[英]Auto add a specific product to cart based on other cart items count in Woocommerce
I am trying to add a product called (Delivery Charge) to the cart based on how many products I have in the cart. 我正在尝试根据购物车中的产品数量将一个名为(交货费)的产品添加到购物车。
Cart Example: 购物车示例:
Product A (QTY 5) 产品A(数量5)
Product B (QTY 2) 产品B(数量2)
Product C (QTY 4) 产品C(QTY 4)
Delivery Charge (QTY 3) **This is 3 because that is the total line items it should be counting that was added to cart before the delivery charge product was added. 运费(数量3)**这是3,因为这是在添加运费产品之前添加到购物车中的应计数的总行项目。
Having troubles with my code: 我的代码遇到麻烦:
/* Function to get total Products (line items) not qty of each */
function count_item_in_cart() {
global $woocommerce;
$counter = 0;
foreach ($woocommerce->cart->get_cart() as $cart_item_key => $cart_item) {
$counter++;
}
return $counter;
}
/* Add DC (Delivery Charge Product) to Cart based on qty */
add_action( 'template_redirect', 'delivery_charge_add_product_to_cart' );
function delivery_charge_add_product_to_cart() {
/* Establish Product Delivery Charge Product ID */
global $woocommerce;
$product_id = 4490; /* Product ID to add to cart */
$quantity = count_item_in_cart();
if ($quantity > 0) {
WC()->cart->add_to_cart( $product_id, $quantity);
}
}
It always returns a higher number. 它总是返回一个更高的数字。 I think it is counting the QTY for each product and not actual product item.
我认为它是计算每个产品的数量,而不是实际的产品项目。
Any help would be appreciated! 任何帮助,将不胜感激!
The following code will auto add/update your additional product "Delivery charge" to cart each time a product is added to cart and will handle all possible cases: 每次将产品添加到购物车时,以下代码都会自动将您的附加产品“送货费用”添加/更新到购物车,并将处理所有可能的情况:
add_action( 'woocommerce_before_calculate_totals', 'add_delivery_charge_to_cart', 10, 1 );
function add_delivery_charge_to_cart( $cart ) {
if ( is_admin() && ! defined( 'DOING_AJAX' ) )
return;
if ( did_action( 'woocommerce_before_calculate_totals' ) >= 2 )
return;
$dcharge_id = 4490; // Product Id "Delivery charge" to be added to cart
$items_count = 0; // Initializing
// Loop through cart items
foreach ( $cart->get_cart() as $cart_item_key => $cart_item ) {
// Check if "Delivery charge" product is already in cart
if( $cart_item['data']->get_id() == $dcharge_id ) {
$dcharge_key = $cart_item_key;
$dcharge_qty = $cart_item['quantity'];
}
// Counting other items than "Delivery charge"
else {
$items_count++;
}
}
// If product "Delivery charge" is in cart, we check the quantity to update it if needed
if ( isset($dcharge_key) && $dcharge_qty != $items_count ) {
$cart->set_quantity( $dcharge_key, $items_count );
}
// If product "Delivery charge" is not in cart, we add it
elseif ( ! isset($dcharge_key) && $items_count > 0 ) {
$cart->add_to_cart( $dcharge_id, $items_count );
}
}
Code goes in functions.php file of your active child theme (or active theme). 代码位于活动子主题(或活动主题)的functions.php文件中。 Tested and works.
经过测试和工作。
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