WordPress/ACF：按多个字段对帖子进行排序

Question

我的帖子包含两个高级自定义字段“姓名”和“姓氏” 我需要查询帖子以使其处于正确的顺序。 姓名/姓氏/头衔

像这样： Doe，Joen，标题

我的查询看起来像这样

$args = array(

'numberposts' => -1,
'post_type' => array ('events'),
'meta_key' => 'name',
'orderby' => 'meta_value',
'order' => 'ASC',
'meta_query'=> array(
    array(
        'key' => 'date',
        'compare' => '<',
        'value' => $today,
        'type' => 'DATE',
        )),

);

如何以正确的方式排序帖子？

我试过这样的：

'orderby' => 'meta_value surname',

但我认为这不适用于自定义字段

谢谢！！！

++

非常感谢穆克什！ 这行得通（我希望如此……）

    SELECT SQL_CALC_FOUND_ROWS * FROM wpdev_posts
    INNER JOIN wpdev_postmeta ON ( wpdev_posts.ID = post_id  ) 
    INNER JOIN wpdev_postmeta AS mt1 ON ( wpdev_posts.ID = mt1.post_id ) 
    INNER JOIN wpdev_postmeta AS mt2 ON ( wpdev_posts.ID = mt2.post_id ) 
    WHERE 1=1 AND ( wpdev_postmeta.meta_key = 'referent_name' )     AND ( mt1.meta_key = 'referent_vorname' )     

    AND ( ( mt2.meta_key = 'datum' AND CAST(mt2.meta_value AS DATE) < 20190527 ) ) 
    AND wpdev_posts.post_type = 'veranstaltungen' 
    AND (wpdev_posts.post_status = 'publish' 
    OR wpdev_posts.post_status = 'pending' OR wpdev_posts.post_status = 'confirmed' 
    OR wpdev_posts.post_status = 'paid' OR wpdev_posts.post_status = 'complete' 
    OR wpdev_posts.post_status = 'private') 


    GROUP BY wpdev_posts.ID 
    ORDER BY wpdev_postmeta.meta_value ASC, mt1.meta_value ASC, post_title ASC      

Answer 1

试试下面的代码，它会对你有所帮助。

<?php 
    global $wpdb;
     $query = "SELECT SQL_CALC_FOUND_ROWS * FROM $wpdb->posts
                 INNER JOIN $wpdb->postmeta ON ( $wpdb->posts.ID = $wpdb->postmeta.post_id ) 
                 INNER JOIN $wpdb->postmeta AS mt1 ON ( wp_posts.ID = mt12.post_id ) 
                 INNER JOIN $wpdb->postmeta AS mt2 ON ( wp_posts.ID = mt2.post_id ) 
                 WHERE 1=1 AND ( $wpdb->postmeta.meta_key = 'name' ) AND ( mt1.meta_key = 'surname' ) 
                 AND ( ( mt2.meta_key = 'date' AND CAST(mt2.meta_value AS DATE) < $today ) ) ) 
                 AND $wpdb->posts.post_type = 'events' AND ($wpdb->posts.post_status = 'publish' 
                 OR $wpdb->posts.post_status = 'pending' OR $wpdb->posts.post_status = 'confirmed' 
                 OR $wpdb->posts.post_status = 'paid' OR $wpdb->posts.post_status = 'complete' 
                 OR $wpdb->posts.post_status = 'private') 
                 GROUP BY wp_posts.ID 
                 ORDER BY wp_postmeta.meta_value ASC, mt1.meta_value ASC ";

    $posts = $wpdb->get_results($query, object);
    echo '<pre>';print_r($posts);
?>