Reply To: acf_form – "On Update" action

• mark.tabner

• January 31, 2023 at 11:43 am

Ok, slight change to the above function. Think you have to use the order id rather than the post ID:

function delegate_form_update($value, $order, $field) {

	// only do it to certain custom fields
	if($field['name'] == 'ticket_alloc') {

		// get the old (saved) value
		$old_value = get_field('ticket_alloc', $order->get_id());

		// get the new (posted) value
		$new_value = $_POST['acf']['field_63ca95e88557a'];

		// check if the old value is the same as the new value
		if($old_value != $new_value) {
			// Do something if they are different
		} else {
			// Do something if they are the same
		}

	}

	// don't forget to return to be saved in the database
	return $value;

}
add_filter('acf/update_value', 'delegate_form_update', 10, 3);