Easy Settings in Rails

deep_struct.rb

# lib/deep_struct.rb

# Source: http://andreapavoni.com/blog/2013/4/create-recursive-openstruct-from-a-ruby-hash
require 'ostruct'

module Utils
  class DeepStruct < OpenStruct
    def initialize(hash=nil)
      @table = {}
      @hash_table = {}

      if hash
        hash.each do |k,v|
          @table[k.to_sym] = (v.is_a?(Hash) ? self.class.new(v) : v)
          @hash_table[k.to_sym] = v

          new_ostruct_member(k)
        end
      end
    end

    def to_h
      @hash_table
    end

  end
end

settings.rb

# config/initializers/settings.rb

settings = YAML::load_file(Rails.root.join("config", "settings.yml"))
settings.merge(settings[Rails.env] || {})
::Settings = Utils::DeepStruct.new(settings)

settings.yml

# config/settings.yml

aws_key: lfjdsklafjdklsafjdsa
aws_secret_key: jkfldsjafldsafjdsa
timeout: 5

production:
  aws_key: fdkslafjkdlsaf