WC_Query::get_main_tax_query PHP Метод

    public static function get_main_tax_query()
    {
        global $wp_the_query;
        $tax_query = isset($wp_the_query->tax_query, $wp_the_query->tax_query->queries) ? $wp_the_query->tax_query->queries : array();
        return $tax_query;
    }

 /**
  * Count products after other filters have occured by adjusting the main query.
  * @param  int $rating
  * @return int
  */
 protected function get_filtered_product_count($rating)
 {
     global $wpdb;
     $tax_query = WC_Query::get_main_tax_query();
     $meta_query = WC_Query::get_main_meta_query();
     // Unset current rating filter
     foreach ($meta_query as $key => $query) {
         if (!empty($query['rating_filter'])) {
             unset($meta_query[$key]);
         }
     }
     // Set new rating filter
     $meta_query[] = array('key' => '_wc_average_rating', 'value' => $rating, 'compare' => '>=', 'type' => 'DECIMAL', 'rating_filter' => true);
     $meta_query = new WP_Meta_Query($meta_query);
     $tax_query = new WP_Tax_Query($tax_query);
     $meta_query_sql = $meta_query->get_sql('post', $wpdb->posts, 'ID');
     $tax_query_sql = $tax_query->get_sql($wpdb->posts, 'ID');
     $sql = "SELECT COUNT( {$wpdb->posts}.ID ) FROM {$wpdb->posts} ";
     $sql .= $tax_query_sql['join'] . $meta_query_sql['join'];
     $sql .= " WHERE {$wpdb->posts}.post_type = 'product' AND {$wpdb->posts}.post_status = 'publish' ";
     $sql .= $tax_query_sql['where'] . $meta_query_sql['where'];
     return absint($wpdb->get_var($sql));
 }