WordPress的：查询没有分配分类法的帖子 [英] Wordpress: Query Posts without allocated taxonomies

问题描述

我想按自定义分类法（由url指定）的特定术语过滤所有帖子查询。目前，我正在使用add_filter（'request'，...）和'tax_query'，它们现在可以使用。

I would like to filter all post queries by a specific term of a custom taxonomy (specified by an url). Currently I'm using add_filter('request', ...) and 'tax_query', which kind of works now.

所以我得到了这个词的所有帖子，但是我想得到这些职位，而这些职位没有为该分类法分配任何术语。

So I get all posts of this term, but I would like to get those posts, which do not have ANY terms allocated of this taxonomy.

我正在尝试类似的操作：

I was trying something like:

$request['tax_query'] = array(
    'relation' => 'OR',
    array(
        'taxonomy' => 'brand',
        'field' => 'slug',
        'terms' => array( $term )
    ),
    array(
        'taxonomy' => 'brand',
        'field' => 'slug',
        'terms' => NULL,
        'operator' => 'IS'
    ),
);

但是，由于Wordpress不支持 IS或 IS NULL，因此不起作用

But, since Wordpress doesn't support 'IS' or 'IS NULL' this doesn't work either.

那么，有什么主意如何查询一个词的帖子和根本没有一个词的帖子？

So, any idea how to query for posts of a term AND posts without a term at all?

编辑：另一种解决方案是查询所有术语，然后在tax_query中排除它。但我想保存此查询。

Another solution would be to query all terms, an exclude it then in tax_query. But I would like to save this query.

推荐答案

query_posts( array( 'post_type' => 'discography', 'new taxanomy name' => 'created taxonomy' ) );

有关自定义帖子类型和自定义分类的指南。

This guide for custom post type and custom taxonomy.

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