Question

我正在经营一家WooCommerce商店，我们希望在您将产品明显添加到购物篮后，向每位客户提供将在购物篮中显示的免费赠品（电子书）。 / p>

例：
你添加＆＃34; product1＆＃34;到篮子里，篮子现在将显示2个产品。＆＃34; product1＆＃34;和＃34;免费赠品＆＃34;。当您从篮子中取出产品时，免费赠品将被再次移除。

我现在有了这个代码：

add_action( 'woocommerce_add_to_cart', 'check_freebie_exists', 10, 6 );
function check_freebie_exists($cart_item_key, $product_id, $quantity, $variation_id, $variation, $cart_item_data) {
    if($product_id == 1234) { // obviously replace this with the product that triggers the freebie
        /* or you could use
        if(has_term($cat_id, 'product_cat', $product_id)) { to check if a product is in a particular product_cat
        or you could check anything else related to the product
        */
        $hasfreebie = false;
        // loop through the cart to check the freebie is not already there
        global $woocommerce;
        $cart = $woocommerce->cart->get_cart();
        foreach($cart as $key => $values) {
            if($values['data']->id == $your_freebie_product_id) {
                $hasfreebie = true;
                break;
            }
        }
        if(!$hasfreebie) {
            $woocommerce->cart->add_to_cart($your_freebie_product_id);
        }
    }
}

add_action( 'woocommerce_cart_item_removed', 'remove_freebie', 10, 2 );
function remove_freebie( $cart_item_key, $cart ) {
    $hasmaster = false;
    $freebiekey = NULL;
    foreach($cart as $key => $values) {
        if($values['data']->id == 1234) { // check that we have the product that should trigger the freebie
            $hasmaster = true;
        } elseif($values['data']->id == $your_freebie_product_id) {
            $freebiekey = $key;
        }
    }
    if(!$hasmaster && $freebiekey) {
        $cart->remove_cart_item($freebiekey);
    }
}

但它似乎还没有发挥作用。

我做错了什么？

任何帮助都将非常感激。

Answer 1

更新2 - 2018年10月 - 改进和增强的代码（完全重新访问）

以下代码将首次添加到购物车时添加免费赠品。如果删除了所有其他购物车商品，免费赠品也将被删除：

add_action( 'woocommerce_before_calculate_totals', 'add_remove_freebie', 50, 1 );
function add_remove_freebie( $cart ) {

    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

    if ( did_action( 'woocommerce_before_calculate_totals' ) >= 2 )
        return;

    $freebie_id = 70; // <== HERE set the freebie product ID
    $has_others = false;

    // Loop through cart items
    foreach( $cart->get_cart() as $cart_item_key => $cart_item ) {
        // Added Woocommerce compatibility version
        $product_id = version_compare( WC_VERSION, '3.0', '<' ) ? $cart_item['data']->id : $cart_item['data']->get_id();

        if( $product_id == $freebie_id ) {
            // Freebie is in cart
            $freebie_key = $cart_item_key;
        } else {
            // Other items are in cart
            $has_others = true;
        }
    }
    // If freebie product is alone in cart we remove it
    if( ! $has_others && isset( $freebie_key ) ){
        $cart->remove_cart_item( $freebie_key );
    } elseif ( $has_others && ! isset( $freebie_key ) ) {
        $cart->add_to_cart($freebie_id);
    }
}

代码进入活动子主题（或活动主题）的function.php文件。经过测试和工作。

在Woocommerce中自动添加或删除购物车中的免费赠品

1 个答案: