How to disable or remove entity references with unlimited cardinality once one entity reference is chosen

Shawn W

11/8/23, 9:48 PM

I have a paragraphs field that references multiple entity references with unlimited cardinality. I want to disable or remove the other options once one of the entities is selected. The use case is for a card grid component, only one card type should be available for the grid, so on select I would like to get rid of the additional options. The card grid should essentially only allow for one type of entity reference but with unlimited cardinality for the select entity.

I've tried with no success using a custom form_alter and checking the $form_state, but I would ideally like a no code option if possible.

if(!empty($form_state['values']['field_select_card_type_blue_card_w_image_add_more'])) { unset( $form['field_select_card_type']['add_more']['add_more_button_blue_card_w_o_image']); }

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Elon Musk

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EN: How to disable or remove entity references with unlimited cardinality once one entity reference is chosen

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