ProductGroupAction::getProductFieldCanBuyZeroRequest

protected function getProductFieldCanBuyZeroRequest(): ?array
{
	$result = $this->request->get($this->getFormRowFieldName('CAN_BUY_ZERO'));
	if (!is_string($result))
		return null;
	if (!$this->checkStatusValue($result))
		return null;
	return ['CAN_BUY_ZERO' => $result];
}