rake db:migrate 似乎在生产中不起作用 [英] rake db:migrate doesn't seem to work in production

问题描述

我的应用有两个实例:一个用于开发，一个用于生产.我的开发数据库名为 snip_development，我的生产数据库名为 snip.

I have two instances of my app: one for development, one for production. My development database is called snip_development and my production database is called snip.

我一直在我的开发环境中进行迁移，并且一切顺利.我最近创建了我的应用程序的生产实例，但 rake db:migrate 似乎没有任何效果.在我运行 rake db:migrate 并登录到我的数据库服务器后，我可以看到 snip_development 拥有我期望的所有表，但 snip根本没有任何桌子.

I've been doing migrations all along in my development environment and it's been going just fine. I recently created a production instance of my app but rake db:migrate doesn't seem to have any effect. After I run rake db:migrate and log into my database server, I can see that snip_development has all the tables I expect it to but snip doesn't have any tables at all.

我怀疑问题在于 rake db:migrate 在 snip_development 而不是 snip 上运行，这就是为什么我没有看到任何东西发生.

I suspect the problem is that rake db:migrate is running on snip_development instead of snip and that's why I'm not seeing anything happen.

如何让我的迁移在我的生产数据库上工作?

How do I get my migrations to work on my production database?

推荐答案

有时我会忘记 Google.答案是这样的:

Sometimes I forget about Google. The answer is this:

rake db:migrate RAILS_ENV=production

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