/**
* Insert tracking code for applicable web requests.
*
* @param sfFilterChain $filterChain
*/
public function execute($filterChain)
{
$prefix = 'app_sf_google_analytics_plugin_';
$user = $this->context->getUser();
$request = $this->context->getRequest();
$response = $this->context->getResponse();
if ($this->isFirstCall()) {
$classes = array_merge(array('urchin' => 'sfGoogleAnalyticsTrackerUrchin', 'google' => 'sfGoogleAnalyticsTrackerGoogle'), sfConfig::get($prefix . 'classes', array()));
$class = $classes[sfConfig::get($prefix . 'tracker', 'urchin')];
$tracker = new $class($this->context);
// pull callables from session storage
$callables = $user->getAttribute('callables', array(), 'sf_google_analytics_plugin');
foreach ($callables as $callable) {
list($method, $arguments) = $callable;
call_user_func_array(array($tracker, $method), $arguments);
}
$request->setTracker($tracker);
}
$filterChain->execute();
$tracker = $request->getTracker();
// apply module- and action-level configuration
$module = $this->context->getModuleName();
$action = $this->context->getActionName();
$moduleParams = sfConfig::get('mod_' . strtolower($module) . '_sf_google_analytics_plugin_params', array());
$tracker->configure($moduleParams);
$actionConfig = sfConfig::get('mod_' . strtolower($module) . '_' . $action . '_sf_google_analytics_plugin', array());
if (isset($actionConfig['params'])) {
$tracker->configure($actionConfig['params']);
}
// insert tracking code
if ($this->isTrackable() && $tracker->isEnabled()) {
if (sfConfig::get('sf_logging_enabled')) {
sfGoogleAnalyticsToolkit::logMessage($this, 'Inserting tracking code.');
}
$tracker->insert($response);
} elseif (sfConfig::get('sf_logging_enabled')) {
sfGoogleAnalyticsToolkit::logMessage($this, 'Tracking code not inserted.');
}
$user->getAttributeHolder()->removeNamespace('sf_google_analytics_plugin');
$tracker->shutdown($user);
}
/**
* Confirm the tracker is configured correctly to support a linker.
*
* @param sfGoogleAnalyticsTracker $tracker
*/
function _check_linker_settings(sfGoogleAnalyticsTracker $tracker)
{
if ($tracker->getDomainName() !== 'none' || $tracker->getLinkerPolicy() !== true) {
sfGoogleAnalyticsToolkit::logMessage(basename(__FILE__), 'If tracking multiple domain names on one profile, the app.yml "domain_name" setting should be "off" and the "linker_policy" setting should be "on".', 'notice');
}
}
/**
* Update storage with callables for the next tracker.
*
* @param sfUser $user
*/
public function shutdown($user)
{
if (sfConfig::get('sf_logging_enabled')) {
sfGoogleAnalyticsToolkit::logMessage($this, 'Copying callables to session storage.');
}
$user->getAttributeHolder()->set('callables', $this->parameterHolder->getAll('flash', array()), 'sf_google_analytics_plugin');
}
