public static function getCurrentPage($url = '')
    {
        if (static::$currentPage !== false) {
            return static::$currentPage;
        }
        /** @var static $model */
        $model = static::find()->where([
            'url' => preg_replace('/[\/]{2,}/', '/', '/' . $url . '/'),
            'visible' => static::VISIBLE_YES
        ])->orderBy('id DESC')->one();
        if (!$model) {
            return static::$currentPage = null;
        }
        if ($model->layout) {
            Yii::$app->controller->layout = $model->layout;
        }
        Yii::$app->view->title = $model->page_title;
        Yii::$app->view->registerMetaTag(['name' => 'description', 'content' => $model->page_description]);
        Yii::$app->view->registerMetaTag(['name' => 'keywords', 'content' => $model->page_keywords]);
        return static::$currentPage = $model;
    }