如何在配置/启动器中使用YML值 [英] How to use YML values in a config/initalizer

问题描述

我正在努力在我的应用程序中集成Facebook。为了做到这一点，我使用考拉，设计和omniauth。

对于考拉，我有

  /config/facebook.yml 
 
开发：
 app_id：123123132123 
 secret_key：dasadsasd1231231 
测试：
 app_id： 313131313 
 secret_key：das132asdads12132 
制作：
 app_id：dasdsadsadsadsa 
 secret_key：adsdsa12das123fds21 
  

然后我也有omniauth：

  /config/initalizers/omniauth.rb 
 
 Rails.application.config.middleware.use OmniAuth :: Builder do 
 provider：facebook，123123132123，'dasadsasd1231231'
 end 
  

这里的问题是在两个位置重复相同的值。我怎么可以干掉这个，以便app_id和secret_key只能存在一个地方，一个文件引用另一个？

想法？谢谢

解决方案

有一个伟大的轨道运动这样做： http://railscasts.com/episodes/85-yaml-configuration-file

在 omniauth.rb ，您可以添加以下行：

  FACEBOOK_CONFIG = YAML.load_file（ ＃{RAILS_ROOT} /config/facebook.yml）[RAILS_ENV] 
  

然后你可以做： / p>

  Rails.application.config.middleware.use OmniAuth :: Builder do 
提供者：facebook，FACEBOOK_CONFIG ['app_id' ]，FACEBOOK_CONFIG ['secret_key'] 
 end 
  

I'm working to integrate facebook in my app. To do that I'm using koala, devise, and omniauth.

For koala, I have

/config/facebook.yml

development:
    app_id: 123123132123
    secret_key: dasadsasd1231231
test:
    app_id: 313131313
    secret_key: das132asdads12132
production:
    app_id: dasdsadsadsadsa
    secret_key: adsdsa12das123fds21

I then also have with omniauth:

/config/initalizers/omniauth.rb

Rails.application.config.middleware.use OmniAuth::Builder do
  provider :facebook, 123123132123, 'dasadsasd1231231'
end

Problem here is I have the same value repeated in both locations. How can I dry this up so that the app_id and secret_key only live in one place and one file references the other?

Ideas? Thanks

解决方案

There is a great Railscast on doing this: http://railscasts.com/episodes/85-yaml-configuration-file

In omniauth.rb, you can add this line:

FACEBOOK_CONFIG = YAML.load_file("#{RAILS_ROOT}/config/facebook.yml")[RAILS_ENV]

Then you can do:

Rails.application.config.middleware.use OmniAuth::Builder do
  provider :facebook, FACEBOOK_CONFIG['app_id'], FACEBOOK_CONFIG['secret_key']
end

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