How to attach Invoice PDF in invoice email

Question

I want to attach invoice pdf to the invoice mail, I followed the link and override the email functions.

First Override the app/code/Mage/core/Model/Email/Template/Mailer.php like,

1. Adding protected $pdftemplate;

2. Overriding the send() function,

   if($this->pdftemplate){ $pdftemplate = $this->variable; }else{ $pdftemplate = Mage::getModel('core/email_template'); }

3. Adding attachment function at the end of the class,

   /** Add Attachment**/

   public function addAttachment(Zend_Pdf $pdf, $filename){
       $file = $pdf->render();
       $this->pdftemplate = Mage::getModel('core/email_template'); 
       $attachment = $this->pdftemplate->getMail()->createAttachment($file);
       $attachment->type = 'application/pdf';
       $attachment->filename = $filename;
   }
   

Second I override the app/code/Mage/Sales/Order/Invoice.php, sendEmail() function,

$mailer = Mage::getModel('core/email_template_mailer');
        $pdf = Mage::getModel('sales/order_pdf_invoice')->getPdf(array($this));
        $mailer->addAttachment($pdf,'invoice.pdf');

But the pdf is not attached. I don't know what to do next. I hope someone will point me the issue.

Thanks!..

Answer 1

you have to try extension first, then if you like you can customize it: https://marketplace.magento.com/fooman-fooman-emailattachments.html

Feature List

• Automatically attach a copy of Order/Invoice/Shipment/Credit Memo pdf documents (with or without comments) to Order/Invoice/Shipment/Credit Memo emails
• Automatically attach your Terms and Conditions (as html/text file) to Order/Invoice/Shipment/Credit Memo emails
• Automatically attach any pdf document to Order/Invoice/Shipment/Credit Memo emails (for example, your return policy, a coupon or voucher, or your latest newsletter)
• Create an Order Confirmation pdf document from the Order Overview screen or individual Order View page
• Print Order Confirmation pdf documents for multiple orders in bulk from the the Order Overview screen
• Developer bonus - if you write your own extensions, you can hook into the email sending process into the events added by this extension