Class: Metlinkr::Journey

Inherits:
Object
  • Object
show all
Defined in:
lib/metlinkr/journey.rb

Constant Summary collapse

START_URL = 
"http://jp.metlinkmelbourne.com.au/metlink/XSLT_TRIP_REQUEST2?language=en&itdLPxx_view=advanced"

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(from, to, options = nil) ⇒ Journey

Returns a new instance of Journey.



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# File 'lib/metlinkr/journey.rb', line 12

def initialize(from, to, options = nil)
  @from = from
  @to = to
  @options = options || {:methods => :all, :ignore_earlier_trip => true, :limit => 1}
end

Instance Attribute Details

#from ⇒ Object (readonly)

Returns the value of attribute from.



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# File 'lib/metlinkr/journey.rb', line 10

def from
  @from
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/metlinkr/journey.rb', line 10

def options
  @options
end

#to ⇒ Object (readonly)

Returns the value of attribute to.



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# File 'lib/metlinkr/journey.rb', line 10

def to
  @to
end

#trips ⇒ Object (readonly)

Returns the value of attribute trips.



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# File 'lib/metlinkr/journey.rb', line 10

def trips
  @trips
end

Instance Method Details

#plan ⇒ Object 



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# File 'lib/metlinkr/journey.rb', line 18

def plan

  agent = Mechanize.new
  agent.user_agent = 'Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0; chromeframe/12.0.742.112)'

  page = agent.get(START_URL)

  f = page.form('tripRequest')

  # Shitty hack for forcing address

  f.anyObjFilter_origin = 29
  f.execIdentifiedLoc_origin = 1
  f.execStopList_origin = 0

  f.anyObjFilter_destination = 29
  f.execIdentifiedLoc_destination = 1
  f.execStopList_destination = 0

  f.name_origin = from
  f.name_destination = to

  select_methods(f, options[:methods])

  results = f.click_button

  body = results.body

  doc = Nokogiri::HTML(body)

  links = doc.search('tr.p4 td.dontprint a, tr.p2 td.dontprint a')

  links.shift if options[:ignore_earlier_trip]

  links = links.slice(0, options[:limit])
  @trips = links.map do |link|
    href = link.attributes['href'].value
    fetch_and_parse_trip_from_href(agent, href)
  end
end