以下代码自动返回$cross_sells
属于产品类别的 ID(来自购物车中的产品)。
function filter_woocommerce_cart_crosssell_ids( $cross_sells, $cart ) {
// Initialize
$product_cats_ids = array();
$product_cats_ids_unique = array();
foreach ( $cart->get_cart() as $cart_item ) {
// Get product id
$product_id = $cart_item['product_id'];
// Get current product categories id(s) & add to array
$product_cats_ids = array_merge( $product_cats_ids, wc_get_product_term_ids( $product_id, 'product_cat' ) );
}
// Not empty
if ( !empty( $product_cats_ids ) ) {
// Removes duplicate values
$product_cats_ids_unique = array_unique( $product_cats_ids, SORT_REGULAR );
// Get product id(s) from a certain category, by category-id
$product_ids_from_cats_ids = get_posts( array(
'post_type' => 'product',
'numberposts' => -1,
'post_status' => 'publish',
'fields' => 'ids',
'tax_query' => array(
array(
'taxonomy' => 'product_cat',
'field' => 'id',
'terms' => $product_cats_ids_unique,
'operator' => 'IN',
)
),
) );
// Removes duplicate values
$cross_sells = array_unique( $product_ids_from_cats_ids, SORT_REGULAR );
}
return $cross_sells;
}
add_filter( 'woocommerce_cart_crosssell_ids', 'filter_woocommerce_cart_crosssell_ids', 10, 2 );
Note: 'numberposts' => -1
表示全部,这可以根据您的需求进行调整
极限 ('posts_per_page'
)可以通过设置woocommerce_cross_sells_total
过滤钩
function filter_woocommerce_cross_sells_total( $limit ) {
// Set limit
$limit = 4;
return $limit;
}
add_filter( 'woocommerce_cross_sells_total', 'filter_woocommerce_cross_sells_total', 10, 1 );