Question

这看起来应该很容易，但我还没能找到任何关于它的帖子。

我可以显示与产品或顶级类别相关联的所有类别，但您如何仅回显产品的最低/最深类别？

Cat-A [x]
  Cat-B [x]
    Cat-C [x]
  Cat-D [ ]
Cat-E [ ]
  Cat-F [ ]
    Cat-G [ ]
      Cat-H [ ]

如果这个例子是产品的祖先，那么我想打印的就是＆＃34; Cat-C＆＃34;。

但我不想像其他解决方案一样手动设置类别级别，我希望它始终打印最低的孩子，存档页面上的产品或单个产品页面。

知道如何/应该如何做到这一点？

Answer 1

尝试类似：

// get all product cats for the current post
$categories = get_the_terms( get_the_ID(), 'product_cat' ); 

// wrapper to hide any errors from top level categories or products without category
if ( $categories && ! is_wp_error( $category ) ) : 

    // loop through each cat
    foreach($categories as $category) :
      // get the children (if any) of the current cat
      $children = get_categories( array ('taxonomy' => 'product_cat', 'parent' => $category->term_id ));

      if ( count($children) == 0 ) {
          // if no children, then echo the category name.
          echo $category->name;
      }
    endforeach;

endif;

Answer 2

我终于在https://wordpress.stackexchange.com/a/55921/59863找到了anwser我为woocommerce添加了适当的分类法，并在底部添加了foreach / echo以吐出名称。

//Get all terms associated with post in woocommerce's taxonomy 'product_cat'
$terms = get_the_terms( $post->ID, 'product_cat' );

//Get an array of their IDs
$term_ids = wp_list_pluck($terms,'term_id');

//Get array of parents - 0 is not a parent
$parents = array_filter(wp_list_pluck($terms,'parent'));

//Get array of IDs of terms which are not parents.
$term_ids_not_parents = array_diff($term_ids,  $parents);

//Get corresponding term objects.
$terms_not_parents = array_intersect_key($terms,  $term_ids_not_parents);

//Extract the name of the category from the array and post it.
foreach($terms_not_parents as $term_not_parent)
echo $term_not_parent->name;

此代码的唯一缺点是，如果产品只有1个类别，父值为0，它将会中断。我目前不需要这个功能，但是我会回来修复一个“if null，而不是”。

在woocommerce中显示当前产品的最深的子类别

2 个答案: