从config/initializers/devise.rb获取facebook app id

daS*_*wie 3 ruby-on-rails devise ruby-on-rails-3

我在config/initializers/devise.rb中设置了我的facebook app id,现在我正试图在我的控制器中检索它.

我怎么称呼它?

Devise.setup do |config|
    config.omniauth :facebook, 'XXXXXX', 'XXXXX', :scope => 'email,offline_access,user_likes,user_interests,publish_actions,publish_stream'
end 
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duk*_*ave 5

Devise.omniauth_configs[:facebook].strategy.client_id
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