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
        }
}

!

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