添加注释

app/models/user.rb

@@ -264,6 +264,7 @@ class User < Principal
     if OnclickTime.where("user_id =?", User.current).first.nil?
       message_new_time = OnclickTime.new
       message_new_time.user_id = User.current.id
+      # 第一次初始化点击铃铛时间
       message_new_time.onclick_time = User.current.last_login_on.nil? ? Time.now : User.current.last_login_on
       message_new_time.save
     end