根据商品数量有条件地按购物车商品添加折扣

问题描述

我已经开设了一家Woocommerce商店，希望对所有产品设置特定的折扣，折扣为12(盒)的倍数.我尝试了许多折扣插件，但没有找到我想要的东西.

I have set up a Woocommerce shop and wish to set up a specific discount on all products based on multiples of 12 (a box). I've tried many discount plugins but haven't found what I am looking for.

例如，如果我订购12件产品X，我将获得10％的折扣.如果我订购15个产品X，则前12个产品可享受10％的折扣，而后三个价格为全价.如果我订购24件，则该10％的折扣适用于产品X的全部24件.

For example, if I order 12 of product X, I get a 10% discount. If I order 15 of product X, I get a 10% discount on the first 12, and the last three are full price. If I order 24, then that 10% discount applies to all 24 of product X.

我找到的最接近的是:

The closest I have found is this: Discount for Certain Category Based on Total Number of Products

但这是最后的折扣(实际上是负费用)，我想像正常折扣一样在产品旁边的购物车中显示折扣.

But this is applied as a discount (actually a negative fee) at the end, and I'd like to display the discount in the cart next to the product, like normal discounts.

如果产品已经开始销售，我还需要禁用此折扣.

谢谢.

推荐答案

请参阅:基于Woocommerce 3中的数量:

是的，通过使用 woocommerce_before_calculate_totals 动作挂钩.

Yes this is also possible, making a custom calculation for each cart item and replacing individually their price (matching your conditions and calculations), using a custom function hooked in woocommerce_before_calculate_totals action hook.

这是代码:

add_action( 'woocommerce_before_calculate_totals', 'custom_discounted_cart_item_price', 10, 1 );
function custom_discounted_cart_item_price( $cart_object ) {

    $discount_applied = false;

    // Set Here your targeted quantity discount
    $t_qty = 12;

    // Iterating through each item in cart
    foreach ( $cart_object->get_cart() as $item_values ) {

        ##  Get cart item data
        $item_id = $item_values['data']->id; // Product ID
        $item_qty = $item_values['quantity']; // Item quantity
        $original_price = $item_values['data']->price; // Product original price

        // Getting the object
        $product = new WC_Product( $item_id );


        // CALCULATION FOR EACH ITEM 
        // when quantity is up to the targetted quantity and product is not on sale
        if( $item_qty >= $t_qty && !$product->is_on_sale() ){
            for($j = $t_qty, $loops = 0; $j <= $item_qty; $j += $t_qty, $loops++);

            $modulo_qty = $item_qty % $t_qty; // The remaining non discounted items

            $item_discounted_price = $original_price * 0.9; // Discount of 10 percent

            $total_discounted_items_price = $loops * $t_qty * $item_discounted_price;

            $total_normal_items_price = $modulo_qty * $original_price;

            // Calculating the new item price
            $new_item_price = ($total_discounted_items_price + $total_normal_items_price) / $item_qty;


            // Setting the new price item
            $item_values['data']->price = $new_item_price;

            $discount_applied = true;
        }
    }
    // Optionally display a message for that discount
    if ( $discount_applied )
        wc_add_notice( __( 'A quantity discount has been applied on some cart items.', 'my_theme_slug' ), 'success' );
}

(可选)当某些购物车项目享受折扣时，我会显示一条通知...

Optionally I display a notice when a discount is applied to some cart items…

代码会出现在您活动的子主题(或主题)的function.php文件中，也可能会出现在任何插件文件中.

此代码已经过测试并且可以正常工作.

This code is tested and works.

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