以下代码将更改特定帖子类型的上载目录！

只需确保将“post type”（第14行）的两个实例都替换为自定义post类型的名称即可。

/**
 * Change Upload Directory for Custom Post-Type
 * 
 * This will change the upload directory for a custom post-type. Attachments will
 * now be uploaded to an "uploads" directory within the folder of your plugin. Make
 * sure you swap out "post-type" in the if-statement with the appropriate value...
 */
function custom_upload_directory( $args ) {

    $id = $_REQUEST[\'post_id\'];
    $parent = get_post( $id )->post_parent;

    // Check the post-type of the current post
    if( "post-type" == get_post_type( $id ) || "post-type" == get_post_type( $parent ) ) {
        $args[\'path\'] = plugin_dir_path(__FILE__) . "uploads";
        $args[\'url\']  = plugin_dir_url(__FILE__) . "uploads";
        $args[\'basedir\'] = plugin_dir_path(__FILE__) . "uploads";
        $args[\'baseurl\'] = plugin_dir_url(__FILE__) . "uploads";
    }
    return $args;
}
add_filter( \'upload_dir\', \'custom_upload_directory\' );

==更新==

我忘了提到，如果您想使用WordPress的默认年/月方法组织上传文件夹，只需将第15行和第16行更改为以下内容：

$args[\'path\'] = plugin_dir_path(__FILE__) . "uploads" . $args[\'subdir\'];
$args[\'url\']  = plugin_dir_url(__FILE__) . "uploads" . $args[\'subdir\'];