typefactory.php

См. документацию.

<?php
 
namespace Bitrix\Main\UserField\Internal;

abstract class TypeFactory
{
    protected $itemEntities = [];

    abstract public function getTypeDataClass(): string;

    abstract public function getItemPrototypeDataClass(): string;
 
    abstract public function getCode(): string;

    public function getItemDataClass($type): string
    {
        return $this->getItemEntity($type)->getDataClass();
    }
 
    public function getItemEntity($type): \Bitrix\Main\ORM\Entity
    {
        $typeData = $this->getTypeDataClass()::resolveType($type);
        if(!empty($typeData) && isset($this->itemEntities[$typeData['ID']]))
        {
            return $this->itemEntities[$typeData['ID']];
        }
 
        $entity = $this->getTypeDataClass()::compileEntity($type);
        $this->itemEntities[$typeData['ID']] = $entity;
 
        return $entity;
    }

    public function getItemParentClass(): string
    {
        return Item::class;
    }
 
    public function getUserFieldEntityPrefix(): string
    {
        $code = $this->getCode();
        return static::getPrefixByCode($code).'_';
    }
 
    public function getUserFieldEntityId(int $typeId): string
    {
        return $this->getUserFieldEntityPrefix().$typeId;
    }
 
    public static function getCodeByPrefix(string $prefix): string
    {
        return mb_strtolower($prefix);
    }
 
    public static function getPrefixByCode(string $code): string
    {
        return mb_strtoupper($code);
    }
 
    public function prepareIdentifier($identifier)
    {
        return (int)$identifier;
    }
}