修复 WooCommerce 中购物车百分比的最大优惠券折扣

Question

我在 woocommerce 中有一个优惠券代码 (XYZ25)，其中包含 25% 的折扣，最大折扣为 Rs.250。

如果用户使用优惠券代码 XYZ25 获得 25% 的折扣，我如何限制他们获得不超过 250 卢比的折扣。

Answer 1

Since Woocommerce 3.2 or 3.3, this code doesn't work anymore

您可以根据 **[=12= 的固定购物车折扣设置额外的优惠券FIX250代码 ]（不含税）并且 最低消费为 (4 x 250) = RS.1000。

然后在下面脚本的帮助下，如果客户应用了您的 XYZ25 优惠券代码并且购物车总计达到 Rs。 1000，会用FIX250代替XYZ25优惠券，同时显示一条解释性提示...

代码如下：

add_action( 'woocommerce_calculate_totals', 'coupon_discount_max_switch', 10, 1); function coupon_discount_max_switch( $cart_obj ) { if ( is_admin() && ! defined( 'DOING_AJAX' ) ) return; // Set HERE your 2 coupons slugs <=== <=== <=== <=== <=== <=== <=== <=== <=== $coupon_25_percent = 'xyz25'; $coupon_25_fixed = 'fix250'; // Set HERE the limit amount <=== <=== <=== <=== <=== <=== <=== <=== <=== <=== $limit = 250; // Without VAT $total_discount = $cart_obj->get_cart_discount_total(); // Total cart discount // When 'xyz25' is set and the total discount is reached if( $cart_obj->has_discount( $coupon_25_percent ) && $limit_icl_vat <= $total_discount ){ // Remove the 'xyz25' coupon $cart_obj->remove_coupon( $coupon_25_percent ); // Checking that the fixed dicount is not already set. if( ! $cart_obj->has_discount( $coupon_25_fixed ) ){ // Add the 'fix250' coupon $cart_obj->add_discount( $coupon_25_fixed ); // Displaying a custom message $message = __( "The cart discount limit of Rs.$limit is reached", "woocommerce" ); wc_add_notice( $message, 'notice' ); } } }

代码进入您的活动子主题（或主题）的 function.php 文件或任何插件文件。

此工作代码已在 WooCommerce 版本 2.6.x 和 3.0+.
上进行测试

Answer 2

正如@LoicTheAztec 指出的那样。它可以是固定折扣，也可以是百分比折扣。

代码如下：

add_filter( 'woocommerce_coupon_get_discount_amount', 'woocommerce_coupon_get_discount_amount', 20, 5 );
function woocommerce_coupon_get_discount_amount( $discount, $discounting_amount, $cart_item, $single, $coupon ) {

    $max_discount = 250; // coupon limit
    $coupon_code = 'XYZ25'; // coupon to check.

    if ( ( $coupon->get_code() == $coupon_code ) && ! is_null( $cart_item ) && WC()->cart->subtotal_ex_tax ) {

        $cart_item_qty = is_null( $cart_item ) ? 1 : $cart_item['quantity'];
        if ( wc_prices_include_tax() ) {
            $discount_percent = ( wc_get_price_including_tax( $cart_item['data'] ) * $cart_item_qty ) / WC()->cart->subtotal;
        } else {
            $discount_percent = ( wc_get_price_excluding_tax( $cart_item['data'] ) * $cart_item_qty ) / WC()->cart->subtotal_ex_tax;
        }
        $_discount = ( $max_discount * $discount_percent ) / $cart_item_qty;

        $discount = min( $_discount, $discount );
    }

    return $discount;
}

这也将使用 "Fixed cart discount" 逻辑计算折扣；并使用 $max_discount 作为优惠券金额进行计算。然后两者中较小的那个用完。

简单来说，就拿这个例子来说吧min( A, B )。 A为最大折扣，B为百分比折扣计算结果。

分钟( 250, 100 ) = 100
分钟 ( 250, 150 ) = 150
分钟 ( 250, 250 ) = 250
分钟 ( 250, 300 ) = 250
分钟 ( 250, 600 ) = 250

因此总能获得所需的最大折扣。
I have written more code relating to this here.

更新另一种方法，但结果相同。

add_filter( 'woocommerce_coupon_get_discount_amount', 'woocommerce_coupon_get_discount_amount', 20, 5 );
function woocommerce_coupon_get_discount_amount( $discount, $discounting_amount, $cart_item, $single, $coupon ) {

    $fake_code = 'fake_code_abcdefghigklmnopqrstuvwxyz'; // used to ignore this filter
    if ( $coupon->get_code() == $fake_code ) return $discount;

    $max_discount = 250; // coupon limit
    $coupon_code = 'XYZ25'; // coupon to check.

    if ( $coupon->get_code() == $coupon_code )  {

        $_coupon = new WC_Coupon( ); // lets create a fake coupon to test our $max_discount.
        $_coupon->set_props( array(
            'discount_type' => 'fix_cart',
            'amount'        => $max_discount,
            'code'          => $fake_code
        ) );

        $_discount = $_coupon->get_discount_amount( $discounting_amount, $cart_item, $single );

        $discount = min( $_discount, $discount );

    }

    return $discount;
}

修复 WooCommerce 中购物车百分比的最大优惠券折扣

Fix maximum coupon Discount On Cart percentage in WooCommerce

php

woocommerce

cart

coupon

discount