require 'fastercsv'

class Array
  def to_csv(options = {})    
    if all? { |e| e.respond_to?(:to_row) }
      FasterCSV.generate do |csv|
        csv << first.export_columns(options[:format])
        csv << map { |e| e.to_row(options[:format]) }
      end
    else
      FasterCSV.generate_line(self, options)
    end
  end
end