app helper to place google analytics

application_helper.rb

module ApplicationHelper

  def google_analytics_js

    content_tag(:script, :type => 'text/javascript') do
      "var _gaq || [];
      _gaq.push(['_setAccount', 'XX-XXXXXXXX-X']);
      _gaq.push(['_trackPageview']);

      (function() {
        var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
        ga.src = document.getElementByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
      })();"
    end if Rails.env.production?
  end
end

application_helper_var.rb

#this function allows you to input your account id when you call the function

module ApplicationHelper

  def google_analytics_js(id = nil)

    content_tag(:script, :type => 'text/javascript') do
      "var _gaq || [];
      _gaq.push(['_setAccount', '#{id}']);
      _gaq.push(['_trackPageview']);

      (function() {
        var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
        ga.src = document.getElementByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
      })();"
    end if !id.blank? && Rails.env.production?
  end
end

gistfile1.txt

<%= google_analytics_js 'XX-XXXXXXXX-X' %>

google_analytics_inview.rb

<%= google_analytics_js %>

Replace the XX-XXXXXXXX-X with your specific google analytics account number.