WP order post type by taxonomy name

wp_order_posttype_by_taxonomy.php

<?php
//$oargs = array('orderby' => 'post__in', 'post__in' => get_order_tax_ids('events', 'region'));
//$args = array_merge($args, $oargs);

function get_order_tax_ids($post_type, $taxonomy) {
    global $wpdb;
    $ids = [];

    $sql = "SELECT p.ID FROM $wpdb->posts p
                JOIN $wpdb->term_relationships tr ON (tr.object_id = p.ID)
                JOIN $wpdb->term_taxonomy tt ON (tr.term_taxonomy_id = tt.term_taxonomy_id AND taxonomy = '$taxonomy')
                JOIN $wpdb->terms t ON (t.term_id = tt.term_id)
                WHERE post_status = 'publish' AND post_type = '$post_type' ORDER BY t.name ASC";

    $ids = $wpdb->get_col($sql);

    return $ids;
}