'app-backend', 'basePath' => dirname(__DIR__), 'vendorPath' => dirname(dirname(__DIR__)) . '/vendor', 'preload' => array('log'), 'controllerNamespace' => 'backend\controllers', 'modules' => array( ), 'components' => array( 'db' => $params['components.db'], 'cache' => $params['components.cache'], 'user' => array( 'class' => 'yii\web\User', 'identityClass' => 'common\models\User', ), 'log' => array( 'targets' => array( array( 'class' => 'yii\log\FileTarget', 'levels' => array('error', 'warning'), ), ), ), ), 'params' => $params, );