根据客户在Woocommerce中的总购买金额添加百分比折扣

在Woocommerce,我想根据客户的总购买金额设置百分比折扣.例如,如果总购买金额大于或等于200$,则客户获得5%折扣.

所以,我有第一部分代码来显示总和:

function get_customer_total_order() {
    $customer_orders = get_posts( array(
        'numberposts' => - 1,
        'meta_key'    => '_customer_user',
        'meta_value'  => get_current_user_id(),
        'post_type'   => array( 'shop_order' ),
        'post_status' => array( 'wc-completed' )
    ) );

    $total = 0;

    foreach ( $customer_orders as $customer_order ) {
        $order = wc_get_order( $customer_order );
        $total += $order->get_total();
    }

    return $total;
}

我想将我的代码与此答案的代码一起使用:
基于WooCommerce中购物车总数的累进折扣

有没有办法使用它们来设置基于所有订单总和的折扣？

有多种方法可以获得客户的总购买金额:

1)您可以使用wc_get_customer_total_spent()专用的Woocommerce功能替换您的第一个功能,但此功能可以获取所有订单支付状态("处理"和"已完成").

2)您也可以使用基于类似源代码的轻量级SQL查询,仅用于"已完成"订单状态:

// Utililty function to get customer's total purchases sum
function get_customer_total_purchases_sum() {
    $current_user_id = get_current_user_id(); // Current user ID

    if( $current_user_id == 0 ) return 0; // we return zero if customer is not logged in

    global $wpdb;

    // return the SQL query (paid orders sum)
    return $wpdb->get_var("SELECT SUM(pm.meta_value) FROM {$wpdb->prefix}postmeta as pm
    INNER JOIN {$wpdb->prefix}postmeta as pm2 ON pm.post_id = pm2.post_id
    INNER JOIN {$wpdb->prefix}posts as p ON pm.post_id = p.ID
    WHERE p.post_status LIKE 'wc-completed' AND p.post_type LIKE 'shop_order'
    AND pm.meta_key LIKE '_order_total' AND pm2.meta_key LIKE '_customer_user'
    AND pm2.meta_value LIKE '$current_user_id'");
}

此代码位于活动子主题(或主题)的function.php文件中.经过测试和工作.

3)或者您可以使用自己的问题功能代码(但它更重).由你决定.

百分比折扣(2种方式):

1)负费用:

以下代码将根据客户的总购买金额设置百分比折扣(使用上面的函数):

// Percentage discount based on customer's total purchases sum
add_action('woocommerce_cart_calculate_fees', 'customer_purchases_total_sum_percentage_discount', 20, 1 );
function customer_purchases_total_sum_percentage_discount( $cart ){
    // Only for logged in user
    if ( ( is_admin() && ! defined( 'DOING_AJAX' ) ) || ! is_user_logged_in() )
        return;

    ## 1. Get the customer's purchases total sum (and save it in WC sessions to avoid multiple queries

    // Check if it's saved in WC_Session
    $purchases_sum = WC()->session->get( 'purchases_sum' ); 
    // If not get it and save it
    if( empty($purchases_sum) ){ 
        // ==> HERE goes the function to get customer's purchases total sum
        $purchases_sum = get_customer_total_purchases_sum();
        // Save it in WC_Session
        WC()->session->set('purchases_sum', $purchases_sum); 
    }

    ## 2. Set the discount percentage based on customer's total purchases sum
    if( $purchases_sum >= 200 ){
        $percent =  5; // 5%
    }

    if( isset($percent) && $percent > 0){
        $discount = $cart->cart_contents_total * $percent / 100; // discount calculation
        // Set the discount (For discounts (negative fee) the taxes as always included)
        $cart->add_fee( __('Discount', 'woocommerce' ) . " (" . $percent . "%)", -$discount);
    }
}

此代码位于活动子主题(或主题)的function.php文件中.经过测试和工作.

2)自动添加优惠券代码(百分比折扣):

首先,您需要设置新的优惠券代码(百分比折扣类型为5%):

然后,您将使用以下代码,它将根据客户的总购买金额自动添加优惠券代码(使用上面的函数):

add_action( 'woocommerce_before_calculate_totals', 'customer_total_purchases_coupon_discount', 30, 1 );
function customer_total_purchases_coupon_discount( $cart ) {
    // Only for logged in user
    if ( ( is_admin() && ! defined( 'DOING_AJAX' ) ) || ! is_user_logged_in() )
        return;

    if ( did_action( 'woocommerce_before_calculate_totals' ) >= 2 )
        return;

    // HERE define your coupon code (in lowercase)
    $coupon_code = 'customersilver';

    ## 1. Get the customer's purchases total sum (and save it in WC sessions to avoid multiple queries

    // Check if it's saved in WC_Session
    $purchases_sum = WC()->session->get( 'purchases_sum' );
    // If not get it and save it
    if( empty($purchases_sum) ){
        // ==> HERE goes the function to get customer's purchases total sum
        $purchases_sum = get_customer_total_purchases_sum();
        // Save it in WC_Session
        WC()->session->set('purchases_sum', $purchases_sum);
    }

    ## 2. Auto applying or removing a coupon code (percentage discount coupon)

    // Apply the coupon if there is at least 2 units of "5 Reusable wet"
    if ( ! $cart->has_discount( $coupon_code ) && $purchases_sum >= 200 ) {
        $cart->add_discount( $coupon_code );
    } elseif( $cart->has_discount( $coupon_code ) && $purchases_sum <200 ) {
        $cart->remove_coupon( $coupon_code );
    }
}

此代码位于活动子主题(或主题)的function.php文件中.经过测试和工作.