function ConfigFactory::onConfigSave

Updates stale static cache entries when configuration is saved.

Parameters

ConfigCrudEvent $event: The configuration event.

File

core/lib/Drupal/Core/Config/ConfigFactory.php, line 338

Class

ConfigFactory

Defines the configuration object factory.

Namespace

Code

public function onConfigSave(ConfigCrudEvent $event) {
  $saved_config = $event->getConfig();
  // We are only concerned with config objects that belong to the collection
  // that matches the storage we depend on. Skip if the event was fired for a
  // config object belonging to a different collection.
  if ($saved_config->getStorage()
    ->getCollectionName() !== $this->storage
    ->getCollectionName()) {
    return;
  }
  // Ensure that the static cache contains up to date configuration objects by
  // replacing the data on any entries for the configuration object apart
  // from the one that references the actual config object being saved.
  foreach ($this->getConfigCacheKeys($saved_config->getName()) as $cache_key) {
    $cached_config = $this->cache[$cache_key];
    if ($cached_config !== $saved_config) {
      // We can not just update the data since other things about the object
      // might have changed. For example, whether or not it is new.
      $this->cache[$cache_key]
        ->initWithData($saved_config->getRawData());
    }
  }
}