Class: NationalRail::VirginLiveDepartureBoards

Inherits:
Object
  • Object
show all
Includes:
CellParser
Defined in:
lib/national-rail/virgin_live_departure_boards.rb,
lib/national-rail/virgin_live_departure_boards.rb,
lib/national-rail/virgin_live_departure_boards/details_page_parser.rb

Defined Under Namespace

Modules: CellParser Classes: DetailsPageParser, NokogiriParser, SummaryRow, TimeParser

Class Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from CellParser

#cell_text

Constructor Details

#initialize ⇒ VirginLiveDepartureBoards

Returns a new instance of VirginLiveDepartureBoards.



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# File 'lib/national-rail/virgin_live_departure_boards.rb', line 88

def initialize
  @agent = Mechanize.new
  @agent.pluggable_parser.html = NokogiriParser
  @agent.user_agent_alias = "Mac FireFox"
end

Class Attribute Details

.capture_path ⇒ Object

Returns the value of attribute capture_path.



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# File 'lib/national-rail/virgin_live_departure_boards.rb', line 44

def capture_path
  @capture_path
end

Class Method Details

.capture(page, filename) ⇒ Object 



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# File 'lib/national-rail/virgin_live_departure_boards.rb', line 45

def capture(page, filename)
  if capture_path.present?
    FileUtils.mkdir_p(capture_path)
    path = File.join(capture_path, filename)
    File.open(path, "w") { |f| f.write(TidyFFI::Tidy.new(page.parser.to_html).clean) }
  end
rescue => e
  puts e
end

Instance Method Details

#summary(station_code) ⇒ Object 



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# File 'lib/national-rail/virgin_live_departure_boards.rb', line 94

def summary(station_code)
  time_parser = TimeParser.new
  summary_rows = []
  filename = "summary.aspx?T=#{station_code}"
  @agent.get("http://realtime.nationalrail.co.uk/virgintrains/#{filename}") do |page|
    VirginLiveDepartureBoards.capture(page, filename)
    encoding = 'UTF-8'
    summary_rows = ((page.doc/"table#TrainTable tbody tr")[2..-1] || []).map do |tr|
      tds = tr/"td"
      details_href = (tds[0]/"a").first["href"]
      details_link = page.links.detect { |l| l.attributes["href"] == details_href }
      SummaryRow.new(@agent, details_link, {
        :from => (tds[0]/"a").inner_text.gsub(/\s+/, ' '),
        :timetabled_arrival => time_parser.parse(cell_text(tds[1])),
        :expected_arrival => time_parser.parse(cell_text(tds[2])),
        :platform => parse_integer(cell_text(tds[3])),
        :to => (tds[4]/"a").inner_text.gsub(/\s+/, ' '),
        :timetabled_departure => time_parser.parse(cell_text(tds[5])),
        :expected_departure => time_parser.parse(cell_text(tds[6])),
        :operator => (tds[7]/"a").inner_text.gsub(/\s+/, ' '),
        :details_url => "http://realtime.nationalrail.co.uk/virgintrains/#{details_href}"
      })
    end
  end
  summary_rows
end