Nextras\Orm\Entity\AbstractEntity::getterPrimaryProxy PHP Method

    private function getterPrimaryProxy($value = null, PropertyMetadata $metadata)
    {
        if ($this->persistedId !== null) {
            return $this->persistedId;
        } elseif (!$metadata->isVirtual) {
            return $value;
        }
        $id = [];
        $keys = $this->getMetadata()->getPrimaryKey();
        foreach ($keys as $key) {
            $id[] = $value = $this->getRawValue($key);
        }
        if (count($keys) === 1) {
            return $id[0];
        } else {
            return $id;
        }
    }