public function deactivateElements()
    {
        if (!$this->bDeactivate) {
            return;
        }

        $arDeactivateIDList = array_diff((array) $this->arExistIDList, (array) $this->arProcessedIDList);
        if (empty($arDeactivateIDList)) {
            return;
        }

        //Get element list
        $sModelClass = $this->getModelClass();
        $obElementList = $sModelClass::whereIn('external_id', $arDeactivateIDList)->get();
        foreach ($obElementList as $obElement) {
            $obElement->active = false;
            $obElement->save();
        }
    }