当我在购物车中添加了特殊产品类别“cat_x”的商品并显示一些不同的自定义通知时,我使用下面的代码从购物车中删除其他WooCommerce产品类别商品.代码来自
this thread,效果很好：
add_action( 'woocommerce_check_cart_items','checking_cart_items' );
function checking_cart_items() {
$special = false;
$catx = 'cat_x';
$number_of_items = sizeof( WC()->cart->get_cart() );
if ( $number_of_items > 0 ) {
// Loop through all cart products
foreach ( WC()->cart->get_cart() as $cart_item_key => $values ) {
$item = $values['data'];
$item_id = $item->id;
// detecting if 'cat_x' item is in cart
if ( has_term( $catx,'product_cat',$item_id ) ) {
if (!$special)
$special = true;
}
}
// Re-loop through all cart products
foreach ( WC()->cart->get_cart() as $cart_item_key => $values ) {
$item = $values['data'];
$item_id = $item->id;
if ( $special ) // there is a 'cat_x' item in cart
{
if ( $number_of_items == 1 ) { // only one 'cat_x' item in cart
if ( empty( $notice ) )
$notice = '1';
}
if ( $number_of_items >= 2 ) { // 'cat_x' item + other categories items in cart
// removing other categories items from cart
if ( !has_term( $catx,$item_id ) ) {
WC()->cart->remove_cart_item( $cart_item_key ); // removing item from cart
if ( empty( $notice ) || $notice == '1' )
$notice = '2';
}
}
} else { // Only other categories items
if ( empty( $notice ) )
$notice = '3';
}
}
// Firing notices
if ( $notice == '1' ) { // message for an 'cat_x' item only (alone)
wc_add_notice( sprintf( '<p class="woocommerce-error">bla bla bla one category X item in the cart</p>' ),'success' );
} elseif ( $notice == '2' ) { // message for an 'cat_x' item and other ones => removed other ones
wc_add_notice( sprintf( '<p class="woocommerce-error">bla bla bla ther is already category X in the cart => Other category items has been removed</p>' ),'error' );
} elseif ( $notice == '3' ) { // message for other categories items (if needed)
wc_add_notice( sprintf( '<p class="woocommerce-error">bla bla bla NOT category X in the cart</p>' ),'success' );
}
}
}
条件函数has_term()是否也适用于类别数组,我尝试过而不是使用一个类别来设置该代码中的类别数组.但它不起作用.
但是,我的需求已经改变：我不想让顾客有可能选择不同类别的购物车商品.因此购物车必须始终包含来自同一产品类别的商品.
有什么帮助吗？
谢谢.
将一个自定义函数挂钩在woocommerce_add_to_cart_validation过滤器钩子中将以更简单的方式完成工作,而无需设置类别数组.
因此,您的代码将更加快速和紧凑.此外,您可以显示自定义通知以警告客户.
如果购物车中有不同类别的商品,此代码将避免添加到购物车：
add_filter( 'woocommerce_add_to_cart_validation','custom_checking_product_added_to_cart',10,3 );
function custom_checking_product_added_to_cart( $passed,$product_id,$quantity) {
// HERE Type your alert displayed message
$message = __( 'BLA BLA YOUR MESSAGE.','woocommerce' );
$product_cats_object = get_the_terms( $product_id,'product_cat' );
foreach($product_cats_object as $obj_prod_cat){
$product_cats[] = $obj_prod_cat->slug;
}
foreach (WC()->cart->get_cart() as $cart_item ){
if( ! has_term( $product_cats,$cart_item['product_id'] )) {
$passed = false;
wc_add_notice( $message,'error' );
break;
}
}
return $passed;
}
代码放在活动子主题(或主题)的function.PHP文件中,或者放在任何插件文件中.
此代码已经过测试,可以正常运行
Restricting cart items to be only from different product categories:
在功能中替换条件：
if( ! has_term( $product_cats,$cart_item['product_id'] )) {
通过
if( has_term( $product_cats,$cart_item['product_id'] )) {