为WordPress媒体文件添加重新关联附加选项

add_filter("manage_upload_columns", 'upload_columns');
add_action("manage_media_custom_column", 'media_custom_columns', 0, 2);

function upload_columns($columns) {
unset($columns['parent']);
$columns['better_parent'] = "Parent";
return $columns;
}
function media_custom_columns($column_name, $id) {
$post = get_post($id);
if($column_name != 'better_parent')
return;
if ( $post->post_parent > 0 ) {
if ( get_post($post->post_parent) ) {
$title =_draft_or_post_title($post->post_parent);
}
?>
,



} else {
?>



}
}