Simple test scraping whith nokogiri

scraper.rb

require 'open-uri'
require 'nokogiri'

def getPageResult (html_data)
  $data_array = []
  list_ads = html_data.css('.list-lbc a')
  list_ads.each { |add|

      url = add['href']
      title = add.css('.detail .title').text.gsub(/\s+/,' ')
      price = add.css('.detail .price').text.gsub(/\s+/,'').gsub(/\u00a0/,'').gsub(/\u20AC/," euros")
      data = {price:price , title:title , url:url}
      $data_array.push(data)
  }
  $data_array
end

$pageResults = []
$pages = []

searchUrl = "http://www.leboncoin.fr/annonces/offres/rhone_alpes/occasions/?o=1&q=guitar"
stream = open(searchUrl)
html = stream.read
html_data = Nokogiri::HTML(html)
$pageResults.concat(getPageResult(html_data))
pages_list = html_data.css('#paging a')
pages_list.each{ |page_link|
  if page_link.text != "Page suivante" && page_link.text != ">>"
    puts "page #{page_link.text}"
    stream = open(page_link['href'])
    html = stream.read
    html_data = Nokogiri::HTML(html)
    $pageResults.concat(getPageResult(html_data))
    pages_list = html_data.css('#paging a')
    sleep(2.5)
  end
}
puts $pageResults