public static function logStat()
{
if (Yii::$app->user->isGuest && !Yii::$app->session->has('stat')) {
$model = Session::find()->where(['id' => Yii::$app->session->id])->one();
if ($model === null) {
$model = new Session();
$model->id = Yii::$app->session->id;
$model->ip = Yii::$app->request->userIP;
$model->user_agent = Yii::$app->request->userAgent;
$model->created = $model->modified = time();
$model->save();
}
Session::updateAll(['status' => 0], 'modified < :time', [':time' => time() - 15 * 60]);
Yii::$app->session->set('stat', true);
}
}