我编写了一些代码，用于在基于产品类别的产品详细信息页面上显示自定义缺货消息。
function custom_backorder_message( $text, $product ){
if ( $product->managing_stock() && $product->is_on_backorder( 1 ) ) {
if( has_term( 'bridal-line', 'product_cat' ) ) {
$text = __( 'Your piece will be handcrafted for you. Upon order we will manufacture your piece of eternity. Sadly, we can not give you a timeline, due to Covid 19, but are expecting 5-7 weeks', 'text-domain' );
}else {
$text = __( 'This product is currently out of stock, but upon order we will handcraft your piece. …