Attach file to transactional email in 1.9.3.4

Question

Looking to change the 1.9.3.4 email system to allow for adding attachments.

Due to the nature of the attachment (dynamically generated PDF based on a variety of things, from customers/orders/3rd party) I would like to attach the PDF in this function:

queueNewOrderEmail

in this file:

/app/code/local/Mage/Sales/Model/Order.php

The changes to the email system in recent versions make finding info online extremely difficult.

It looks as though I should be creating the Zend attachment function in here:

/app/code/local/Mage/Core/Model/Email/Template.php

However, it looks as though the email queue system will ignore that.

This seems like it should be a quick and easy task, but I'm absolutely stumped at this point.

Answer 1

Not great, but I've got a workaround for now.

I've added the Zend file attachment stuff in this file,

/app/code/local/Mage/Core/Model/Email/Template.php

inside the send($email, $name = null, array $variables = array()) function.

$filename = $variables['filename']; 
$content = file_get_contents("/var/www/webroot/".$filename); 
//some additional work is done here to verify the file is legitimate/safe/etc.
$attachment = new Zend_Mime_Part($content);
$attachment->type = 'application/pdf';
$attachment->disposition = Zend_Mime::DISPOSITION_ATTACHMENT;
$attachment->encoding = Zend_Mime::ENCODING_BASE64;
$attachment->filename = $filename;

This allows me to pass the file name from this file: /app/code/local/Mage/Sales/Model/Order.php

Inside queueNewOrderEmail($forceMode = false)

$mailer->setTemplateParams(array(
                  'order'        => $this,
                  'billing'      => $this->getBillingAddress(),
                  'payment_html' => $paymentBlockHtml,
                  'customMessage' => $message,
                  'filename' => $filename
              )
          );