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Add Media Library Column to Re-Attach Images

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<?php
    //Add Media Library Column to Re-Attach Images
    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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