class SessionExistsCacheContext

Defines the SessionExistsCacheContext service, for "session or not" caching.

Cache context ID: 'session.exists'.

Hierarchy

Expanded class hierarchy of SessionExistsCacheContext

1 string reference to 'SessionExistsCacheContext'
core.services.yml in core/core.services.yml
core/core.services.yml
1 service uses SessionExistsCacheContext
cache_context.session.exists in core/core.services.yml
Drupal\Core\Cache\Context\SessionExistsCacheContext

File

View on git.drupalcode.org

core/lib/Drupal/Core/Cache/Context/SessionExistsCacheContext.php, line 14

Namespace

Drupal\Core\Cache\Context
View source 
class SessionExistsCacheContext implements CacheContextInterface {
  
  /**
   * The session configuration.
   *
   * @var \Drupal\Core\Session\SessionConfigurationInterface
   */
  protected $sessionConfiguration;
  
  /**
   * The request stack.
   *
   * @var \Symfony\Component\HttpFoundation\RequestStack
   */
  protected $requestStack;
  
  /**
   * Constructs a new SessionExistsCacheContext class.
   *
   * @param \Drupal\Core\Session\SessionConfigurationInterface $session_configuration
   *   The session configuration.
   * @param \Symfony\Component\HttpFoundation\RequestStack $request_stack
   *   The request stack.
   */
  public function __construct(SessionConfigurationInterface $session_configuration, RequestStack $request_stack) {
    $this->sessionConfiguration = $session_configuration;
    $this->requestStack = $request_stack;
  }
  
  /**
   * {@inheritdoc}
   */
  public static function getLabel() {
    return t('Session exists');
  }
  
  /**
   * {@inheritdoc}
   */
  public function getContext() {
    return $this->sessionConfiguration
      ->hasSession($this->requestStack
      ->getCurrentRequest()) ? '1' : '0';
  }
  
  /**
   * {@inheritdoc}
   */
  public function getCacheableMetadata() {
    return new CacheableMetadata();
  }

}

Members

Title Modifiers Object type Summary Overriden Title
SessionExistsCacheContext::$requestStack protected property The request stack.
SessionExistsCacheContext::$sessionConfiguration protected property The session configuration.
SessionExistsCacheContext::getCacheableMetadata public function Gets the cacheability metadata for the context. Overrides CacheContextInterface::getCacheableMetadata
SessionExistsCacheContext::getContext public function Returns the string representation of the cache context. Overrides CacheContextInterface::getContext
SessionExistsCacheContext::getLabel public static function Returns the label of the cache context. Overrides CacheContextInterface::getLabel
SessionExistsCacheContext::__construct public function Constructs a new SessionExistsCacheContext class.

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