[TYPO3-dev] Relations in TCA by not uid field.

[Dmitry]

Hi all,
I want to have relations to items separated by comma.
In TCA I write 

        'sub_classes' => [
            'exclude' => true,
            'label' => 'Sub Classes',
            'config' => [
                'type' => 'group',
                'internal_type' => 'db',
                'allowed' => 'tx_my_table',
                'size' => 10,
                'autoSizeMax' => 30,
                'maxitems' => 9999,
                'multiple' => 0,
            ],
            
        ],			
		
I get relations by uid field. But I need get relations by another filed. Is it possible? 
-- 
Kind regards,
Dmitry Vasilev
www: http://typo3.ru.net/
Skype: thule-varahi;
Phone: +7 950 001 85 15