解决项目讨论区置顶功能不能使用问题

app/controllers/boards_controller.rb

@@ -103,7 +103,7 @@ class BoardsController < ApplicationController
           @topic_pages = Paginator.new @topic_count, per_page_option, params['page']
           #现在发布帖子的时候置顶功能已经没有了。所以取消这个置顶排序 #{Message.table_name}.sticky DESC,
           @topics =  @board.topics.
-              reorder("#{Message.table_name}.created_on desc").
+              reorder("#{Message.table_name}.sticky DESC, #{Message.table_name}.created_on desc").
               includes(:last_reply).
               limit(@topic_pages.per_page).
               offset(@topic_pages.offset).

app/views/boards/_project_show.html.erb

@@ -51,9 +51,9 @@
                            :data => {:confirm => l(:text_are_you_sure)},
                            :class => 'talk_edit fr',
                            :style => ' margin-right: 10px;') if topic.destroyable_by?(User.current) %>
-                <%# if topic.sticky? %>
-                  <!--<a href="javascript:void(0)" class="talk_up fr c_red" style="margin-right: 10px;"><%#= l(:label_board_sticky)%></a>-->
-                <%# end %>
+                <% if topic.sticky? %>
+                  <a href="javascript:void(0)" class="talk_up fr c_red" style="margin-right: 10px;"><%= l(:label_board_sticky)%></a>
+                <% end %>
                 <script>
                     //$(function(){if($("#contentmessage<%#=topic.id %>").height()>182){$("#project_show_<%#= topic.id%>").show();}});
                     //解决由于图片加载慢造成div高度不够 以至于展开按钮不显示的bug