Ruby-on-rails 在 Rails 3 中设置环境变量 (Devise + Omniauth)
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/11648620/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Setting Environment Variables in Rails 3 (Devise + Omniauth)
提问by neon
I've been trying to figure out how Ryan Bates, in his Facebook Authentication screencast, is setting the following "FACEBOOK_APP_ID" and "FACEBOOK_SECRET" environment variables.
我一直试图弄清楚 Ryan Bates 如何在他的Facebook 身份验证截屏视频中设置以下“FACEBOOK_APP_ID”和“FACEBOOK_SECRET”环境变量。
provider :facebook, ENV['FACEBOOK_APP_ID'], ENV['FACEBOOK_SECRET']
There are similar-ish questions around, but no answers that I've been able to get to work on Rails 3.2.1.
周围有类似的问题，但没有我能够在 Rails 3.2.1 上工作的答案。
UPDATE:
更新：
As of May 2013, my preferred way to handle ENV variables is via the Figaro gem
截至 2013 年 5 月，我处理 ENV 变量的首选方法是通过Figaro gem
回答by iblue
You could take a look at the comments:
你可以看看评论：
You can either set environment variables directly on the shell where you are starting your server:
您可以直接在启动服务器的 shell 上设置环境变量：
FACEBOOK_APP_ID=12345 FACEBOOK_SECRET=abcdef rails server
Or (rather hacky), you could set them in your config/environments/development.rb:
或者（相当hacky），您可以将它们设置在您的config/environments/development.rb：
ENV['FACEBOOK_APP_ID'] = "12345";
ENV['FACEBOOK_SECRET'] = "abcdef";
An alternative way
另一种方式
However I would do neither. I would create a config file (say config/facebook.yml) which holds the corresponding values for every environment. And then load this as a constant in an initializer:
但是，我两者都不会。我会创建一个配置文件（比如config/facebook.yml），其中包含每个环境的相应值。然后将其作为常量加载到初始化程序中：
config/facebook.yml
config/facebook.yml
development:
app_id: 12345
secret: abcdef
test:
app_id: 12345
secret: abcdef
production:
app_id: 23456
secret: bcdefg
config/initializers/facebook.rb
config/initializers/facebook.rb
FACEBOOK_CONFIG = YAML.load_file("#{::Rails.root}/config/facebook.yml")[::Rails.env]
Then replace ENV['FACEBOOK_APP_ID']in your code by FACEBOOK_CONFIG['app_id']and ENV['FACEBOOK_SECRET']by FACEBOOK_CONFIG['secret'].
然后更换ENV['FACEBOOK_APP_ID']在你的代码FACEBOOK_CONFIG['app_id']，并ENV['FACEBOOK_SECRET']通过FACEBOOK_CONFIG['secret']。
回答by Stefan
There are several options:
有几种选择：
Set the environment variables from the command line:
export FACEBOOK_APP_ID=your_app_id export FACEBOOK_SECRET=your_secretYou can put the above lines in your
~/.bashrcSet the environment variables when running
rails s:FACEBOOK_APP_ID=your_app_id FACEBOOK_SECRET=your_secret rails sCreate a
.envfile with:FACEBOOK_APP_ID=your_app_id FACEBOOK_SECRET=your_secretand use either Foreman(starting your app with
foreman start) or the dotenvgem.
回答by Jan Hettich
Here's another idea. Define the keys and values in provider.ymlfile, as suggested above. Then put this in your environment.rb(before the call to Application.initialize!):
这是另一个想法。provider.yml如上所述，在文件中定义键和值。然后把它放在你的environment.rb（在调用之前Application.initialize!）：
YAML.load_file("#{::Rails.root}/config/provider.yml")[::Rails.env].each {|k,v| ENV[k] = v }
Then these environment variables can be referenced in the omniauthinitializer without any ordering dependency among intializers.
然后可以在omniauth初始化程序中引用这些环境变量，而在初始化程序之间没有任何顺序依赖性。
