Scraping the Pregame betting site for analysis of their results. As they use Divs for their tables, it took some trial and error to find the right fields with Nokogiri. This will create a CSV and covers the 2013 year, although it craps out quickly. Hmm. No records are shown, where I'm pretty sure there were before. Hacked up in a few hours, so t…

pregame.rb

#!/usr/bin/env ruby

require 'nokogiri'
require 'open-uri'
require 'net/http'
require 'cgi'
require 'fileutils'
require "date"

begin
	date = '20131229'

	output = File.open("pregame_results_2013.csv","w")

	output << 'date,pro,sport,pick,score,odds,size,wl,result\n'

	while date != '20121231'
		puts "Working on #{date}."

		doc = Nokogiri::HTML(open("http://pregame.com/pregamepros/picks/date.aspx?date=#{date}"))
		a = doc.xpath('//*[@id="contmain"]/div/div[3]')

		start = 3

		ending = a.children.count

		while start < ending

			b = a.xpath("./div[#{start}]")


			result_date = Date.strptime(date,'%Y%m%d')
			result_date = '"' + result_date.strftime('%m/%d/%Y') + '"'
			pro = '"' + b.xpath('./div[1]').text.gsub(/(\r\n(\s)+)/,'').sub(/\u00a0/,'').strip + '"'
			sport = '"' + b.xpath('./div[2]').text.gsub(/(\r\n(\s)+)/,'').sub(/\u00a0/,'').strip + '"'
			pick = '"' + b.xpath('./div[3]').text.gsub(/(\r\n(\s)+)/,'').sub(/\u00a0/,'').strip + '"'
			score = '"' + b.xpath('./div[4]').text.gsub(/(\r\n(\s)+)/,'').sub(/\u00a0/,'').strip + '"'
			odds = '"' + b.xpath('./div[5]').text.gsub(/(\r\n(\s)+)/,'').sub(/\u00a0/,'').strip + '"'
			size = '"' + b.xpath('./div[6]').text.gsub(/(\r\n(\s)+)/,'').sub(/\u00a0/,'').strip + '"'
			wl = '"' + b.xpath('./div[7]').text.gsub(/(\r\n(\s)+)/,'').sub(/\u00a0/,'').strip + '"'
			result = '"' + b.xpath('./div[8]').text.gsub(/(\r\n(\s)+)/,'').sub(/\u00a0/,'').strip + '"'

			start += 1

			if pro != ''
				output << [result_date,pro,sport,pick,score,odds,size,wl,result].join(',')
				output << "\n"
			end
		end

		d = Date.strptime(date,'%Y%m%d')
		d -= 1
		date = d.strftime('%Y%m%d')
	end

	output.close
	
end