private getVirtualAttributeBackend ( ) : Magento\Eav\Model\Entity\Attribute\Backend\AbstractBackend | ||
return | Magento\Eav\Model\Entity\Attribute\Backend\AbstractBackend |
private function getVirtualAttributeBackend()
{
if ($this->virtualAttributeBackend === null) {
$this->virtualAttributeBackend = $this->getResource()->getAttribute('virtual_rule')->getBackend();
}
return $this->virtualAttributeBackend;
}