WordPress功能使我的菜单消失 [英] Wordpress function makes my menu disappear

问题描述

我正在使用此功能使我的自定义帖子类型投资组合"显示在档案/类别/标签页上(在functions.php中):

I am using this function to make my custom post type "portfolio" show up on archives/category/tag pages (in functions.php):

function namespace_add_custom_types( $query ) {
  if( is_category() || is_tag() && empty( $query->query_vars['suppress_filters'] ) ) {
    $query->set( 'post_type', array('post', 'portfolio'));
      return $query;
    }
}
add_filter( 'pre_get_posts', 'namespace_add_custom_types' 

问题是由于某种原因，这使我的导航菜单消失了.这是导航菜单的代码(在header.php中):

The problem is that for some reason it is making my nav menu disappear. Here is the code for the nav menu (in header.php):

<?php wp_nav_menu(array( 'theme_location'  => 'primary', 'sort_column' => 'menu_order', 'menu_class' => 'nav-menu', 'container_class' => 'nav-menu',) ); ?>

知道我可以改变什么吗?

Any idea what I can change?

推荐答案

WordPress导航菜单由 nav_menu_item 帖子类型的帖子组成，随着函数更改所有查询的帖子类型，无内容显示.

WordPress nav menus consist of posts of the nav_menu_item post type, and as your function changes the post type for all queries, there is nothing to display.

解决方案:通过选中 is_main_query 仅修改主查询，例如:

Solution: modify only the main query by checking is_main_query, e.g.:

if( is_category() && $query->is_main_query() ) {
    // do stuff
}

PS: pre_get_posts 是一个 action 挂钩，因此您应该使用 add_action 而不是 add_filter :

PS: pre_get_posts is an action hook, so you should use add_action instead of add_filter:

add_action( 'pre_get_posts', 'namespace_add_custom_types' );

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