Wordpress在管理员中添加自定义帖子类型添加/编辑帖子的下拉列表

我是wordpress的新手 .

我创建了三个“自定义帖子”类型

• 两个惠勒

• 三轮车

• Four Wheeeler

我使用以下代码在admin中创建自定义帖子类型 .

function create_post_type_two_wheeler()
{
    register_taxonomy_for_object_type('category', 'TwoWheeler'); // Register Taxonomies for Category
    register_taxonomy_for_object_type('post_tag', 'TwoWheeler');
    register_post_type('client', // Register Custom Post Type
        array(
            'labels' => array(
                'name' => __('TwoWheeler', 'vehicles'), // Rename these to suit
                'singular_name' => __('TwoWheeler', 'vehicles'),
                'add_new' => __('Add New', 'vehicles'),
                'add_new_item' => __('Add New TwoWheeler', 'vehicles'),
                'edit' => __('Edit', 'vehicles'),
                'edit_item' => __('Edit TwoWheeler', 'vehicles'),
                'new_item' => __('New TwoWheeler', 'vehicles'),
                'view' => __('View TwoWheeler', 'vehicles'),
                'view_item' => __('View TwoWheeler', 'vehicles'),
                'search_items' => __('Search TwoWheeler', 'vehicles'),
                'not_found' => __('No TwoWheeler found', 'vehicles'),
                'not_found_in_trash' => __('No TwoWheeler found in Trash', 'vehicles')
            ),
            'public' => true,
            'hierarchical' => true, // Allows your posts to behave like Hierarchy Pages
            'has_archive' => true,
            'supports' => array(
                'title',
                'editor',
                'excerpt',
                'thumbnail'
            ), // Go to Dashboard Custom HTML5 Blank post for supports
            'can_export' => true, // Allows export in Tools > Export
            'taxonomies' => array(
                'post_tag',
                'category'
            ) // Add Category and Post Tags support
        ));

}

add_action('init', 'create_post_type_two_wheeler');

现在我想显示Dropdown in admin添加/编辑“Two wheeler”自定义帖子类型的帖子 . 所以用户可以为该特定帖子选择该选项并将该选项保存在数据库中 .

任何谷歌链接，将帮助我做到这一点？我需要一种方法来开始这方面的工作 .