add pool sort option

app/models/pool.rb

@@ -40,6 +40,12 @@ class Pool < ActiveRecord::Base
         q = q.where("creator_id = ?", params[:creator_id].to_i)
       end
       
+      if params[:sort] == "updated_at"
+        q = q.order("updated_at desc")
+      else
+        q = q.order("name")
+      end
+      
       q
     end
   end

app/views/pools/search.html.erb

@@ -4,6 +4,12 @@
       <%= search_field "name_matches", :label => "Name" %>
       <%= search_field "description_matches", :label => "Description" %>
       <%= search_field "creator_name", :label => "Creator" %>
+      
+      <div class="input">
+        <label>Order</label>
+        <%= select "search", "sort", [["Name", "name"], ["Last updated", "updated_at"]] %>
+      </div>
+      
       <%= submit_tag "Search" %>
     <% end %>
   </div>