In Magento 2.1 I want to do a custom action when the admin click on button "Print" in Invoice page. In particular I want to show a pdf saved in a specific folder.
I thought that I have to override the controller PrintAction but it doesn't work.
di.xml:
<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
<preference for="Magento\Sales\Controller\Adminhtml\Invoice\AbstractInvoice\PrintAction"
type="VendorName\ModuleName\Controller\Sales\Adminhtml\Invoice\AbstractInvoice\PrintAction"/>
</config>
controller override:
<?php
namespace VendorName\ModuleName\Controller\Sales\Adminhtml\Invoice\AbstractInvoice;
abstract class PrintAction extends \Magento\Sales\Controller\Adminhtml\Invoice\AbstractInvoice\PrintAction
{
public function execute($coreRoute = null)
{
// My action
}
}
But when I click on Print button, it does the core action and not my action. Is right? Or what method do I have to override?
Update 1
I solved overriding the method getPdf of the class Magento\Sales\Model\Order\Pdf\Invoice. In the implemented method I loaded my pdf using:
$pdf = new \Zend_Pdf ($pdfPath, null, true);
return $pdf;
Update 2
Finally I decided to override the execute() method in
\Magento\Sales\Controller\Adminhtml\Order\Invoice\PrintAction
Because of I don't have to modify the PDF during the creation but I have to load a PDF stored in a folder, it's the better way.
