Question

我有一种便宜的产品。仅当购物车小计为200或更多时，我才愿意放弃该产品。

如果购物车小计为200或更多，请将产品添加到购物车并将价格设置为0。

如果购物车小计小于200，请从购物车中移除产品。

在添加和删除时，我会使用通知告知客户。除了更改产品价格外，一切都按计划进行。

如果有人可以查看我正在使用的代码并解决这一问题，我将非常感激。

add_action( 'woocommerce_before_calculate_totals', 'free_product_if_cart_minimum', 10, 1 );
function free_product_if_cart_minimum( $cart ) {

    // go away if admin
    if (is_admin() && !defined( 'DOING_AJAX' )) return;

    // say no to hook repetition 
    if (did_action( 'woocommerce_before_calculate_totals' ) >= 2 ) return;

    $minimum_amount = 200;
    $free_product_id = 4576;
    $cart_items_total = 0;

    // cart loop
    foreach ( $cart->get_cart() as $cart_item_key => $cart_item ){
    
        // is the free product there?
        if ( $cart_item['data']->get_id() == $free_product_id ) {
        
            $free_item_key = $cart_item_key;

        // set the price to zero
        // I've tried them both without success
        
        // $free_item_key->set_price( 0 );
        // $free_product_id->set_price( $price * 0.00 );
    }
    
    // cart subtotal incl. tax and discounts
    $cart_items_total += $cart_item['line_total'] + $cart_item['line_tax'];
    
    }

    // add the free product if not already there
    if ( $cart_items_total >= $minimum_amount && !isset( $free_item_key ) ) {

        $cart->add_to_cart( $free_product_id );

        wc_add_notice( 'Thank you! Here\'s your free product.', 'notice' );
    }

    // if below the minimum, remove the free product
    elseif ( $cart_items_total < $minimum_amount && isset( $free_item_key ) ) {

        $cart->remove_cart_item( $free_item_key );

        // display notice after removal
        wc_add_notice( 'Your cart subtotal is less than 200 and therefore, the free product was removed.', 'notice' );
    }
}

Answer 1

以下将完成工作，将购物车中的免费产品价格设置为零：

add_action( 'woocommerce_before_calculate_totals', 'conditionally_add_free_product' );
function conditionally_add_free_product( $cart ) {
    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

    // Settings
    $minimum_amount   = 200;
    $free_product_id  = 4576;

    // Initializing
    $cart_subtotal = 0;
    $cart_items    = $cart->get_cart();

    // Loop through cart items (first loop)
    foreach ( $cart_items as $cart_item_key => $cart_item ){
        // When free productis is cart
        if ( $cart_item['data']->get_id() == $free_product_id ) {
            $free_item_key = $cart_item_key; // Free product found (get its cart item key)

            $cart_item['data']->set_price(0);
        }
        // Get cart subtotal incl. tax and discounts (excluding free product)
        else {
            $cart_subtotal += $cart_item['line_total'] + $cart_item['line_tax'];
        }
    }

    // When cart total is up to the minimum amount, add the free product if not already there
    if ( $cart_subtotal >= $minimum_amount && ! isset($free_item_key) ) {
        $cart_item_key = $cart->add_to_cart( $free_product_id );

        // display notice after removal
        wc_add_notice( __("Thank you! Here's your free product."), 'notice' );
    }
    // if below the minimum, remove the free product
    elseif ( $cart_subtotal < $minimum_amount && isset( $free_item_key ) ) {

        $cart->remove_cart_item( $free_item_key );

        // display notice after removal
        wc_add_notice( sprintf(
           __("Your cart subtotal is less than %s and therefore, the free product was removed."), wc_price($cart_subtotal)
        ), 'notice' );
    }
}

代码进入活动子主题（或活动主题）的functions.php文件中。经过测试，可以正常工作。

针对WooCommerce中特定购物车小计的免费赠品

1 个答案: