public function ExceptionDetectNeedsInstallSubscriber::onException in Drupal 9

Same name and namespace in other branches

1. 8 core/lib/Drupal/Core/EventSubscriber/ExceptionDetectNeedsInstallSubscriber.php \Drupal\Core\EventSubscriber\ExceptionDetectNeedsInstallSubscriber::onException()

Handles errors for this subscriber.

Parameters

\Symfony\Component\HttpKernel\Event\ExceptionEvent $event: The event to process.

File

core/lib/Drupal/Core/EventSubscriber/ExceptionDetectNeedsInstallSubscriber.php, line 41

Class

ExceptionDetectNeedsInstallSubscriber

Exception handler to determine if an exception indicates an uninstalled site.

Namespace

Drupal\Core\EventSubscriber

Code

public function onException(ExceptionEvent $event) {
  $exception = $event
    ->getThrowable();
  if ($this
    ->shouldRedirectToInstaller($exception, $this->connection)) {

    // Only redirect if this is an HTML response (i.e., a user trying to view
    // the site in a web browser before installing it).
    $request = $event
      ->getRequest();
    $format = $request->query
      ->get(MainContentViewSubscriber::WRAPPER_FORMAT, $request
      ->getRequestFormat());
    if ($format == 'html') {
      $event
        ->setResponse(new RedirectResponse($request
        ->getBasePath() . '/core/install.php', 302, [
        'Cache-Control' => 'no-cache',
      ]));
    }
  }
}