gem 'gtfs_reader'

require 'gtfs_reader'

GtfsReader.config do
  # verbose true # TODO: uncomment for verbose output
  return_hashes true

  sources do
    sample do
      url 'http://localhost/sample-feed.zip' # you can also use a filepath here
      before { |etag| puts "Processing source with tag #{etag}..." }
      handlers do
        agency { |row| puts "Read Agency: #{row[:agency_name]}" }
        routes { |row| puts "Read Route: #{row[:route_long_name]}" }
      end
    end
  end
end

GtfsReader.update(:sample) # or GtfsReader.update_all!

GtfsReader.config do
  sources do
    sample do
      feed_definition do
        file(:drivers, required: true) do # for my_file.txt
          col(:licence_number, required: true, unique: true)

          # If the employment column contains "1", the symbol :fulltime will be
          # returned, otherwise :temporary will be returned

          col :employment, &output_map({ female: '1', male: '2' }, :unspecified)

          # This will allow you to create a custom parser. Within the given
          # block you can reference other columns in the current row by name.
          col :name do |name|
            case employment
            when :fulltime  then "Mr. #{name}"
            when :temporary then "#{name} the newbie"
            else            name
            end
          end
        end
      end

      # ...

    end
  end
end