class ISORecords

  attr_reader :data

  def initialize(path)
    @data = JSON.parse(File.read(path), :symbolize_names => true)
  end

  def values_for(fields)
    fields = [fields] unless fields.is_a?(Array)
    data.map{|record| fields.map{|field| record[field.to_sym] }}.flatten.compact.map(&:upcase)
  end
end