在WordPress后臺(tái)文章列表顯示文章所用的附件數(shù)量

有沒(méi)有想過(guò)在WordPress后臺(tái)文章列表顯示每篇文章所用的附件數(shù)量？下面的代碼可以幫助你實(shí)現(xiàn)這個(gè)功能，你只需將代碼添加到主題的 functions.php 文件即可：

add_filter('manage_posts_columns', 'posts_columns_attachment_count', 5);
add_action('manage_posts_custom_column', 'posts_custom_columns_attachment_count', 5, 2);
function posts_columns_attachment_count($defaults){
    $defaults['wps_post_attachments'] = __('Att');
    return $defaults;
}
function posts_custom_columns_attachment_count($column_name, $id){
        if($column_name === 'wps_post_attachments'){
        $attachments = get_children(array('post_parent'=>$id));
        $count = count($attachments);
        if($count !=0){echo $count;}
    }
}