项目动态表添加索引

app/views/users/_project_attachment.html.erb

@@ -1,5 +1,3 @@
-
-
 <div class="resources mt10">
   <div class="homepagePostBrief">
     <div class="homepagePostPortrait">

db/migrate/20160324074942_add_index_to_forge_activities.rb

@@ -0,0 +1,5 @@
+class AddIndexToForgeActivities < ActiveRecord::Migration
+  def change
+    add_index :forge_activities, [:project_id, :forge_act_id, :created_at]
+  end
+end