我创建了一个自定义帖子类型“服务”。我想上传和嵌入两个不同的库。我研究并获得了各种代码来创建元框，从中可以上传图像。

但问题是，我只能在一个元框中上传一幅图像，而不能上传整个图库。

请帮我解决这个问题，或者建议我其他的选择

<?php
/*
Plugin Name: Services
Plugin URI: 
Description: post types
Author: Amritanshu Kalia
Author URI: 
License: GPLv2 or later
*/
define( \'ROOT\', plugins_url( \'\', __FILE__ ) );
define( \'STYLES\', ROOT . \'/css/\' );
define( \'SCRIPTS\', ROOT . \'/js/\' );
// Registers the new post type and taxonomy

function wpt_services_posttype() {
    register_post_type( \'services\',
        array(
            \'labels\' => array(
                \'name\' => __( \'Services\' ),
                \'singular_name\' => __( \'services\' ),
                \'add_new\' => __( \'Add New services\' ),
                \'add_new_item\' => __( \'Add New services\' ),
                \'edit_item\' => __( \'Edit service\' ),
                \'new_item\' => __( \'Add New service\' ),
                \'view_item\' => __( \'View service\' ),
                \'search_items\' => __( \'Search service\' ),
                \'not_found\' => __( \'No services found\' ),
                \'not_found_in_trash\' => __( \'No services found in trash\' )
            ),
            \'public\' => true,
            \'supports\' => array( \'title\',\'thumbnail\', \'comments\',\'page-attributes\' ),
            \'capability_type\' => \'post\',
            \'rewrite\' => array("slug" => "services"), // Permalinks format
            \'menu_position\' => 6,             
            \'register_meta_box_cb\' => \'add_services_metaboxes\',
            \'show_ui\'=>true,
            \'query_var\'=>true
            )
    );
}
add_action( \'init\', \'wpt_services_posttype\' );     


/*Now we add the meta boxes to the services*/
add_action(\'add_meta_boxes\', \'add_services_metaboxes\');
function add_services_metaboxes() {     
    add_meta_box( \'services\' . \'_details\' , \'Media Library\', \'my_meta_box_details\', \'services\', \'normal\', \'high\' );
}    

function my_meta_box_details () {
    global $post;
    $post_ID = $post->ID; // global used by get_upload_iframe_src
    printf( "<iframe frameborder=\'0\' src=\' %s \' style=\'width: 100%%; height: 400px;\'> </iframe>", get_upload_iframe_src(\'media\') );
  }
?>