Aligent_CacheObserver_Model_Config::_getObserversIndexedByClass PHP Метод

    protected function _getObserversIndexedByClass()
    {
        if (is_null($observers =& $this->_observersIndexedByClass)) {
            $observers = array();
            $cacheObserverConfig = Mage::getConfig()->getNode(self::XML_PATH_CACHEOBSERVER);
            if (!$cacheObserverConfig) {
                return $observers;
            }
            foreach ($cacheObserverConfig->children() as $node) {
                $observer = $this->_configNodeToObserver($node);
                foreach ($observer['classes'] as $class) {
                    if (!array_key_exists($class, $observers)) {
                        $observers[$class] = array($observer['observer']);
                    } else {
                        $observers[$class] = array_merge($observers[$class], array($observer['observer']));
                    }
                }
            }
        }
        return $observers;
    }