Mapping Data

mapping_data.rb

def self.parse_detail( rows )
    details = rows.map do |row|
      detail = {}
      [
        [:line_item, 0],
        [:title, 1],
        [:asin, 2],
        [:units_sold, 3],
        [:units_refunded, 4],
        [:net_units_sold, 5],
        [:net_units_borrowed, 6],
        [:free_units_promo, 7],
        [:free_units_price_match, 8],
      ].each do |dest_name, source_index|
        detail[dest_name] = row[source_index]
      end
      detail
    end
  end