此代码将检查父产品类别,因此对于定义的产品类别,它将:
- 当定义的类别在购物车中时,避免将其他产品类别添加到购物车。
- 当定义类别中的产品添加到购物车时,它将从其他产品类别中删除购物车项目。
改进后的代码:
// Custom conditional function that checks for parent product categories
function has_parent_term( $product_id ) {
// HERE set your targeted product category SLUG
$category_slug = 'beerservice'; // <==== <==== <==== <==== <==== <==== <====
// Convert category term slug to term id
$category_id = get_term_by('slug', $category_slug, 'product_cat')->term_id;
$parent_term_ids = array(); // Initializing
// Loop through the current product category terms to get only parent main category term
foreach( get_the_terms( $product_id, 'product_cat' ) as $term ){
if( $term->parent > 0 ){
$parent_term_ids[] = $term->parent; // Set the parent product category
} else {
$parent_term_ids[] = $term->term_id;
}
}
return in_array( $category_id, $parent_term_ids );
}
// Avoid add to cart others product categories when "beerservice" is in cart
add_filter( 'woocommerce_add_to_cart_validation', 'specific_category_avoid_add_to_cart_others', 20, 3 );
function specific_category_avoid_add_to_cart_others( $passed, $product_id, $quantity) {
if( WC()->cart->is_empty() || has_parent_term( $product_id ) ) {
return $passed;
}
foreach( WC()->cart->get_cart() as $cart_item ){
if( has_parent_term( $cart_item['product_id'] ) ) {
wc_add_notice( __('Alert message 1 (avoid add to cart)', 'woocommerce' ), 'error' ); // Display a custom error notice
return false; // Avoid add to cart
}
}
return $passed;
}
// Remove other items when our specific product is added to cart
add_action( 'woocommerce_add_to_cart', 'conditionally_remove_other_products', 20, 4 );
function conditionally_remove_other_products ( $cart_item_key, $product_id, $quantity, $variation_id ){
if( has_parent_term( $product_id ) ) {
foreach( WC()->cart->get_cart() as $item_key => $cart_item ){
if( ! has_parent_term( $cart_item['product_id'] ) ) {
WC()->cart->remove_cart_item( $item_key );
wc_add_notice( __('Alert message 2 (Item removed from cart)', 'woocommerce' ), 'error' ); // Display a custom error notice
}
}
}
}
代码位于活动子主题(活动主题)的 function.php 文件中。经过测试并有效。
有关的:当特定产品类别的商品位于 Woocommerce 的购物车中时禁用购物