Ruby Scraper with Nokogiri

rubyScraper.rb

#!/usr/bin/env ruby
Dir.chdir(File.dirname(__FILE__))

require 'nokogiri'
require 'open-uri'
require 'csv'

def spielerWerte (url)
  puts url

  doc = Nokogiri::HTML(open(URI.parse(URI.escape(url.to_s))))

  affiliation = doc.xpath('//span[@itemprop="affiliation"]/a')

  return {
    "name" => doc.xpath('//div[@itemprop="name"]/text()').to_s.strip,
    "birthDate" => doc.xpath('//span[@itemprop="birthDate"]/text()').to_s.strip,
    "birthPlace" => doc.xpath('//span[@itemprop="birthPlace"]/text()').to_s.strip,
    "affiliationTitle" => affiliation.xpath('@title').to_s.strip,
    "affiliationLink" => affiliation.xpath('@href').to_s.strip,
    "birthCountry" => doc.xpath('//table[@class="profilheader"][1]/tr[1]/td/span[3]/img/@title').to_s.strip
  }

end

CSV.open("spieler.csv", "w") do |csv|

  CSV.foreach(File.path("Kader-WMLink.csv"), :headers => true) do |el|
    
    wert = spielerWerte(el["link"])

    csv << wert.keys.push('unique') if ($.).eql? 2

    csv << wert.values.push(el["unique"])

    sleep(2)

  end

end

Kader-WMLink.csv

link,unique
http://www.transfermarkt.de/jefferson/profil/spieler/32561,jefferson_32561
http://www.transfermarkt.de/julio-cesar/profil/spieler/22412,julio-cesar_22412