private static function _isActive() { if (self::$_isActive == -1) { // This override is part of the cloudcache module, so the cloudcache.php file exists require_once dirname(__FILE__) . '/../../../modules/cloudcache/cloudcache.php'; $module = new CloudCache(); self::$_isActive = $module->active; } return self::$_isActive && Configuration::get('CLOUDCACHE_API_ACTIVE'); }