Create print invoice button on complete order page

Good morning at all community,
I've a big problem to create a button for invoice printing after i complete the order. The page is
com_eshop/themes/default/views/checkout/complete.php

I've insert the following code to the button to create a print page:

<?php
$order = $this->orderInfor ;
$orderId = JRequest::getInt('order_id');
$utente = JFactory::getUser();
?>
<a class="btn btn-primary" href="<?php echo JRoute::_('index.php?option=com_eshop&task=customer.downloadInvoice&id='.intval($order->id).'&customer_id='.intval($utente->get('id'))); ?>" title="<?php echo JText::_('ESHOP_DOWNLOAD'); ?>"><?php echo JText::_('ESHOP_DOWNLOAD_INVOICE'); ?></a>

Please help me

Hello Luigi,

We don't support to place the print invoice button there. Why do you need that why customer got the notification email with the attached invoice there?

Sincerely, Giang

The problem is that the component eshop it was adapted on a web site that use multiple user that generate the order and need for this user to print an invoice immediately if need in the order review when accept the order.
Please if you can help me....

Anybody there for an help please?