我已经设置了一个按预期工作的自定义帖子类型：

add_action( \'init\', __NAMESPACE__ . \'\\\\work_post_type\' );
function work_post_type() {
    // set up labels
    $labels = array(
        \'name\' => \'Work\',
        \'singular_name\' => \'Work\',
        \'add_new\' => \'Add New Work\',
        \'add_new_item\' => \'Add New Work\',
        \'edit_item\' => \'Edit Work\',
        \'new_item\' => \'New Work\',
        \'all_items\' => \'All Work\',
        \'view_item\' => \'View Work\',
        \'search_items\' => \'Search Work\',
        \'not_found\' =>  \'No Work Found\',
        \'not_found_in_trash\' => \'No Work found in Trash\', 
        \'parent_item_colon\' => \'\',
        \'menu_name\' => \'Work\',
    );
    //register post type
    register_post_type( \'work\', array(
        \'labels\' => $labels,
        \'has_archive\' => true,
        \'public\' => true,
        \'supports\' => array( \'title\', \'editor\', \'excerpt\', \'thumbnail\'),
        \'taxonomies\' => array( \'client\', \'category\' ),    
        \'exclude_from_search\' => false,
        \'publicly_queryable\' => true,
        \'show_in_nav_menus\' => true,
        \'show_ui\' => true,
        \'capability_type\' => \'post\',
        \'rewrite\' => array( \'slug\' => \'work\' ),
        )
    );
}

如你所见，我已经包括category 作为此自定义帖子类型的分类。我添加了两个在网站上使用的类别。但是，如果我转到我添加的任何类别的存档，它不会返回任何帖子，尽管有相关的帖子。是因为它是一种自定义的帖子类型，而查询无法识别它吗？

我觉得奇怪的是我自定义的分类法client 效果很好。

function wpse241719_add_custom_types_to_category_archives( $query ) {
    if ( ! is_admin() && is_category() && $query->is_main_query() ) {
        $query->set( \'post_type\', array(
                         \'post\',
                         \'work\',
                         // \'another_post_type\',
                    ) );
    }
}
add_filter( \'pre_get_posts\', \'wpse241719_add_custom_types_to_category_archives\' );