Hi @verde
You should be able to do it by using the “pre_get_posts” hook like this:
add_action('pre_get_posts','my_acf_image_change_query');
function my_acf_image_change_query( $wp_query_obj ) {
// only do this on certain field
if( isset($_POST['query']) && $_POST['query']['_acfuploader'] == 'field_1234567890abc' ){
// get the current post ID
$post_id = $_POST['post_id'];
// get the relationship raw value
$relationship = get_field('custom_field_name', $post_id, false);
// set the parent query
$wp_query_obj->set( 'post_parent__in', $relationship );
}
}
Where “field_1234567890abc” is the field key.
I hope this helps 🙂
