RedirectSettingsCacheTag.php in Redirect 8
Namespace
Drupal\redirect\EventSubscriberFile
src/EventSubscriber/RedirectSettingsCacheTag.phpView source
<?php
namespace Drupal\redirect\EventSubscriber;
use Drupal\Core\Cache\CacheTagsInvalidatorInterface;
use Drupal\Core\Config\ConfigCrudEvent;
use Drupal\Core\Config\ConfigEvents;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
/**
* A subscriber invalidating the 'rendered' cache tag when saving redirect settings.
*/
class RedirectSettingsCacheTag implements EventSubscriberInterface {
/**
* The cache tags invalidator.
*
* @var \Drupal\Core\Cache\CacheTagsInvalidatorInterface
*/
protected $cacheTagsInvalidator;
/**
* Constructs a RedirectSettingsCacheTag object.
*
* @param \Drupal\Core\Cache\CacheTagsInvalidatorInterface $cache_tags_invalidator
* The cache tags invalidator.
*/
public function __construct(CacheTagsInvalidatorInterface $cache_tags_invalidator) {
$this->cacheTagsInvalidator = $cache_tags_invalidator;
}
/**
* Invalidate the 'rendered' cache tag whenever the settings are modified.
*
* @param \Drupal\Core\Config\ConfigCrudEvent $event
* The Event to process.
*/
public function onSave(ConfigCrudEvent $event) {
// Changing the Redirect settings means that any cached page might
// result in a different response, so we need to invalidate them all.
if ($event
->getConfig()
->getName() === 'redirect.settings') {
$this->cacheTagsInvalidator
->invalidateTags([
'rendered',
]);
}
}
/**
* {@inheritdoc}
*/
public static function getSubscribedEvents() {
$events[ConfigEvents::SAVE][] = [
'onSave',
];
return $events;
}
}
Classes
Name | Description |
---|---|
RedirectSettingsCacheTag | A subscriber invalidating the 'rendered' cache tag when saving redirect settings. |