entityfieldtype.php

См. документацию.

<?php
 
namespace Bitrix\Catalog\RestView;
 
use Bitrix\Rest\Integration\View\Attributes;
 
class EntityFieldType
{
    public const PRODUCT_PROPERTY = 'productproperty';
    public const PRODUCT_PROPERTY_SETTINGS = 'productpropertysettings';
 
    public static function prepareProductField(array $field, array $description, array $attributes): array
    {
        $field['NAME'] = $description['NAME'] ?? '';
        if (($description['TYPE'] ?? null) === self::PRODUCT_PROPERTY)
        {
            $field = static::prepareProductPropertyField($field, $description, $attributes);
        }
 
        return $field;
    }
 
    protected static function prepareProductPropertyField(array $field, array $description, array $attributes): array
    {
        $field['IS_DYNAMIC'] = true;
        $field['IS_MULTIPLE'] = in_array(Attributes::MULTIPLE, $attributes, true);
        $field['PROPERTY_TYPE'] = $description['PROPERTY_TYPE'];
        $field['USER_TYPE'] = $description['USER_TYPE'];
        if (isset($description['VALUES']))
        {
            $field['VALUES'] = $description['VALUES'];
        }
 
        return $field;
    }
}