检查 user/guest 是否在 WooCommerce 中购买了特定产品

Question

我需要检查客户是否早些时候在 WooCommerce 中购买了特定产品。

情况是这样的：客户将无法购买产品 "c"、"d"、"e"，除非他们购买了产品 "a" 或 [=27] =] 在较早的时间。

如果客户之前购买了产品"a"或"b"，则产品"c"、"d"和"e"的购买按钮被激活并且他们被允许购买。

如果他们之前没有购买 "a" 或 "b"，将不允许他们购买 "c"、"d"、"e" 和购买按钮已停用。

我怎样才能做到这一点？

谢谢。

Answer 1

Lighter and improved code version that handle multiple product IDs

已更新 （与 Woocommerce 3+ 的兼容性）

是的，如果当前客户已经购买了特定定义的产品 ID，则可以编写一个条件函数 returns "true"。 此代码在您的活动子主题或主题 的function.php 文件中。

这是条件函数：

function has_bought_items() {
    $bought = false;

    // Set HERE ine the array your specific target product IDs
    $prod_arr = array( '21', '67' );

    // Get all customer orders
    $customer_orders = get_posts( array(
        'numberposts' => -1,
        'meta_key'    => '_customer_user',
        'meta_value'  => get_current_user_id(),
        'post_type'   => 'shop_order', // WC orders post type
        'post_status' => 'wc-completed' // Only orders with status "completed"
    ) );
    foreach ( $customer_orders as $customer_order ) {
        // Updated compatibility with WooCommerce 3+
        $order_id = method_exists( $order, 'get_id' ) ? $order->get_id() : $order->id;
        $order = wc_get_order( $customer_order );

        // Iterating through each current customer products bought in the order
        foreach ($order->get_items() as $item) {
            // WC 3+ compatibility
            if ( version_compare( WC_VERSION, '3.0', '<' ) ) 
                $product_id = $item['product_id'];
            else
                $product_id = $item->get_product_id();

            // Your condition related to your 2 specific products Ids
            if ( in_array( $product_id, $prod_arr ) ) 
                $bought = true;
        }
    }
    // return "true" if one the specifics products have been bought before by customer
    return $bought;
}

此代码已经过测试并且有效。

用法：
例如，您可以在某些 WooCommerce templates 中使用它，您之前已将其复制到您的活动子主题或主题中：

关于add-to-cart按钮的商店页面的模板是loop/add-to-cart.php。
关于 add-to-cart 按钮的 产品页面 的模板位于 single-product/add-to-cart folder 中，具体取决于您的产品类型。

这是您可以在这些模板中使用的示例 （以上）:

// Replace the numbers by your special restricted products IDs
$restricted_products = array( '20', '32', '75' );

// compatibility with WC +3
$product_id = method_exists( $product, 'get_id' ) ? $product->get_id() : $product->id;

// customer has NOT already bought a specific product for this restricted products
if ( !has_bought_items() && in_array( $product_id, $restricted_products ) ) { 

    // Displaying an INACTIVE add-to-cart button (With a custom text, style and without the link).
    // (AND optionally) an explicit message for example.

// ALL OTHER PRODUCTS OR RESTRICTED PRODUCTS IF COSTUMER HAS ALREADY BOUGHT SPECIAL PRODUCTS
} else { 

    // place for normal Add-To-Cart button code here
}

这里是完整的应用示例到add-to-cart商店页面[=64]上的按钮模板=]：

<?php /** * Loop Add to Cart * * This template can be overridden by copying it to yourtheme/woocommerce/loop/add-to-cart.php. * * HOWEVER, on occasion WooCommerce will need to update template files and you * (the theme developer) will need to copy the new files to your theme to * maintain compatibility. We try to do this as little as possible, but it does * happen. When this occurs the version of the template file will be bumped and * the readme will list any important changes. * * @see https://docs.woocommerce.com/document/template-structure/ * @author WooThemes * @package WooCommerce/Templates * @version 2.5.0 */ if ( ! defined( 'ABSPATH' ) ) { exit; } global $product; // Replace the numbers by your special restricted products IDs $restricted_products = array( '37', '53', '70' ); // compatibility with WC +3 $product_id = method_exists( $product, 'get_id' ) ? $product->get_id() : $product->id; if ( !has_bought_items() && in_array( $product_id, $restricted_products ) ) { echo '<a class="button greyed_button">' . __("Disabled", "your_theme_slug") . '</a>'; echo ' ' . __("Your message goes here…", "your_theme_slug") . ''; } else { echo apply_filters( 'woocommerce_loop_add_to_cart_link', sprintf( '<a rel="nofollow" href="%s" data-quantity="%s" data-product_id="%s" data-product_sku="%s" class="%s">%s</a>', esc_url( $product->add_to_cart_url() ), esc_attr( isset( $quantity ) ? $quantity : 1 ), esc_attr( $product_id ), esc_attr( $product->get_sku() ), esc_attr( isset( $class ) ? $class : 'button' ), esc_html( $product->add_to_cart_text() ) ), $product ); }

