/**
* Allows other modules to get hold of the pdf object for making changes.
*
* Only use this function if you're not able to achieve the right outcome with
* a custom template and CSS.
*
* @param \Drupal\entity_print\Plugin\PdfEngineInterface $pdf_engine
* The pdf engine plugin.
* @param \Drupal\Core\Entity\ContentEntityInterface $entity
* The entity we're rending.
*/
function hook_entity_print_pdf_alter(PdfEngineInterface $pdf_engine, ContentEntityInterface $entity)
{
$terms = \Drupal::config('mymodule.settings')->get('terms_and_conditions');
$pdf_engine->addPage($terms);
}
/**
* {@inheritdoc}
*/
public function getEntityRenderedAsPdf(ContentEntityInterface $entity, PdfEngineInterface $pdf_engine, $force_download = FALSE, $use_default_css = TRUE)
{
// Force CSS optimization for the PDF.
$html = $this->getHtml($entity, $use_default_css, TRUE);
$pdf_engine->addPage($html);
// Allow other modules to alter the generated PDF object.
$this->moduleHandler->alter('entity_print_pdf', $pdf_engine, $entity);
// If we're forcing a download we need a filename otherwise it's just sent
// straight to the browser.
$filename = $force_download ? $this->generateFilename($entity) : NULL;
// Try to send the PDF otherwise return the error.
if (!($result = $pdf_engine->send($filename))) {
return $pdf_engine->getError();
}
return $result;
}
