuple(installed_apps)
     for plugin in get_plugins():