为WordPress媒体文件添加重新关联附加选项
WordPress允许您将一个媒体文件关联附加到一篇文章，但默认不能修改关联，本教程将添加一个可以修改媒体文件关联附加的选项。
将下面代码添加到当前主题的 functions.php 文件:
- 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);
- }
- ?>
- <strong><a href=“<?php echo get_edit_post_link( $post->post_parent ); ?>”><?php echo $title ?></a></strong>, <?php echo get_the_time(__(‘Y/m/d’)); ?>
- <br />
- <a class=“hide-if-no-js” onclick=“findPosts.open(‘media[]’,'<?php echo $post->ID ?>’);return false;” href=“#the-list”><?php _e(‘Re-Attach’); ?></a>
- <?php
- } else {
- ?>
- <?php _e(‘(Unattached)’); ?><br />
- <a class=“hide-if-no-js” onclick=“findPosts.open(‘media[]’,'<?php echo $post->ID ?>’);return false;” href=“#the-list”><?php _e(‘Attach’); ?></a>
- <?php
- }
- }
原文：How To Re-Attach Media Files In WordPress
