Class: Scraper

Inherits:
Object
  • Object
show all
Defined in:
lib/blackfriday2016/base_scraper.rb

Class Method Summary collapse

Class Method Details

.scrape_index_page(index_url) ⇒ Object 



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# File 'lib/blackfriday2016/base_scraper.rb', line 7

def self.scrape_index_page(index_url)
  index_page = Nokogiri::HTML(open(index_url))#.css("div.main").css("div.simple-vendor-grid")[1]

  vendor_index = []
  counter = 1

  vendor_page = index_page.css("h3+div.simple-vendor-grid")[1..-1].css("div.line.grid-line.content-line").each do |vendor_line|
    vendor_line.css("div.unit.tile.size1of3").each do |vendor|
      if vendor.css("div.content-box-hd").css("a").any?
        vendor_details = {
          :number => counter,
          :name => vendor.css("div.content-box-hd").css("a").text,
          :page_url => vendor.css("div.content-box-hd").css("a").attribute("href").value,
          :index_pagenum => (counter/10.to_f).ceil
        }
        counter+=1
      else
        break
      end
      vendor_index << vendor_details
    end
  end
  vendor_index
end

.scrape_vendor_page(vendor_url) ⇒ Object

Scrape Vendor’s Deal Pages one by one as requested



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# File 'lib/blackfriday2016/base_scraper.rb', line 33

def self.scrape_vendor_page(vendor_url)
  deals_page = Nokogiri::HTML(open(vendor_url))

  #prev_page = String.new
  #next_page = String.new
  full_page_deals = []

  #Compile deals from the page
  main_container = deals_page.css("div.main.browsecontent")
  main_container.css("div.content-view.content-box.content-summary").each do |link|
    individual_deal = []
    deal_detail = link.css("div.unit.size3of4").css("h3.headline-xlarge a").text
    price_detail = link.css("div.unit.size3of4").css("div.content-call-out").text.strip.gsub(/\s+/, " ")
    price_detail = "FREE" if price_detail == ""
    individual_deal << deal_detail << price_detail
    full_page_deals << individual_deal
  end

  #Collect page and page link details
  pager = main_container.css("div.pager")

  #Collect link to previous page, if it exists
  if pager.css("a.pager-end[rel=prev]").any?
    prev_page = pager.css("a.pager-end[rel=prev]").attribute("href").value.gsub("http://dealnews.com","")
  else
    prev_page = nil
  end

  #Collect link to next page, if it exists
  if pager.css("a.pager-end[rel=next]").any?
    next_page = pager.css("a.pager-end[rel=next]").attribute("href").value.gsub("http://dealnews.com","")
  else
    next_page = nil
  end

  #Collect current deal page number
  page_num = pager.css("strong.pager-link.pager-current").text

  #Collect Vendor name
  name = deals_page.css("h1.section-heading").text.gsub(" Black Friday Ads","")

  #Compile entire deal page Hash
  deal_page_complete = {
    :prev_page_link => prev_page,
    :next_page_link => next_page,
    :pagenum => page_num.to_i,
    :deals => full_page_deals,
    :vendor_name => name
  }

  deal_page_complete
end