tribe_has_wootickets() tpl tag (WT 1.0.1)

function tribe_has_wootickets($post_id = null) {
    global $wpdb;
    $id = TribeEvents::postIdHelper($post_id);

    $result = $wpdb->get_var($wpdb->prepare(
        "SELECT COUNT(*) FROM $wpdb->postmeta WHERE meta_key = %s AND meta_value = %d LIMIT 1",
        '_tribe_wooticket_for_event', $id
    ));

    return (is_numeric($result) and $result > 0);
}