您将在 style.css[中使用 greyed_button class 设置非活动按钮的样式=64=] 您的活动子主题或主题的文件。 greyed_button-message class.
的消息也一样

Answer 2

我会这样做；

这不会对 woocommerce 模板进行任何修改，而只会使用过滤器 woocommerce_is_purchasable

这些都是功能，

查看当前产品ID是否已经被客户携带，在2.6+版本，woocommerce实现了wc_customer_bought_product检查客户是否已经携带产品的功能，我没用过它之前，但基于文档，您可以创建如下所示的函数来检查产品 ID 数组，如果其中一个已经被引入；
```
function cmk_check_product_brought( $ids=array() ) {
    if ( ! $ids ) return false;
    foreach ( $ids as $product => $id ) {
        if ( wc_customer_bought_product( wp_get_current_user()->user_email, get_current_user_id(), $id ) ) {
            return true;
        }
    }
}
```

我之前检查客户是否已经携带特定产品 ID 的方法如下，因此您可以使用这些功能中的任何一个，尽管我创建的不是 ID 数组

function cmk_product_ordered( $id ) {
    // Get All order of current user
    $orders = get_posts( array(
        'numberposts' => -1,
        'meta_key'    => '_customer_user',
        'meta_value'  => get_current_user_id(),
        'post_type'   => wc_get_order_types( 'view-orders' ),
        'post_status' => array_keys( wc_get_order_statuses() )
    ) );

    if ( !$orders ) return false; // return if no order found

    $all_ordered_product = array(); // store all products ordered by ID in an array

    foreach ( $orders as $order => $data ) { // Loop through each order
        $order_data = new WC_Order( $data->ID ); // create new object for each order
        foreach ( $order_data->get_items() as $key => $item ) {  // loop through each order item
            // store in array with product ID as key and order date a value
            $all_ordered_product[ $item['product_id'] ] = $data->post_date; 
        }
    }
    // check if defined ID is found in array
    if ( isset( $all_ordered_product[ $id ] ) ) return true;
    else return false;
}

现在我们可以检查产品 ID 是否已经带上，我们可以简单地在 woocommerce_is_purchasable 上添加一个过滤器来创建我们自己的条件，下面的这个函数是您正在尝试的一个简单示例实现，

刚刚更改了 $required_purchased 和 $conditional_purchase 值。

function cmk_disable_product_purchase( $purchasable, $product ) {

    // array of products required to be purchase first
    $required_purchased = array( 1, 2);

    // array of restricted/conditional products to be purchase
    $conditional_purchase = array( 3,4,5);

    // Get the ID for the current product
    $product_id = $product->is_type( 'variation' ) ? $product->variation_id : $product->id;

    //return default $purchasable if current product ID is not in restricted array
    if ( !in_array($product_id, $conditional_purchase)) return $purchasable;

    /**
     ** Check if one required products has been purchase;
     **/

    // using cmk_check_product_brought() function, return false if product is not purchase
    if ( ! cmk_check_product_brought( $required_purchased ) ) $purchasable = false;

    // using cmk_product_ordered() function, you can use this instead
    /*if ( cmk_product_ordered( 1 )  || cmk_product_ordered( 2 ) ) {
        $purchasable = $purchasable; //return default if one product is purchased
    } else {
        $purchasable = false;
    }*/

    // Double-check for variations: if parent is not purchasable, then variation is not
    if ( $purchasable && $product->is_type( 'variation' ) ) {
        $purchasable = $product->parent->is_purchasable();
    }

    return $purchasable;
}
add_filter( 'woocommerce_variation_is_purchasable', 'cmk_disable_product_purchase', 10, 2 );
add_filter( 'woocommerce_is_purchasable', 'cmk_disable_product_purchase', 10, 2 );

并且应该将产品设置为不可购买（添加到购物车按钮将自动隐藏）。现在，如果您想为不可购买的产品添加一条消息，您可以简单地使用 cmk_disable_product_purchase 的相同条件，添加您的消息并将其挂在 woocommerce_single_product_summary 或任何您希望它显示的地方。

