Rails 4.1
Rails 4.1
  • 请登录查看
字典 我要纠错

ActiveRecord::IrreversibleMigration

class ActiveRecord::IrreversibleMigration

Parent:
ActiveRecord::MigrationError

Exception that can be raised to stop migrations from going backwards.

© 2004–2016 David Heinemeier Hansson
Licensed under the MIT License.

在线笔记
App下载
App下载

扫描二维码

下载编程狮App

公众号
微信公众号

编程狮公众号

意见反馈
返回顶部