项目动态关联优化（主要优化查询次数）

app/views/projects/_project_activities.html.erb

@@ -48,7 +48,7 @@
 </script>
 
 <% unless forge_acts.empty? %>
-    <% forge_acts.each do |activity| -%>
+    <% forge_acts.includes(:forge_act).each do |activity| -%>
         <script>
             function expand_reply(container, btnid) {
                 var target = $(container);

app/views/users/_project_message.html.erb

@@ -108,7 +108,7 @@
     <% if count > 0 %>
         <div class="" id="reply_div_<%= user_activity_id %>">
           <ul>
-            <% activity.children.reorder("created_on desc").each do |reply| %>
+            <% activity.children.includes(:author).reorder("created_on desc").each do |reply| %>
                 <script type="text/javascript">
                     $(function(){
                         showNormalImage('reply_content_<%= reply.id %>');