transform.rb

    def transform(value, type = :unaltered)
      case value
      when Hash then value.deep_transform_keys! { |key| transform(key, type) }
      when Symbol then transform(value.to_s, type).to_sym
      when String
        case type
        when :dash then value.dasherize
        when :camel then value.underscore.camelize
        when :camel_lower then value.underscore.camelize(:lower)
        when :underscore then value.underscore
        else value
        end
      else value
      end
    end