Version 1

[yaffs-website] / web / modules / contrib / redirect / src / EventSubscriber / RedirectSettingsCacheTag.php

diff --git a/web/modules/contrib/redirect/src/EventSubscriber/RedirectSettingsCacheTag.php b/web/modules/contrib/redirect/src/EventSubscriber/RedirectSettingsCacheTag.php
new file mode 100644 (file)
index 0000000..7dfb063
--- /dev/null
+++ b/web/modules/contrib/redirect/src/EventSubscriber/RedirectSettingsCacheTag.php
@@ -0,0 +1,54 @@
+<?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;
+  }
+
+}