问从Woocommerce主页上的快捷代码隐藏正在销售的产品

EN

add_filter( 'woocommerce_product_query_meta_query', 'on_sale_products_not_in_archives', 10, 2 );
function on_sale_products_not_in_archives( $meta_query, $query ) {
    // For woocommerce shop pages
    if( is_page( 87 ) ){
        $meta_query[] = array(
            'key'     => '_sale_price',
            'value'   => '',
            'compare' => '=',
       );
    }
    return $meta_query;
}