public function SystemConfigSubscriber::onConfigSave in Drupal 9

Same name and namespace in other branches

1. 8 core/modules/system/src/SystemConfigSubscriber.php \Drupal\system\SystemConfigSubscriber::onConfigSave()

Rebuilds the router when the default or admin theme is changed.

Parameters

\Drupal\Core\Config\ConfigCrudEvent $event:

File

core/modules/system/src/SystemConfigSubscriber.php, line 40

Class

SystemConfigSubscriber

System Config subscriber.

Namespace

Drupal\system

Code

public function onConfigSave(ConfigCrudEvent $event) {
  $saved_config = $event
    ->getConfig();
  if ($saved_config
    ->getName() == 'system.theme' && ($event
    ->isChanged('admin') || $event
    ->isChanged('default'))) {
    $this->routerBuilder
      ->setRebuildNeeded();
  }
}