按“ACF”自定义字段排序帖子

Question

I have wordpress website with enfold theme. i want to sort the post within a masonry based on an id that i added to the posts using Custom fields. for example the post titles are a, b, c. each one of them has an id. and they belong to category "cat" and the cat category is selected in masonry. now i want to sort the items in masonry by my custom id. this link

defines a function for customizing sort options. how can i add my meta key to this code? i also tried to use this but the key is not displaying in sort options.

Answer 1

I did something similar recently, possibly this code will help you out. Add it to your functions.php

add_filter('posts_orderby','my_sort_custom',10,2);
function my_sort_custom( $orderby, $query ){
    global $wpdb;

    if(!is_admin() && is_category()) 
        $orderby =  $wpdb->prefix."postsmeta.MY_META_KEY ASC, {$wpdb->prefix}posts.post_date DESC";

    return  $orderby;
}