说我有以下分类法术语： ？

例如：

Term 1
  Term 1.1
  Term 1.2
Term 2
  Term 2.1


也给我分配了条款1.1和1.2的帖子。谢谢。

#1 楼

在/wp-includes/taxonomy.php中查看WP_Tax_Query类时，我发现有一个'include_children'选项，默认为true。我使用以下命令修改了原始的get_posts（）调用，它非常有用：
$pages = get_posts(array(
  'post_type' => 'page',
  'numberposts' => -1,
  'tax_query' => array(
    array(
      'taxonomy' => 'taxonomy-name',
      'field' => 'term_id', 
      'terms' => 1, /// Where term_id of Term 1 is "1".
      'include_children' => false
    )
  )
));

更多查询参数的列表：https://developer.wordpress.org/reference/classes/wp_query/#taxonomy参数

评论

从链接到的法典页面上读取，我认为tax_query数组中“字段”的值应为“ term_id”而不是“ id”：“可能的值为“ term_id”，“ name”和“ slug”。默认值为'term_id'。”我猜'id'只起作用，因为它会导致回退到默认值。

–贾尼·乌西塔洛（Jani Uusitalo）
2015年9月26日在9:22

#2 楼

前几天刚遇到：

$tax = 'music';
$oterm = 'pop';
$term = get_term_by('slug', $oterm, $tax);
$termChildren = get_term_children($term->term_id, $tax);
$wp_query = new WP_Query();
$wp_query->query(
    array(
        'posts_per_page' => '5',
        'tax_query' => array(
            array(
                'taxonomy' => $tax,
                'field' => 'slug',
                'terms' => $oterm
            ),
            array(
                'taxonomy' => $tax,
                'field' => 'id',
                'terms' => $termChildren,
                'operator' => 'NOT IN'
            )
        )
    )
);


源：
http://return-true.com/2011/08/wordpress-display-posts一个术语，没有显示来自儿童术语的帖子/

#3 楼

这是完整的代码，希望对您有所帮助。谢谢

<?php 
$terms_array = array( 
  'taxonomy' => 'services', // you can change it according to your taxonomy
  'parent'   => 0 // If parent => 0 is passed, only top-level terms will be returned
);
$services_terms = get_terms($terms_array); 
foreach($services_terms as $service): ?>
<h4><?php echo $service->name; ?></h4>
<?php 
$post_args = array(
      'posts_per_page' => -1,
      'post_type' => 'service', // you can change it according to your custom post type
      'tax_query' => array(
          array(
              'taxonomy' => 'services', // you can change it according to your taxonomy
              'field' => 'term_id', // this can be 'term_id', 'slug' & 'name'
              'terms' => $service->term_id,
          )
      )
);
$myposts = get_posts($post_args); ?>
<ul>
<?php foreach ( $myposts as $post ) : setup_postdata( $post ); ?>
  <li>
    <a href="<?php the_permalink(); ?>"><?php the_title(); ?></a>
  </li>
<?php endforeach; // Term Post foreach ?>
</ul>
<?php wp_reset_postdata(); ?>

<?php endforeach; // End Term foreach; ?>


#4 楼

用作运算符'IN'并有效

'taxonomy'=>'collections'，
'terms'=> array（28），
'field'=> 'id'，
'operator'=>'IN'