Answer 3

内置的woocommerce功能wc_customer_bought_product也可以用在这种情况下

查看函数用法here。

Answer 4

2020 年更新：现在处理来宾用户的帐单电子邮件。

New version compact, lighter, faster and compatible with all versions of woocommerce (from version 2.4 and above)

这是部分基于内置 woocommerce 函数 wc_customer_bought_product 源代码的新增强和轻量级条件函数。

There are 2 optional arguments:

$user_var will allow you to:

指定一个已定义的用户 ID （当前登录用户未使用时）
或来宾用户的帐单电子邮件；
$product_ids (array) 将允许指定一个或多个产品 ID 来检查

代码如下：

function has_bought_items( $user_var = 0,  $product_ids = 0 ) {
    global $wpdb;
    
    // Based on user ID (registered users)
    if ( is_numeric( $user_var) ) { 
        $meta_key     = '_customer_user';
        $meta_value   = $user_var == 0 ? (int) get_current_user_id() : (int) $user_var;
    } 
    // Based on billing email (Guest users)
    else { 
        $meta_key     = '_billing_email';
        $meta_value   = sanitize_email( $user_var );
    }
    
    $paid_statuses    = array_map( 'esc_sql', wc_get_is_paid_statuses() );
    $product_ids      = is_array( $product_ids ) ? implode(',', $product_ids) : $product_ids;

    $line_meta_value  = $product_ids !=  ( 0 || '' ) ? 'AND woim.meta_value IN ('.$product_ids.')' : 'AND woim.meta_value != 0';

    // Count the number of products
    $count = $wpdb->get_var( "
        SELECT COUNT(p.ID) FROM {$wpdb->prefix}posts AS p
        INNER JOIN {$wpdb->prefix}postmeta AS pm ON p.ID = pm.post_id
        INNER JOIN {$wpdb->prefix}woocommerce_order_items AS woi ON p.ID = woi.order_id
        INNER JOIN {$wpdb->prefix}woocommerce_order_itemmeta AS woim ON woi.order_item_id = woim.order_item_id
        WHERE p.post_status IN ( 'wc-" . implode( "','wc-", $paid_statuses ) . "' )
        AND pm.meta_key = '$meta_key'
        AND pm.meta_value = '$meta_value'
        AND woim.meta_key IN ( '_product_id', '_variation_id' ) $line_meta_value 
    " );

    // Return true if count is higher than 0 (or false)
    return $count > 0 ? true : false;
}

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

此代码已在 WooCommerce 3+ 上测试并有效（它应该也适用于以前的版本）。

用法示例：

示例 1（登录客户）：检测当前用户是否购买了定义的产品之一(产品 ID 需要是一个数组)

// Define the targeted Products IDs
$product_ids = array( 38, 41, 85, 95 );

if( has_bought_items( '', $product_ids ) )
    echo "<p>You have already purchased one of this products</p>";
else
    echo "<p>You have not yet purchased one of this products</p>";

示例2 (for a defined user id)检测定义的用户是否有买了一个定义的产品(product Ids需要在一个数组中设置)

// Define the user ID
$user_id = 85;

// Define the targeted Products IDs
$product_ids = array( 38, 41, 85, 95 );

if( has_bought_items( $user_id, $product_ids ) )
    echo "<p>This user have already purchased one of this products</p>";
else
    echo "<p>This user have not yet purchased one of this products</p>";

如果$user_id未定义且当前用户未登录，此函数将return false.

示例 3 （对于 guest 用户） 检测是否 guest用户 已经从他的帐单邮箱 购买了一种定义的产品（产品 ID 需要在数组中设置）

// Define guest Billing email (string) $user_email = 'louis.fourteen@gmail.com'; // Define the targeted Products IDs $product_ids = array( 38, 41, 85, 95 ); if( has_bought_items( $user_email, $product_ids ) ) echo "This user have already purchased one of this products"; else echo "This user have not yet purchased one of this products";

如果$user_id未定义且当前用户未登录，此函数将return false.

示例4 （登录客户）：检测当前用户是否已经一次购买

if( has_bought_items() ) echo 'You have already made a purchase'; else echo 'Welcome, for your first purchase you will get a discount of 10%';

示例5 （定义用户id） - 检测定义的用户是否有已经购买

// Define the user ID $user_id = 85; if( has_bought_items( $user_id ) ) echo 'customer have already made a purchase'; else echo 'Customer with 0 purshases';

Now, if user id is equal to 0 and the current user is not logged in, this function will return false (if no billing email is defined for guest users).

检查 user/guest 是否在 WooCommerce 中购买了特定产品

Check if a user/guest has purchased specific products in WooCommerce

php

wordpress

product

orders

woocommerce

Lighter and improved code version that handle multiple product IDs