.

app/models/user_wechat.rb

@@ -17,7 +17,7 @@ class UserWechat < ActiveRecord::Base
     ## 主要是将comment 迁移
     User.delete(old_user) 
 
-    JournalForMessages.where(user_id: old_user).update_all(user_id: u.id)
+    JournalForMessage.where(user_id: old_user).update_all(user_id: u.id)
     Journal.where(user_id: old_user).update_all(user_id: u.id)
     Comment.where(author_id: old_user).update_all(author_id: u.id)
     Message.where(author_id: old_user).update_all(author_id: u.id)