在Wordpress模板的 function.php 下面的代码运行良好
// Function accepting current query
function my_change_order( $query ) {
// Check if the query is for an archive
if($query->is_archive())
// Query was for archive, then set order
$query->set( 'order' , 'asc' );
// Return the query (else there's no more query, oops!)
return $query;
}
// Runs before the posts are fetched
add_filter( 'pre_get_posts' , 'my_change_order' );
但我需要通过_my_meta_vip
之类的自定义元键订购文章。基于this answer我尝试了以下几行,但只获得了一半成功,因为只加载了定义了自定义元键的文章,其他文章丢失了。我该如何解决?
function my_change_order( $query ) {
if($query->is_archive())
$query->set( 'orderby' , 'meta_value' );
$query->set( 'meta_key' , '_my_meta_vip' );
return $query;
}
add_filter( 'pre_get_posts' , 'my_change_order' );
如何通过自定义元键正确订购文章?
答案 0 :(得分:2)
function my_change_order( $query ) {
// Check if the query is for an archive
if($query->is_archive())
// Query was for archive, then set order
$query->set( 'order' , 'asc' );
$query->set( 'meta_query', array(
array(
'key' => '_my_meta_vip'
)
));
// Return the query (else there's no more query, oops!)
return $query;
}
查看以下主题:https://wordpress.stackexchange.com/questions/20237/using-meta-query-how-can-i-filter-by-a-custom-field-and-order-by-another-one可能会给您一个清晰的想法
答案 1 :(得分:1)
最后无法找到任何方式列出所有已定义_my_meta_VIP
的帖子。
在我的解决方案中,所有_my_meta_VIP
都填充了enabled
或disabled
,以下代码执行此任务:
// Function accepting current query
function my_change_order( $query ) {
// Check if the query is for an archive
if($query->is_archive()) {
// Query was for archive, then set order
$query->set( 'post_type', 'profile' );
$query->set( 'orderby' , 'meta_value' );
$query->set( 'meta_key' , '_my_meta_vip' );
$query->set( 'order', 'DESC' );
} else {
// Return the original query for non-archive pages
return $query;
}
// Return the query
return $query;
}
// Runs before the posts are fetched
add_filter( 'pre_get_posts' , 'my_change_order' );
答案 2 :(得分:0)
这里的基本问题似乎是查询在帖子和帖子表上进行内部联接,这就是为什么没有特定帖子元条目的帖子不会被返回的原因查询。你想要的是一个左连接。有关差异的解释,请参阅this answer。
您应该可以使用posts_join
过滤器将内部联接替换为左联接:
add_filter('posts_join', function($join) {
global $wpdb;
// Replace inner join with left join
$search = 'INNER JOIN ' . $wpdb->postmeta;
$replace = 'LEFT JOIN ' . $wpdb->postmeta;
$join = str_ireplace($search, $replace, $join);
return $join;
});