基于数量计算的产品类别的购物车折扣 [英] Cart discount for a product category based on quantity calculations

问题描述

我想向woocommerce添加一个功能，当将一个类别中的12-23个商品添加到购物车时，该功能将计算10％的折扣。

I wan to add a function to woocommerce that will calculate a 10% discount when 12-23 items from one category is added to the cart.

然后，如果24 -添加了该类别的47个商品，将有15％的折扣。

Then if 24 - 47 items of the category are added it would be a 15% discount.

最后，如果添加了该类别的48个以上的商品，将有20％的折扣。

Last if 48+ items from this category are added it would be a 20% discount.

实际代码例子太棒了，因为我是woocommerce的新手

actual code example would be awesome as I am new to woocommerce

推荐答案

已更新 — 更正了代码错误，并在输出的折扣文本中添加了增强功能

此处是挂钩在 woocommerce_cart_calculate_fees 挂钩，该挂钩将根据购物车项目数量计算为该特定类别（或子类别）提供折扣。

Here is the function hooked in woocommerce_cart_calculate_fees hook that is going to make the discount for that particular category (or subcategory too) based on cart item quantity calculations.

这是代码：

add_action( 'woocommerce_cart_calculate_fees', 'cart_items_quantity_wine_discount', 10, 1 );
function cart_items_quantity_wine_discount($cart_object) {

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

    // Set HERE your category (can be an ID, a slug or the name)
    $category = 34; // or a slug: $category = 'wine';

    $category_count = 0;
    $category_total = 0;
    $discount = 0;

    // Iterating through each cart item
    foreach($cart_object->get_cart() as $cart_item):

        if( has_term( $category, 'product_cat', $cart_item['product_id']) ):
            $category_count += $cart_item['quantity'];
            $category_total += $cart_item["line_total"]; // calculated total items amount (quantity x price)
        endif;

    endforeach;

    $discount_text = __( 'Quantity discount of ', 'woocommerce' );

    // ## CALCULATIONS ##
    if ( $category_count >= 12 && $category_count < 24 ) {
        $discount -= $category_total * 0.1; // Discount of 10% 
        $discount_text_output = $discount_text . '10%';
    } elseif ( $category_count >= 24 && $category_count < 48 ) {
        $discount -= $category_total * 0.15; // Discount of 15%
        $discount_text_output = $discount_text . '15%';
    } elseif ( $category_count >= 48 ) {
        $discount -= $category_total * 0.2; // Discount of 20%
        $discount_text_output = $discount_text . '20%';
    }

    // Adding the discount
    if ( $discount != 0 && $category_count >= 12 )
        $cart_object->add_fee( $discount_text_output, $discount, false );

    // Note: Last argument in add_fee() method is related to applying the tax or not to the discount (true or false)
}

注意： > add_fee（） 方法与应征税款还是不对折扣有关……

Note: Last argument in add_fee() method is related to applying the tax or not to the discount…

代码已经过测试并且功能齐全。

Code is tested and fully functional.

代码进入活动子主题（或主题）的function.php文件中。或也在任何插件php文件中。

其他类似：基于产品总数的某些类别的折扣

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