config.rb

# Global Configuration
def load_config(file)
  File.exist?(file) ? YAML.load_file(file) : {}
end

def rails_platform
  if Rails.env.production?
    ENV['PLATFORM'] != 'production' ? :staging : :production
  else
    Rails.env.to_sym
  end
end

defaults = load_config(Rails.root.join('config', 'application.default.yml'))
settings = load_config(Rails.root.join('config', 'application.yml'))

CONFIG = defaults.deep_merge(settings).deep_symbolize_keys[rails_platform]