gistfile1.rb

  def self.hash_by_comweek_fyear(comweek=0, fyear=0)
    orders = self.by_comweek_fyear(comweek, fyear)
    if orders.empty? then return nil end
    o_miny,o_maxy = orders.minmax_by(&:fyoc)
    o_maxy.downto(o_miny).each do |y|
      ords = orders.select { |o| o.fyoc == y }
      unless ords.empty?
        o_minw,o_maxw = orders.minmax_by(&:comweek)
        o_maxw.downto(o_minw).each do |w|
          os = ords.select { |o| o.comweek == w }
        end
      end
    end
  end