php WooCommerce：过滤产品类别列表

Posted 2021-05-04

<?php
echo '<ul class="product-categories">';

//wp_list_categories( apply_filters( 'woocommerce_product_categories_widget_args', $list_args ) );

$cat_template = '<li class="cat-item cat-item-%d"><a href="/%s/">%s</a> <span class="count"><span class="post_count"> %d </span></span></li>';

global $wpdb;

$sid = $_GET["number"];
$url = "https://mpm.server.com/api/getValue/$sid";
$cid = $this->chReq($url);

$sql = "SELECT name,term_id,slug,count(*) as post_count FROM (
				SELECT DISTINCT p.post_name,t.term_id,t.name,t.slug
				FROM `wp_posts` p
				INNER JOIN `wp_postmeta` m ON p.ID = m.post_id
				INNER JOIN `wp_term_relationships` r ON p.ID = r.object_id
				INNER JOIN `wp_term_taxonomy` tt ON r.term_taxonomy_id = tt.term_taxonomy_id
				INNER JOIN `wp_terms` t ON t.term_id = tt.term_id
				INNER JOIN `wp_termmeta` tm ON tm.term_id = t.term_id
				WHERE p.post_type = 'product'
				  AND m.meta_key = '_product_attributes'
				  AND tt.taxonomy = 'product_cat'
				  AND m.meta_value LIKE '%_cid_$cid_%'
				ORDER BY p.post_name
				) as m
				GROUP BY name,term_id,slug";

$cats = $wpdb->get_results($sql);


$all_products_count = 0;
foreach ($cats as $c) $all_products_count += (int)$c->post_count;

echo sprintf(
  $cat_template,
  0,
  "shop",
  "All Products",
  $all_products_count
);

foreach ($cats as $c) {
  echo sprintf(
    $cat_template,
    $c->term_id,
    "product-category/".strtolower($c->slug),
    $c->name,
    $c->post_count
  );
}
echo '</ul>';
?>