课程删除帖子报500

app/models/message.rb

@@ -53,7 +53,7 @@ class Message < ActiveRecord::Base
   has_many :tidings, :as => :container , :dependent => :destroy
 
   belongs_to :reply, :class_name => 'Message', :foreign_key => 'reply_id'
-  has_one :message_detail, :dependent => :destroy
+  #has_one :message_detail, :dependent => :destroy
 
   #转发表
   has_many :forwards, :as => :from, :dependent => :destroy