Networking\InitCmsBundle\EventListener\AdminTrackerListener::onKernelRequest PHP Метод

    public function onKernelRequest(GetResponseEvent $event)
    {
        $request = $event->getRequest();
        if (!$request) {
            return;
        }
        if (!$request->hasSession()) {
            return;
        }
        $adminCode = $request->get('_sonata_admin');
        if (!is_null($adminCode)) {
            $this->admin = $this->adminPool->getAdminByAdminCode($adminCode);
            if (!$this->admin) {
                throw new \RuntimeException(sprintf('Unable to find the admin class related to the current controller (%s)', get_class($this)));
            }
            if (method_exists($this->admin, 'getTrackedActions')) {
                foreach ($this->admin->getTrackedActions() as $trackedAction) {
                    // if an action which is flagged as 'to be tracked' is matching the end of the route: add info to session
                    if (preg_match('#' . $trackedAction . '$#', $request->get('_route'), $matches)) {
                        $this->updateTrackedInfo($request->getSession(), '_networking_initcms_admin_tracker', array('url' => $request->getRequestUri(), 'controller' => $this->admin->getBaseControllerName(), 'action' => $trackedAction));
                    }
                }
            }
        }
    }