带有上一个和下一个术语链接的 WooCommerce 产品类别页面

WooCommerce product category pages with previous and next term links

我想自定义 WooCommerce 类别页面 (archive-product.php) 以显示当前产品类别,但我还想在页面某处创建指向上一个和下一个类别术语链接的上一个和下一个链接。

我尝试了很多解决方案,但都没有成功。我已经设法实现了一个采用实际类别 ID 的代码,我添加了 +1 和 -1 并且我能够创建链接,但最大的问题是当 'next link' 位于最后一个不是的类别时工作,不是链接的无限循环。即,如果我在第 6 页,那是我的最后一个类别,下一个应该是 1,上一个应该是 5,如果我在第一类别,上一个应该是 6,下一个应该是 2。

请在下面找到我正在使用并且可以正常工作但不是我需要的代码:

<?php
$taxonomy = 'product_cat';
$cate = get_queried_object();
$cateID = $cate->term_id;

$next_cateID = $cateID + 1;
$prev_cateID = $cateID - 1; 

$next_term_link = get_term_link( $next_cateID, $taxonomy );
$next_term = get_term( $next_cateID, $taxonomy );
$next_slug = $next_term->name;

$prev_term_link = get_term_link( $prev_cateID, $taxonomy );
$prev_term = get_term( $prev_cateID, $taxonomy );
$prev_slug = $prev_term->name;
?>

<p><a href="<?php echo $prev_term_link ?>"><?php echo $prev_slug; ?></a></p>
<p><a href="<?php echo $next_term_link ?>"><?php echo $next_slug; ?></a></p>

已更新:

您只需定义第一个和最后一个类别 ID。然后它将作为一个无限循环工作(假设您的产品类别术语是连续的):

<?php
if ( is_product_category() ) :
$taxonomy    = 'product_cat'; // WooCommerce product category taxonomy
$term_id     = get_queried_object_id(); // Current product category term Id

// Get first product category term Id
$query_args  = array('taxonomy' => 'product_cat', 'hide_empty' => false, 'orderby' => 'term_id', 'number' => '1', 'fields' => 'ids');
$term_id_1st = get_terms($query_args);
$term_id_1st = reset($term_id_1st);

// Get last product category term Id
$query_args['order'] = 'DESC';
$term_id_end  = get_terms($query_args);
$term_id_end  = reset($term_id_end);

$next_term_id = $term_id_end == $term_id ? $term_id_1st : $term_id + 1;
$prev_term_id = $term_id_1st == $term_id ? $term_id_end : $term_id - 1; 

$next_term_link = get_term_link( $next_term_id, $taxonomy );
$next_term      = get_term( $next_term_id, $taxonomy );

$prev_term_link = get_term_link( $prev_term_id, $taxonomy );
$prev_term      = get_term( $prev_term_id, $taxonomy );

?>
<p><a href="<?php echo $prev_term_link ?>"><?php echo $prev_term->name; ?></a></p>
<p><a href="<?php echo $next_term_link ?>"><?php echo $next_term->name; ?></a></p>
<?php endif; ?>

要获取最后一个类别,您可以尝试以下操作