如何在Heroku上回滚数据库迁移 [英] How to rollback database migration on Heroku

问题描述

我刚刚部署了一些代码和数据库更改到Heroku，我想将其回滚。我的发行版附加组件能够回滚代码，但不能回滚数据库。我没有备份数据库，所以我无法进行恢复。我试过heroku rake db：rollback，但它没有做任何事情。任何人都知道？

I just deployed some code and database changes to Heroku and I would like to roll it back. I do have the releases add-on and was able to roll back the code but not the database. I didn't backup the database so I can't do a restore. I tried "heroku rake db:rollback" but it didn't do anything. Anyone knows?

推荐答案

您必须运行 heroku rake db：rollback 而将具有 .down 迁移的更新代码部署到Heroku。之后，您可以回滚代码。

You have to run heroku rake db:rollback while the updated code that has the .down migration is deployed to Heroku. After that, you can rollback the code.

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