Fixed: View differences for individual file of a changeset fails if the subversion repository URL doesn't point to the repository root (#1209, #1262, #1275).

git-svn-id: http://redmine.rubyforge.org/svn/trunk@1446 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/change.rb

@@ -19,4 +19,8 @@ class Change < ActiveRecord::Base
   belongs_to :changeset
   
   validates_presence_of :changeset_id, :action, :path
+  
+  def relative_path
+    changeset.repository.relative_path(path)
+  end
 end