Revert "Use ab_user instead of session"

This reverts commit 22b1c37.

Author: andrew

lib/split/analytics.rb

@@ -31,9 +31,9 @@ def tracking_code(options = {})
     end
 
     def custom_variables
-      return nil if ab_user.nil?
+      return nil if session[:split].nil?
       arr = []
-      ab_user.each_with_index do |h, i|
+      session[:split].each_with_index do |h, i|
         arr << "_gaq.push(['_setCustomVar', #{i + 1}, '#{h[0]}', '#{h[1]}', 1]);"
       end
       arr.reverse[0..4].reverse.join("\n")

spec/analytics_spec.rb

@@ -20,6 +20,8 @@
   it 'should add custom variables for every test the user is involved in' do
     first_alt = ab_test('link_colour', 'red', 'blue')
 
+    session[:split].should eql({'link_colour' => first_alt})
+
     tracking_code = tracking_code(account: 'UA-12345-6')
     expect(tracking_code).to eql("        <script type=\"text/javascript\">\n          var _gaq = _gaq || [];\n          _gaq.push(['_setAccount', 'UA-12345-6']);\n          \n          _gaq.push(['_setCustomVar', 1, 'link_colour', '#{first_alt}', 1]);\n          _gaq.push(['_trackPageview']);\n          (function() {\n            var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;\n            ga.src = ('https:' == document.location.protocol ? 'https://ssl.google-analytics.com/ga.js' : 'http://www.google-analytics.com/ga.js');\n            var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);\n          })();\n        </script>\n")
   end

spec/spec_helper.rb

@@ -5,6 +5,10 @@
 require 'split/analytics'
 require 'ostruct'
 
+def session
+  @ab_user ||= {}
+end
+
 RSpec.configure do |config|
   config.order = 'random'
   config.before(:each) do