Programmatically fill PDF

I've changed my UX for now, requiring the PDF template files to be uploaded first, then referencing them in my original_node.

Now I can, within my QueueWorker, create the url for the filled PDF; this is working fine.

Now I need to attach that filled PDF to the new_node; how do I do that? So far as I can see, unless I have a browser point to that URL, the filled PDF won't be created. I need to create it from my QueueWorker during a cron run, and attach it it new_node.

Thanks.

I'm making some progress here, just by using a RedirectResponse, but I suspect there's a better way to do it...

Now I'm trying to loop through several forms and create several PDF files, all with data from the same webform submission.

My code is:

    // Create the documents with FillPDF
    $fillpdf_urls = array(
      ('https://example.com/fillpdf?fid=' . $fid_1 . '&entity_type=webform_submission&entity_id=' . $sid . '&download=0&flatten=1'),
      ('https://example.com/fillpdf?fid=' . $fid_2 . '&entity_type=webform_submission&entity_id=' . $sid . '&download=0&flatten=1'),
      ('https://example.com/fillpdf?fid=' . $fid_3 . '&entity_type=webform_submission&entity_id=' . $sid . '&download=0&flatten=1')
    );
    foreach($fillpdf_urls as $fillpdf_url) {
      $response = new RedirectResponse($fillpdf_url);
      $request = \Drupal::request();
      // Save the session so things like messages get saved.
      $request->getSession()->save();
      $response->prepare($request);
      // Make sure to trigger kernel events.
      \Drupal::service('kernel')->terminate($request, $response);
      $response->send();
    }

This only creates the first one; I think because a redirection is occuring at the first $response->send().

How can I get this loop to work?

Thanks

Just found this error:

Failed to start the session because headers have already been sent by "/container/application/public/vendor/symfony/http-foundation/Response.php" at line 384.

This indicates that my RedirectResponse will never work to create more than one.

Help please!

Thanks

Once you send a redirect, the browser will proceed to request the new URL. A single request cannot send multiple redirects. If you need to create multiple PDFs, don't use the fill URL; go directly to the code that generates the PDF.

Liam, is this the link_manipulator service?

Liam,

I'm trying:

      // Create the documents with FillPDF
      $query = [
        'fid' => $fid,
        'entity_type' => 'webform_submission',
        'entity_id' => $sid,
        'download' => '0',
        'flatten' => '1',
      ];
      $url = Url::fromRoute('fillpdf.populate_pdf', [], ['query' => $query]);
      $context = $this->linkManipulator->parseLink($url);

This is returning Call to a member function parseLink() on null, where am I going wrong here?

Thanks.

Wherever you are running this, $this->linkManipulator is NULL. If you want to use ::parseLink(), it needs to be an object that implements FillPdfLinkManipulatorInterface.

But you probably don't want to do that. If you want to fill a PDF, you need to find the function that does that. Look at what functions get run when there is a request to route fillpdf.populate_pdf. Don't replicate the request, look further in the code for a function that actually does the filling.

When I use fillpdf.populate_pdf I get an error.

My code within my Controller's method is:

<?php

namespace Drupal\example_module\Controller;

use Drupal\Core\Controller\ControllerBase;
use \Drupal\Core\Url;
use Drupal\node\Entity\Node;
use Drupal\webform\Entity\WebformSubmission;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\Request;
use Drupal\fillpdf\Component\Utility\FillPdf;
use Drupal\file\Entity\File;
use Drupal\fillpdf\Entity\FillPdfForm;
use Drupal\fillpdf\TokenResolver;

class TestController extends ControllerBase {
	
  public function testfillpdf() {

    <-- a bunch of stuff to get the webform data-->

    $fillpdf_route = Url::fromRoute('fillpdf.populate_pdf', [], [
      'query' => [
        'fid' => $template,
        'entity_id'=>"webform_submission:{$sid}",
        'download'=>0,
        'flatten'=>1,
      ],
    ]);
    $this->drupalGet($fillpdf_route);
  }
}

I get error, "You have requested a non-existent service "fillpdf.populate_pdf"". I can't see what I'm doing different to public function testPdfPopulation() in PdfWebformPopulationTest.php.

Thanks

Don't copy the test. Look at what happens when a request come in to a FillPDF fill URL. Something will handle the request and pass it on to the code that actually fills the PDF. You can call that code directly. I don't remember what it is called.

Code that works:

  $backend_proxy=\Drupal::service('fillpdf.backend_proxy');
  $fillpdf_form = FillPdfForm::load($fid);
  $populated_pdf = $backend_proxy->merge($fillpdf_form, $entities);
  $filename = ('custom-filename.pdf');
  $destination = 'private://' . $filename;
  $file_entity = \Drupal::service('file.repository')->writeData($populated_pdf, $destination, FileSystemInterface::EXISTS_REPLACE);

Automatically closed - issue fixed for 2 weeks with no activity.