如何以编程方式删除Woocommerce中应用的折扣券？

Question

我一直在寻找一段时间,但我找不到如何以程序方式删除woocommerce优惠券.

我正在尝试根据购物车总数制作折扣.我需要申请删除优惠券,因为如果你有价值1000欧元的产品(15%优惠券适用)并且删除产品并且只留下价值50欧元的产品,你仍然可以享受15%的折扣,因为我的代码没有删除已经申请的优惠券.

所以这是我现在的代码:

    add_action( 'woocommerce_before_cart', 'apply_matched_coupons' );

function apply_matched_coupons() {
    global $woocommerce;

$coupon_code5 = '5p'; // your coupon code here
$coupon_code10 = '10p'; // your coupon code here
$coupon_code15 = '15p'; // your coupon code here
$coupon_code20 = '20p'; // your coupon code here
$coupon_code25 = '25p'; // your coupon code here

   if ( $woocommerce->cart->has_discount( $coupon_code ) ){ 
return;
}

   if ( $woocommerce->cart->cart_contents_total >= 4000 ) {
        $woocommerce->cart->add_discount( $coupon_code25 );
        $woocommerce->show_messages();
    }
else if ( $woocommerce->cart->cart_contents_total >= 2000 ) {
        $woocommerce->cart->add_discount( $coupon_code20 );
        $woocommerce->show_messages();
    }
else if ( $woocommerce->cart->cart_contents_total >= 1000 ) {
        $woocommerce->cart->add_discount( $coupon_code15 );
        $woocommerce->show_messages();
    }
else if ( $woocommerce->cart->cart_contents_total >= 500 ) {
        $woocommerce->cart->add_discount( $coupon_code10 );
        $woocommerce->show_messages();
    }
else if ( $woocommerce->cart->cart_contents_total >= 200 ) {
        $woocommerce->cart->add_discount( $coupon_code5 );
        $woocommerce->show_messages();
    }
}

Answer 1

要使用优惠券代码从购物车中删除单张优惠券WC_Cart->remove_coupon( $code ).

要从购物车中删除所有优惠券,您将使用WC_Cart->remove_coupons( $type )- $type默认null为全部,通过"购物车"在税前优惠券之前删除,"订购"后税优惠券.

要获得购物车中的所有优惠券,array您可以循环并选择删除,请使用WC_Cart->get_coupons().

for ( WC()->cart->get_coupons as $code => $coupon ){
   $valid = ? // decide to remove or not
   if ( ! $valid ){
       WC()->cart->remove_coupon( $code );
   }
}

Answer 2

购物车方法remove_coupons()已经更新,因此不再需要类型.现在,要删除所有优惠券,这将解决问题:

WC()->cart->remove_coupons();

有关更多信息,请在此处查看 WC_Cart类的文档.