WordPress的tax_query“和"操作员无法按预期运行 [英] Wordpress tax_query "and" operator not functioning as expected

问题描述

我有一个图片的自定义帖子类型，其自定义分类名为 image_tag (类似于类别，是分层的).以下是一些可能使用的标签示例:

I have a custom post type of image with a custom taxonomy called image_tag (it's hierarchical like categories). Here are some examples of the tags that might be used:

Structure (id: 25)
- House (id: 56)
- Skyscraper
Nature
- Animal
- Plant (id: 41)

因此，我想通过与"and"运算符一起选择多个标签来对图像进行细化.例如，查找带有植物和房屋的所有照片.

So, I want to drill down through the images by selecting multiple tags in conjunction with the "and" operator. For example, finding all photos with plants and houses.

$query_args = array(
  'post_type' => 'image',
  'tax_query' => array(
    array(
      'taxonomy' => 'image_tag',
      'terms' => array(41, 56),    // IDs of "plant" and "house"
      'operator' => 'and',
    ),
  ),
);

那很好，当我尝试添加父项时，问题就开始了，例如:

That works fine, the problem begins when I try to include the parent terms, for example:

$query_args = array(
  'post_type' => 'image',
  'tax_query' => array(
    array(
      'taxonomy' => 'image_tag',
      'terms' => array(25, 41),    // IDs of "structure" and "plant"
      'operator' => 'and',
    ),
  ),
);

然后我没有结果.我猜测是因为我使用的是和"运算符，所以Wordpress不包括结构"一词的子代.有谁知道我如何使它工作?

Then I get no results. I'm guessing that because I'm using the "and" operator, Wordpress doesn't include the children of the "Structure" term. Does anyone have an idea how I can get this to work?

推荐答案

所以它应该看起来像这样:

So it should look like this:

'relation' => 'AND',
   array(
         'taxonomy' => 'image_tag',
          'field'    => 'term_id',
          'terms'    => array( 25 ),
         ),
         array(
         'taxonomy' => 'image_tag',
          'field'    => 'term_id',
          'terms'    => array( 41 ),
          ),
        ),

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