Reply To: Search Relational Items by their ACF Fields

• John Huebner

• October 18, 2015 at 2:52 am

That is basically what you need to do, alter the query used to get the posts. I’m not exactly sure this is 100% correct because I have not taken the time to test it and I don’t know what kind of field you are searching, but it should have the basics.

add_filter('acf/fields/relationship/query/name=YOUR_FIELD_NAME', 'add_artist_meta_query', 10, 3);
function add_artist_meta_query($args, $field, $post_id) {
  if (isset($args['s'])) {
    $args['meta_query] = array(
      array(
        'key' => 'YOUR_FIELD_NAME',
        'value' => $args['s'],
        'compare' => 'LIKE'
      )
    );
  }
  return $args;
}

$args = apply_filters('acf/fields/relationship/query/name=' . $field['name'], $args, $field, $options['post_id'] );