所以我用Woo Brand插件来显示我在我的商店里使用的所有品牌。 我想做的是限制顾客一次从几个品牌购买。 例如，如果我有品牌A和品牌B，客户可以只从品牌A或只从品牌B添加产品到购物车。如果他们的篮子里只有品牌A的产品，他们从品牌B转到页面，在品牌B的页面上我想有一个新的篮子，在这个篮子里他们只能添加品牌B的产品。如果他们从品牌A返回页面，他们的篮子里仍然有只从品牌A添加的产品。我如何实现这一点？
目前我有这段代码，可以添加在购物车只从一个特定的品牌，例如（如果我在品牌一页，我可以添加只从他们）
add_filter( 'woocommerce_add_to_cart_validation', 'only_one_product_brand_allowed', 20, 3 );
function only_one_product_brand_allowed( $passed, $product_id, $quantity) {
// Getting the product brand term slugs in an array for the current product
$brand_slugs = wp_get_post_terms( $product_id, 'product_brand', array( 'fields' => 'slugs' ) );
$cart_contents = WC()->cart->get_cart();
$cart_item_keys = array_keys ( $cart_contents );
// Get the brand name for first item from cart
$first_item = $cart_item_keys[0];
$first_item_id = $cart_contents[$first_item]['product_id'];
$brand_name = get_the_terms($first_item_id, 'product_brand');
$current_product_brand = get_the_terms($product_id, 'product_brand');
// Loop through cart items
foreach ($cart_contents as $cart_item_key => $cart_item ){
// Check if the product category of the current product don't match with a cart item
if( ! has_term( $brand_slugs, 'product_brand', $cart_item['product_id'] ) ){
// phpAlert('Trebuie golit cosul');
// Displaying a custom notice
wc_add_notice( __('You can add products to the cart only from the same brand. In your cart are products from <strong>'.$brand_name[0]->name. '.' ), 'error' );
// Avoid add to cart
return false; // exit
}
}
return $passed;
}
您不能在WooCommerce中为每个产品品牌设置不同的购物篮（购物车），您只能避免客户组合不同品牌的商品，并优化您的代码，如:
add_filter( 'woocommerce_add_to_cart_validation', 'only_one_product_brand_allowed', 20, 3 );
function only_one_product_brand_allowed( $passed, $product_id, $quantity) {
$taxonomy = 'product_brand';
$field_names = array( 'fields' => 'names');
// Getting the product brand term name for the current product
if( $term_name = wp_get_post_terms( $product_id, $taxonomy, $field_names ) ) {
$term_name = reset($term_name);
} else return $passed;
// Loop through cart items
foreach (WC()->cart->get_cart() as $cart_item ){
// Get the cart item brand term name
if( $item_term_name = wp_get_post_terms( $cart_item['product_id'], $taxonomy, $field_names ) ) {
$item_term_name = reset($item_term_name);
} else continue;
// Check if the product brand of the current product exist already in cart items
if( isset($term_name) && isset($item_term_name) && $item_term_name !== $term_name ){
// Displaying a custom notice
wc_add_notice( sprintf( __("You are not allowed to combine products from different brands. There is already a cart item from <strong>%s</strong> brand.", "woocommerce" ), $item_term_name ), 'error' );
// Avoid add to cart and display message
return false;
}
}
return $passed;
}
代码放在活动子主题（或活动主题）的function.php文件中。 经过测试并正常工作。
现在你可以做的是在多个子订单中吐出一个订单，每个品牌（或商家）一个，保留你的原始订单。
