public function actionOrder()
{
$links = \Yii::$app->request->post('links');
$state = Link::sortUpdate($links);
if ($state) {
$out = ['msg' => Yii::t('app', 'FLASH_SUCCESS_SAVE'), 'type' => 'success'];
} else {
$out = ['msg' => Yii::t('app', 'FLASH_ERROR_SAVE'), 'type' => 'danger'];
}
echo json_encode($out);
\Yii::$app->end();
}