我在这里找到了一些好消息http://codex.wordpress.org/Plugin_API/Filter_Reference/request

我在request 像这样钩住：

add_filter( \'request\', \'alter_the_query\' );

钩子函数如下所示：

function alter_the_query( $request ) {

    $dummy_query = new WP_Query();  // the query isn\'t run if we don\'t pass any query vars
    $dummy_query->parse_query( $request );

    // if requesting a schedule and no posts are found with existing query vars, try the meta query
    if ( $request[\'post_type\'] == \'schedule\' && !$dummy_query->have_posts() ) {
        $posts = get_posts( array(
            \'post_type\' => \'schedule\',
            \'meta_query\' => array(
                array(
                    \'key\' => \'wsb_schedule_id\',
                    \'value\' => $request[\'schedule\'],
                )
            ),
        ) );

        if ( count( $posts ) == 0 ) return $request;    // no posts found still so return the request as is for normal processing

        // a post was found, so fix the request vars and return the modified $request object for further processing
        $request[\'schedule\'] = $posts[0]->post_slug;
        $request[\'name\'] = $posts[0]->post_slug;
    }

    return $request;

}

My hook函数使用本地范围的WP\\U查询对象运行请求，如果没有返回任何计划，它将尝试元查询。如果元查询成功，它将对$request 数组，然后让Wordpress继续处理。如果元查询失败，它只会返回未经修改的$请求，以便再次进行正常处理。

我不确定这将如何在时间表上得到许可，但那是另一回事。