微信用户合并修改

app/models/user_wechat.rb

@@ -22,5 +22,6 @@ class UserWechat < ActiveRecord::Base
     Comment.where(author_id: old_user).update_all(author_id: u.id)
     Message.where(author_id: old_user).update_all(author_id: u.id)
     BlogComment.where(author_id: old_user).update_all(author_id: u.id)
+    UserActivity.where(user_id: old_user).update_all(user_id: u.id)
   end
 end