Class: Bacchanalytics::Analytics

Inherits:
Object
  • Object
show all
Includes:
GoogleAnalytics::Base, GoogleAnalytics::TrackingCode
Defined in:
lib/bacchanalytics/analytics.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods included from GoogleAnalytics::TrackingCode

#google_analytics_tracking_code, #ignored_organic_script

Methods included from GoogleAnalytics::Base

#response_source, #should_instrument?

Constructor Details

#initialize(app, options = {}) ⇒ Analytics

Returns a new instance of Analytics.



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# File 'lib/bacchanalytics/analytics.rb', line 6

def initialize(app, options = {})
  @app = app
  @web_property_id = options[:web_property_id] || "UA-XXXXX-X"
  @domain_name = options[:domain_name]
  @ignored_organic = options[:ignored_organic]
  @skip_ga_src = options[:skip_ga_src] || false
end

Class Method Details

.track_event(category, action, opt_label = nil, opt_value = nil, options = {}) ⇒ Object 



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# File 'lib/bacchanalytics/analytics.rb', line 42

def self.track_event(category, action, opt_label = nil, opt_value = nil, options = {})
  if opt_label.blank? || opt_value.blank?
    track_event_code = "_gaq.push(['_trackEvent', '#{category}', '#{action}'])"
  else
    track_event_code = "_gaq.push(['_trackEvent', '#{category}', '#{action}', '#{opt_label}', '#{opt_value}'])"
  end

  timeout = options[:timeout] rescue nil
  if timeout
    "#{track_event_code};setTimeout('void(0)', #{timeout});"
  else
    track_event_code
  end
end

.track_page_view_code(page) ⇒ Object 



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# File 'lib/bacchanalytics/analytics.rb', line 30

def self.track_page_view_code(page)
  "_gaq.push(['_trackPageview', '#{page}'])"
end

.track_page_view_script(page) ⇒ Object 



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# File 'lib/bacchanalytics/analytics.rb', line 34

def self.track_page_view_script(page)
  <<-SCRIPT
  <script type="text/javascript">
  #{track_page_view_code(page)};
  </script>
  SCRIPT
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/bacchanalytics/analytics.rb', line 14

def call(env)
  status, headers, response = @app.call(env)

  if should_instrument?(headers) && (source = response_source(response))
    @skip_ga_src = true if env["bacchanlytics.loaded_ga_src"]
    tracking_code = google_analytics_tracking_code(@web_property_id, @domain_name)

    env["bacchanalytics.loaded_ga_src"] = true
    new_body = source.sub /<[hH][eE][aA][dD]\s*>/, "<head>\n\n#{tracking_code}"
    headers["Content-Length"] = new_body.length.to_s
    Rack::Response.new(new_body, status, headers).finish
  else
    [status, headers, response]
  end
end