fieldtypemask.php

См. документацию.

<?php
 
namespace Bitrix\Main\ORM\Fields;

abstract class FieldTypeMask
{
    const SCALAR = 1;
    const EXPRESSION = 2;
    const USERTYPE = 4;
    const REFERENCE = 8;
    const ONE_TO_MANY = 16;
    const MANY_TO_MANY = 32;
 
    const FLAT = 1|2;
    const RELATION = 8|16|32;
 
    const ALL = 63;
}