[英]Add an email attachment to WooCommerce notifications based on product category
For some of my product I need to send an additional pdf (not an invoice) to my customers.对于我的某些产品,我需要向我的客户发送额外的 pdf(不是发票)。
With the help of this post: https://wordpress.org/support/topic/attach-pdf-to-confirmation-email-for-specific-product/在这篇文章的帮助下: https://wordpress.org/support/topic/attach-pdf-to-confirmation-email-for-specific-product/
I was able to attach an attachment to every order confirmation email.我能够将附件附加到每个订单确认 email。 Then I tried to change the code to filter by product sku.然后我尝试更改代码以按产品 sku 过滤。
In this post I found some infos about the variables that are available and read about some changes for WP3: How to get WooCommerce order details在这篇文章中,我找到了一些关于可用变量的信息,并阅读了关于 WP3 的一些更改: 如何获取 WooCommerce 订单详细信息
Here my code that unfortunately doesn't work and is not attaching anything to the confirmation email anymore:不幸的是,我的代码在这里不起作用,并且不再向确认 email 附加任何内容:
add_filter( 'woocommerce_email_attachments', 'webroom_attach_to_wc_emails', 10, 3);
function webroom_attach_to_wc_emails ( $attachments , $email_id, $order ) {
// Avoiding errors and problems
if ( ! is_a( $order, 'WC_Order' ) || ! isset( $email_id ) ) {
return $attachments;
}
$file_path = get_stylesheet_directory() . '/Lizenzen/TestAttachment.pdf';
$product_sku = '1234';
if( $email_id === 'customer_processing_order' ){
foreach ($order->get_items() as $item_key => $item ):
$product = $item->get_product();
if ( $product_sku === $product->get_sku() ) {
$attachments[] = $file_path;
}
endforeach;
}
return $attachments;
}
How would I have to change it to check for product category instead of SKU?我将如何更改它以检查产品类别而不是 SKU?
A general question would be: How can I debug this php code?一个普遍的问题是:如何调试这个 php 代码? Is there a way to show eg variables like email_id etc to check if the code gets correct values?有没有办法显示例如 email_id 等变量来检查代码是否获得正确的值?
Following code adds the attachment based on以下代码基于添加附件
$email_id === 'customer_processing_order'
. $email_id === 'customer_processing_order'
。 For other $email_ids
, see How to target other WooCommerce order emails对于其他$email_ids
,请参阅如何定位其他 WooCommerce 订单电子邮件
Also make sure the file path is correct!还要确保文件路径正确!
So you get:所以你得到:
function filter_woocommerce_email_attachments( $attachments, $email_id, $order, $email_object = null ) {
// Avoiding errors and problems
if ( ! is_a( $order, 'WC_Order' ) || ! isset( $email_id ) ) return $attachments;
// File path
$file_path = get_template_directory() . '/Lizenzen/TestAttachment.pdf';
// Specific categories, several could be added, separated by a comma
$specific_categories = array( 'Categorie-A', 'categorie-1' );
// Email id equal to (view: https://stackoverflow.com/a/61459068/11987538)
if ( $email_id === 'customer_processing_order' ) {
// Loop through order items
foreach( $order->get_items() as $item ) {
// Product ID
$product_id = $item->get_variation_id() > 0 ? $item->get_variation_id() : $item->get_product_id();
// Has term (product category)
if ( has_term( $specific_categories, 'product_cat', $product_id ) ) {
// Push to array
$attachments[] = $file_path;
}
}
}
return $attachments;
}
add_filter( 'woocommerce_email_attachments', 'filter_woocommerce_email_attachments', 10, 4 );
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