userId ? \User::createFromId($this->userId) : null; } public function getDeliveryType(): ?\DeliveryType { return $this->deliveryTypeId ? \DeliveryType::get($this->deliveryTypeId, true) : null; } public function getSeller(): ?array { if (!$this->sellerId) { return null; } $sellerUtil = ServiceContainer::getService(SellerUtil::class); return $sellerUtil->getSeller($this->sellerId); } }