WooCommerce - 获取用户在一段时间内完成的状态订单

我需要通过 Woocommerce 中的用户 ID 获取用户上个月完成的购买。

用户有级别（金级、银级）：

• 金卡会员每月可购买4件商品；
• 银卡会员每月可以购买 1 件商品。

在将商品添加到购物车之前，我需要检查这一点。我不想仅使用插件来实现此功能（顺便说一句，找不到该功能）。

那可能吗？
我怎样才能实现这个目标？

Thanks

可以得到购买的商品总数 by the 过去 30 天内的当前客户.

这是这个函数的代码基于这个答案 https://stackoverflow.com/questions/38874189/checking-if-customer-has-already-bought-something-in-woocommerce/38875458#38875458:

function current_customer_month_count( $user_id=null ) {
    if ( empty($user_id) ){
        $user_id = get_current_user_id();
    }
    // Date calculations to limit the query
    $today_year = date( 'Y' );
    $today_month = date( 'm' );
    $day = date( 'd' );
    if ($today_month == '01') {
        $month = '12';
        $year = $today_year - 1;
    } else{
        $month = $today_month - 1;
        $month = sprintf("%02d", $month);
        $year = $today_year - 1;
    }

    // ORDERS FOR LAST 30 DAYS (Time calculations)
    $now = strtotime('now');
    // Set the gap time (here 30 days)
    $gap_days = 30;
    $gap_days_in_seconds = 60*60*24*$gap_days;
    $gap_time = $now - $gap_days_in_seconds;

    // The query arguments
    $args = array(
        // WC orders post type
        'post_type'   => 'shop_order',
        // Only orders with status "completed" (others common status: 'wc-on-hold' or 'wc-processing')
        'post_status' => 'wc-completed', 
        // all posts
        'numberposts' => -1,
        // for current user id
        'meta_key'    => '_customer_user',
        'meta_value'  => $user_id,
        'date_query' => array(
            //orders published on last 30 days
            'relation' => 'OR',
            array(
                'year' => $today_year,
                'month' => $today_month,
            ),
            array(
                'year' => $year,
                'month' => $month,
            ),
        ),
    );

    // Get all customer orders
    $customer_orders = get_posts( $args );
    $count = 0;
    if (!empty($customer_orders)) {
        $customer_orders_date = array();
        // Going through each current customer orders
        foreach ( $customer_orders as $customer_order ){
            // Conveting order dates in seconds
            $customer_order_date = strtotime($customer_order->post_date);
            // Only past 30 days orders
            if ( $customer_order_date > $gap_time ) {
                $customer_order_date;
                $order = new WC_Order( $customer_order->ID );
                $order_items = $order->get_items();
                // Going through each current customer items in the order
                foreach ( $order_items as $order_item ){
                    $count++;
                }
            }
        }
        return $count;
    }
}

此代码位于活动子主题（或主题）的 function.php 文件中或任何插件文件中。

该函数接受一个可选的user_id参数（如果需要）。例如对于一个user_id with 56值，您将使用该函数，如下所示：

// For user ID: "56".
$number_of_items_in_last_month = current_customer_month_count('56');

该函数将得到当前用户ID in $user_id = get_current_user_id();，如果你不设置参数user_id值，这样：

// For current logged user.
$number_of_items_in_last_month = current_customer_month_count();

您可以在条件 if 语句中使用此函数，通过 somme WooCommerce 隐藏或替换“添加到购物车”按钮hooks https://docs.woocommerce.com/wc-apidocs/hook-docs.html or 相关模板 https://docs.woocommerce.com/document/template-structure/.
您可以在该任务中获得帮助，提出一个包含此代码的新问题，并提供有关如何执行此操作的更多详细信息。

这段代码已经过测试并且可以工作。

参考：检查客户是否已经在 WooCommerce 中购买了商品 https://stackoverflow.com/questions/38874189/checking-if-customer-has-already-bought-something-in-woocommerce/38875458#38875458