public function ContextAwarePluginTrait::getCacheMaxAge

File

core/lib/Drupal/Core/Plugin/ContextAwarePluginTrait.php, line 203

Class

ContextAwarePluginTrait

Provides a trait to add context-aware functionality to plugins.

Namespace

Code

public function getCacheMaxAge() {
  $max_age = Cache::PERMANENT;

  // Applied contexts can affect the cache max age when this plugin is
  // involved in caching, collect and return them.
  foreach ($this
    ->getContexts() as $context) {

    /** @var \Drupal\Core\Cache\CacheableDependencyInterface $context */
    if ($context instanceof CacheableDependencyInterface) {
      $max_age = Cache::mergeMaxAges($max_age, $context
        ->getCacheMaxAge());
    }
  }
  return $max_age;
}