Slight optimization in User#role_for_project.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@928 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/user.rb

@@ -178,14 +178,16 @@ class User < ActiveRecord::Base
   def role_for_project(project)
     # No role on archived projects
     return nil unless project && project.active?
+    if logged?
       # Find project membership
       membership = memberships.detect {|m| m.project_id == project.id}
       if membership
         membership.role
-    elsif logged?
-      Role.non_member
       else
-      Role.anonymous
+        @role_non_member ||= Role.non_member
+      end
+    else
+      @role_anonymous ||= Role.anonymous
     end
   end