cptr_save

function cptr_save() {
    global $post_ID;

    if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE ) return;
    if (!isset($_POST['myplugin_noncename'])) return;
    if (!wp_verify_nonce( $_POST['myplugin_noncename'], plugin_basename(__FILE__))) return;
    if (!current_user_can( 'edit_post', $post_ID ) ) return;

    $id = $_POST['post_ID'];
    $related = isset($_POST['reladded']) ? $_POST['reladded'] : array();
    update_post_meta($id, CI_CPTR_POST_RELATED, $related);



    // this is where I attempt to update the post_type

    $related_meta = get_post_meta($id, CI_CPTR_POST_RELATED, true);
    $related_posts = array();
    if (!empty($related_meta)) {
        //Get a list of post IDs
        foreach ($related_meta as $myrelated) {
            $post = get_post($myrelated);
            $related_posts[] = $post;
        }

        if(count($related_posts)>0)
        {
            foreach ($related_posts as $post)
            {
            // Update post
             $my_post = array( 'id' => $post->ID, 'post_status' => 'publish');
            // Update the post into the database
              wp_update_post( $my_post );

            }
        }

    }

}