Prestashop, Generating invoice(pdf) automatically - prestashop

Question

So I'm looking for a solution to save invoice automatically into my server folder, when I press view invoice as the generated URL occurs (http://www.example.com/admin11111/index.php?controller=AdminPdf&token="token"&submitAction=generateInvoicePDF&id_order="id").
I also did research on google, but this solution, somehow didnt work for me: https://www.prestash...es-in-a-folder/
From Prestashop Forum I got advice that I should use shell script, but using a shell download like wget or other only gets me html file, because when I download the invoice in Prestashop backoffice.. it takes some time to generate and the download save appears later.

Answer 1

With this 2 overrides you could accomplish this.
Override PDF.php:
class PDF extends PDFCore
{
public function render($display = true)
{
if($this->template == PDF::TEMPLATE_INVOICE)
parent::render('F', true);
return parent::render($display);
}
}
Override PDFGenerator.php:
class PDFGenerator extends PDFGeneratorCore
{
public function render($filename, $display = true)
{
if (empty($filename)) {
throw new PrestaShopException('Missing filename.');
}
$this->lastPage();
if ($display === true) {
$output = 'D';
} elseif ($display === false) {
$output = 'S';
} elseif ($display == 'D') {
$output = 'D';
} elseif ($display == 'S') {
$output = 'S';
} elseif ($display == 'F') {
$output = 'F';
$filename = _PS_ROOT_DIR_.'/'.$filename;
} else {
$output = 'I';
}
return $this->output($filename, $output);
}
}
Remember to choose another folder other than _PS_ROOT_DIR_. This was just for testing. Try $filename = _PS_ROOT_DIR_.'/../invoices/'.$filename; so it's not a public folder (and you must create the folder with the correct permissions.