def build_table_body
      data.each_with_index do |row, i|
        output << ",\n" if i > 0 
        build_row(row)
      end
      output << "\n"
    end
def build_table_body
      data.each_with_index do |row, i|
        output << ",\n" if i > 0 
        build_row(row)
      end
      output << "\n"
    end
Uses the Row controller to build up the table body.