insert date and number in delivery (or invoice) PDF manualy

[Suroiu]

Hi there, I want when i press the button to view delivery slip PDF to insert the date and the number manually.

 

For that to happen I think a small popup windows with 2 input text area must appear (1 for date and 1 for number) where I put the date and number manually and after I press "OK" the delivery slip PDF to be generated.

 

I'm a beginner in programming but I think to do that I must modify the next area from "HTMLTemplateDeliverySlip.php":

 

// header informations

        $this->date = Tools::displayDate($order_invoice->date_add);

        $prefix = Configuration::get('PS_DELIVERY_PREFIX', Context::getContext()->language->id);

        $this->title = sprintf(HTMLTemplateDeliverySlip::l('%1$s%2$06d'), $prefix, $this->order_invoice->delivery_number);

 

Please help me and many other (I see i'm not the only one who what to do this) to make this modification.

Thank you in advance.

Edited January 27, 2017 by Suroiu (see edit history)