+def get_comment_owner_url(**route):
+ """Given a view route, returns the owner_url route parameter for generating
+ comment URLs.
+ """
+ if 'owner_url' in route:
+ # We're already in a comments page. Reuse the existing owner URL
+ return route['owner_url']
+
+ # url() returns URLs beginning with a slash. We just need to strip it.
+ return url(**route)[1:]