public static function css($url = false, $user_id = null) { if (Yii::$app->user->isGuest && $user_id == null) { return Yii::getAlias('@web') . '/css'; } if ($user_id == null) { $user_id = Yii::$app->user->identity->getId(); } $alpha_id = AlphaId::id($user_id); if ($url) { $base_url = Yii::getAlias('@web') . '/' . 'uploads'; return $base_url . '/' . $alpha_id . '/css'; } else { $base_path = Yii::getAlias('@webroot') . DIRECTORY_SEPARATOR . 'uploads'; return UserUrl::createNonexistentDirInPath($base_path, $alpha_id . DIRECTORY_SEPARATOR . 'css'); } }