对留言在动态里面的显示进行了修改！

app/models/journals_for_message.rb

@@ -24,7 +24,7 @@ class JournalsForMessage < ActiveRecord::Base
   
   def act_as_activity
     if self.jour_type == 'Principal' 
-      unless self.user_id == self.jour.id &&  self.user_id != self.reply_id         
+      unless self.user_id == self.jour.id &&  self.user_id != self.reply_id && self.reply_id !=0        
         self.acts << Activity.new(:user_id => self.user_id)        
       end    
     end