archive_controller.rb

  def create
     @archive = Archive.new(archive_params)
     @archive.receipt = 0;
     options = {:col_sep => "\t", :row_sep => "\n"}

     SmarterCSV.process(archive_params[:attachment].path,options) do |chunk|
        chunk.each do |data_hash|
          @archive.receipt += data_hash[:price]
          Order.create!( data_hash )
        end
      end

     if @archive.save
        redirect_to archives_path, notice: "The resume #{@archive.name} has been uploaded."
     else
        render "new"
     end
  end