具有自定义折扣的Woocommerce自定义优惠券类型始终返回0;

Question

我想要做的是创建自定义优惠券类型与使用钩子的woocommerce自定义编程折扣.这就是我的代码

//add new coupon type called "custom_discount"
function custom_discount_type( $discount_types ) {
    $discount_types['custom_discount'] =__( 'custom discount', 'woocommerce' );
    return $discount_types;
    }

// add the hooks
add_filter( 'woocommerce_coupon_discount_types', 'custom_discount_type',10, 1);

//function to get coupon amount for "custom_discount"
function woocommerce_coupon_get_discount_amount($discount, $discounting_amount, $cart_item, $single, $coupon) {
        if ($coupon->type == 'custom_discount'){ //if $coupon->type == 'fixed_cart' or 'percent' or 'fixed_product' or 'percent_product' The code Works
            $discount = 85;
            return $discount;
            } else {
             return $discount;
            }
        }
//add hook to coupon amount hook
add_filter('woocommerce_coupon_get_discount_amount', 'woocommerce_coupon_get_discount_amount', 10, 5);

优惠券总是以0(零)折扣金额返回.我错过了什么.谢谢你的帮助=)

Answer 1

好的,所以这个主题让我走上了制作自己的优惠券类型的道路,所以我想我应该回答它来帮助别人.

我尝试了你的代码,并想知道为什么任何普通的优惠券在删除按钮之前显示" - £xx",但自定义优惠券类型只是lank,没有减号,没有英镑符号空.原来这是WooCommerce如何验证购物车产品优惠券的问题.如果优惠券有效,无论购物车中的商品是否有效,它都会生效.

您的优惠券必须对产品有效且有效,或对整个购物车有效.但是,当Woocommerce检查您的产品是否对产品有效时,它只会检查优惠券类型是否为fixed_product'percent_product'.如果它是其他任何东西它运行woocommerce_coupon_is_valid_for_product挂钩与现有数据但默认为false,所以你的woocommerce_coupon_get_discount_amount钩子不会触发.

因此,您需要挂钩woocommerce_coupon_is_valid_for_product并验证产品以确保其有效.在我的情况下,我只是复制了默认的有效函数并更改$this为$coupon.

// Check if coupon is valid for product
add_filter('woocommerce_coupon_is_valid_for_product', 'woocommerce_coupon_is_valid_for_product', 10, 4);

function woocommerce_coupon_is_valid_for_product($valid, $product, $coupon, $values){
    if ( ! $coupon->is_type( array( 'bogof' ) ) ) {
        return $valid;
    }

    $product_cats = wp_get_post_terms( $product->id, 'product_cat', array( "fields" => "ids" ) );

    var_dump( $coupon->product_ids );

    // Specific products get the discount
    if ( sizeof( $coupon->product_ids ) > 0 ) {
        if ( in_array( $product->id, $coupon->product_ids ) || ( isset( $product->variation_id ) && in_array( $product->variation_id, $coupon->product_ids ) ) || in_array( $product->get_parent(), $coupon->product_ids ) ) {
            $valid = true;
        }
    }

    // Category discounts
    if ( sizeof( $coupon->product_categories ) > 0 ) {
        if ( sizeof( array_intersect( $product_cats, $coupon->product_categories ) ) > 0 ) {
            $valid = true;
        }
    }

    if ( ! sizeof( $coupon->product_ids ) && ! sizeof( $coupon->product_categories ) ) {
        // No product ids - all items discounted
        $valid = true;
    }

    // Specific product ID's excluded from the discount
    if ( sizeof( $coupon->exclude_product_ids ) > 0 ) {
        if ( in_array( $product->id, $coupon->exclude_product_ids ) || ( isset( $product->variation_id ) && in_array( $product->variation_id, $coupon->exclude_product_ids ) ) || in_array( $product->get_parent(), $coupon->exclude_product_ids ) ) {
            $valid = false;
        }
    }

    // Specific categories excluded from the discount
    if ( sizeof( $coupon->exclude_product_categories ) > 0 ) {
        if ( sizeof( array_intersect( $product_cats, $coupon->exclude_product_categories ) ) > 0 ) {
            $valid = false;
        }
    }

    // Sale Items excluded from discount
    if ( $coupon->exclude_sale_items == 'yes' ) {
        $product_ids_on_sale = wc_get_product_ids_on_sale();

        if ( isset( $product->variation_id ) ) {
            if ( in_array( $product->variation_id, $product_ids_on_sale, true ) ) {
                $valid = false;
            }
        } elseif ( in_array( $product->id, $product_ids_on_sale, true ) ) {
            $valid = false;
        }
    }

    return $valid;
}