我使用WordPress和WooCommerce,并有一个SQL来调用特定产品类型的元标记。
function get_last_order_id_from_product( $product_id ) {
global $wpdb;
return $wpdb->get_col( $wpdb->prepare( "
SELECT oi.order_id
FROM {$wpdb->prefix}woocommerce_order_items as oi
LEFT JOIN {$wpdb->prefix}woocommerce_order_itemmeta as oim
ON oi.order_item_id = oim.order_item_id
LEFT JOIN {$wpdb->prefix}woocommerce_order_itemmeta as oim2
ON oi.order_item_id = oim2.order_item_id
LEFT JOIN {$wpdb->posts} AS p
ON oi.order_id = p.ID
WHERE p.post_type = 'shop_order'
AND oi.order_item_type = 'line_item'
AND oim.meta_key = '_product_id'
AND oim.meta_value = '%d'
AND oim2.meta_key = 'Ticket Number'
ORDER BY SUBSTRING_INDEX(oim2.meta_value, ' ', 10) DESC
LIMIT 1
", $product_id ) );
}上面的代码接受一个产品id并输出元标记,当我意识到当用户购买的数量超过一个数量时,它为‘票号’键创建的元值是'10 11‘,mysql将其视为一个字符串。我试着使用上面所示的SUBSTRING_INDEX将其分解,但它不会查看第一个订单之后的任何订单。
我需要它将数字看作单个数字,因此如果用户购买了项目中的10个,它可以识别最后一个数字为最高(例如21、22、23、24),下一个用户购买此产品时,sql查询将识别字符串中的24作为最高数字,并使新项目元值为25。
这也是我的功能,如果它有任何用处,它目前运行,但只从1的元值工作,不管许多产品是购买的:
add_action('woocommerce_order_status_processing', 'action_woocommerce_order_status_completed');
function action_woocommerce_order_status_completed($order_id) {
$order = new WC_Order($order_id);
$items = $order->get_items();
foreach ($items as $key => $value) {
$get_last_order = get_last_order_id_from_product( 10 );
if ($get_last_order == null){
$gen_id_1 = "0";
} else {
$get_order_id = implode($get_last_order);
$lastorder = wc_get_order($get_order_id);
$lastitem = $lastorder->get_items();
foreach ($lastitem as $key2 => $value2) {
$custom_thing = $value2->get_meta('Ticket Number');
}
$gen_ids = explode(' ', $custom_thing);
$gen_id_1 = end($gen_ids);
}
$qua = $value->get_quantity();
for ($x = 1; $x <= $qua; $x++) {
$gen_id_1++;
$gen_id_2 .= " $gen_id_1";
};
$value->add_meta_data( "Ticket Number", $gen_id_2);
$value->save();
}
}发布于 2020-05-20 00:23:29
有一种不同的方式,更容易和更有效地使这一工作。
当订单更改为处理状态时:
代码(注释)
add_action( 'woocommerce_order_status_processing', 'action_woocommerce_order_status_processing', 10, 2 );
function action_woocommerce_order_status_processing( $order_id, $order ) {
// Loop through order items
foreach ($order->get_items() as $item_id => $item ) {
// Check that tickets numbers haven't been generated yet for this item
if( $item->get_meta( "_tickets_number") )
continue;
$product = $item->get_product(); // Get the WC_Produt Object
$quantity = (int) $item->get_quantity(); // Get item quantity
// Get last ticket sold index from product meta data
$now_index = (int) $product->get_meta('_tickets_sold');
$tickets_ids = array(); // Initializing
// Generate an array of the customer tickets Ids from the product registered index (last ticket ID)
for ($i = 1; $i <= $quantity; $i++) {
$tickets_ids[] = $now_index + $i;
};
// Save the tickets numbers as order item custom meta data
$item->update_meta_data( "Tickets numbers", implode(' ', $tickets_ids) ); // Displayed string of tickets numbers on customer orders and emails
$item->update_meta_data( "_tickets_number", $tickets_ids ); // (Optional) Array of the ticket numbers (Not displayed to the customer)
$item->save(); // Save item meta data
// Update the Ticket index for the product (custom meta data)
$product->update_meta_data('_tickets_sold', $now_index + $quantity );
$product->save(); // Save product data
}
$order->save(); // Save all order data
}代码在您的活动子主题(活动主题)的functions.php文件中。测试和工作。
隐藏的自定义订单项元数据是可选的,允许您使用:
$item->get_meta('_tickets_number');获取票证数组,而不是一串票证。
如果您希望是一个全局票务系统(而不是在产品级别),您将使用以下方法:
add_action( 'woocommerce_order_status_processing', 'action_woocommerce_order_status_processing', 10, 2 );
function action_woocommerce_order_status_processing( $order_id, $order ) {
// Loop through order items
foreach ($order->get_items() as $item_id => $item ) {
$now_index = (int) get_option( "wc_tickets_number_index"); // Get last ticket number sold (globally)
$quantity = (int) $item->get_quantity(); // Get item quantity
$tickets_ids = array(); // Initializing
// Generate an array of the customer tickets Ids from the tickets index
for ($i = 1; $i <= $quantity; $i++) {
$tickets_ids[] = $now_index + $i;
};
// Save the tickets numbers as order item custom meta data
$item->update_meta_data( "Tickets numbers", implode(' ', $tickets_ids) ); // Displayed string of tickets numbers on customer orders and emails
$item->update_meta_data( "_tickets_number", $tickets_ids ); // (Optional) Array of the ticket numbers (Not displayed to the customer)
$item->save(); // Save item meta data
// Update last ticket number sold (globally)
update_option( 'wc_tickets_number_index', $now_index + $quantity );
}
$order->save(); // Save all order data
}代码在您的活动子主题(活动主题)的functions.php文件中。应该管用的。
https://stackoverflow.com/questions/61901348
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