add link to mod+ topics

app/models/forum_topic.rb

@@ -71,6 +71,10 @@ class ForumTopic < ActiveRecord::Base
       q = permitted
       return q if params.blank?
 
+      if params[:mod_only].present?
+        q = q.where("min_level >= ?", MIN_LEVELS[:Moderator])
+      end
+
       if params[:title_matches].present?
         q = q.title_matches(params[:title_matches])
       end

app/views/forum_topics/index.html.erb

@@ -4,7 +4,11 @@
 
     <p>
       Categories:
-      <%= link_to "All", forum_topics_path %>, <%= ForumTopic::CATEGORIES.map {|id, name| link_to_unless_current(name, forum_topics_path(:search => {:category_id => id}))}.join(", ").html_safe %>
+      <%= link_to "All", forum_topics_path %>, 
+      <% if CurrentUser.is_moderator? %>
+        <%= link_to "Mod+", forum_topics_path(:search => {:mod_only => true}) %>,
+      <% end %>
+      <%= ForumTopic::CATEGORIES.map {|id, name| link_to_unless_current(name, forum_topics_path(:search => {:category_id => id}))}.join(", ").html_safe %>
     </p>
 
     <%= render "listing", :forum_topics => @forum_topics %>