Hey guys hope you can help me in the right direction with my problem.
I have a webshop. In my shop_orders i have made af ACF post_object select field in which I can choose multiple shop_orders from.
But I only want to be able to choose a shop_order from the field one time, so if I choose the shop_orders with IDs #1 and #2 then I dont want to be able to choose IDs #1 and #2 again anywhere (or at least not in the same field in the other shop_orders).
I have played around a bit with this filter:
https://www.advancedcustomfields.com/resources/acf-fields-post_object-query/
And I understand how I can manually exclude certain shop_orders from the post_object select field with $args[‘exclude’].
But i want to automaticaly loop through all the shop_orders and check which values has be chosen in the different shop_orders and then put them all in the $args[‘exclude’] so those values cant be chosen again in any other shop_order.
But I dont know how I can loop through all the shop_orders inside the post_object query filter.
Here is an explanation of how the code could look like but it is just for give an idea of what I want to achieve, it is not a working code in any way:
I dont expect that someone wants to write the code for me. All I need is just to be pointed in the right direction and to get some links to things I can read or something. Thank you.
function my_post_object_query( $args, $field, $post_id ) {
// exclude all shop_orders with certain IDs
$args['exclude'] = ''; // '1,2,3,4' IDs of shop_orders to exclude
// get all shop_orders
$shop_orders = get_posts(array('post_type'=>'shop_order'));
// loop through all shop_orders
foreach( $shop_orders as $shop_order ):
// get the Post Object field inside each shop_order
$shop_order_field = get_field( 'my_field', $shop_order->ID );
$shop_order_field_values = ??????;// get selected values from the field somehow
// for each value from the field
foreach( $shop_order_field_values as $val ):
$args['exclude'] .= $val . ','; // put the selected values into the exclude argument
endforeach;
endforeach;
// now i return the arguments which will filter away all the shop_orders that has already been selected in the my_field in any of the shop_orders
return $args;
};
add_filter('acf/fields/post_object/query/name=my_field', 'my_post_object_query', 10, 3);
