ElementToGetDetailInfo.php

<?php
 
namespace Bitrix\Lists\Api\Data\ServiceFactory;
 
use Bitrix\Lists\Api\Request\ServiceFactory\GetElementDetailInfoRequest;
use Bitrix\Main\ArgumentOutOfRangeException;
 
final class ElementToGetDetailInfo
{
    private int $iBlockId;
    private int $elementId;
    private int $sectionId;
 
    private array $additionalSelectFields = [];
    private bool $isNeedCheckPermissions;
 
    private function __construct(
        int $iBlockId,
        int $elementId,
        int $sectionId
    ){
        $this->iBlockId = $iBlockId;
        $this->elementId = $elementId;
        $this->sectionId = $sectionId;
    }
 
    public static function createFromRequest(GetElementDetailInfoRequest $request): self
    {
        $iBlockId = self::validateId($request->iBlockId);
        if ($iBlockId === null || $iBlockId === 0)
        {
            throw new ArgumentOutOfRangeException('iBlockId', 1, null);
        }
 
        $elementId = self::validateId($request->elementId);
        if ($elementId === null)
        {
            throw new ArgumentOutOfRangeException('elementId', 0, null);
        }
 
        $sectionId = self::validateId($request->sectionId);
        if ($sectionId === null)
        {
            throw new ArgumentOutOfRangeException('sectionId', 0, null);
        }
 
        $self = new self($iBlockId, $elementId, $sectionId);
 
        if ($request->additionalSelectFields)
        {
            $self->setAdditionalSelectFields($request->additionalSelectFields);
        }
 
        $self->isNeedCheckPermissions = $request->needCheckPermission;
 
        return $self;
    }
 
    private static function validateId(int $id): ?int
    {
        if ($id >= 0)
        {
            return $id;
        }
 
        return null;
    }
 
    private function setAdditionalSelectFields(array $selectFields): void
    {
        $allowedFields = ['FIELDS', 'PROPS', 'IBLOCK_ID', 'IBLOCK_SECTION_ID'];
 
        $fields = [];
        foreach ($selectFields as $fieldId)
        {
            if (in_array($fieldId, $allowedFields, true))
            {
                $fields[] = $fieldId;
            }
        }
 
        $this->additionalSelectFields = $fields;
    }
 
    public function getIBlockId(): int
    {
        return $this->iBlockId;
    }
 
    public function getElementId(): int
    {
        return $this->elementId;
    }
 
    public function getSectionId(): int
    {
        return $this->sectionId;
    }
 
    public function getAdditionalSelectFields(): array
    {
        return $this->additionalSelectFields;
    }
 
    public function isNeedCheckPermissions(): bool
    {
        return $this->isNeedCheckPermissions;
    }
}