class PreviewLinkCacheContext in Preview Link 8

Defines a class for a preview link cache context.

Hierarchy

• class \Drupal\preview_link\PreviewLinkCacheContext implements CacheContextInterface

1 string reference to 'PreviewLinkCacheContext'

preview_link.services.yml in ./preview_link.services.yml

preview_link.services.yml

1 service uses PreviewLinkCacheContext

cache_context.preview_link_route in ./preview_link.services.yml

Drupal\preview_link\PreviewLinkCacheContext

File

src/PreviewLinkCacheContext.php, line 12

Namespace

Drupal\preview_link

class PreviewLinkCacheContext implements CacheContextInterface {

  /**
   * Route match.
   *
   * @var \Drupal\Core\Routing\RouteMatchInterface
   */
  protected $routeMatch;

  /**
   * Constructs a new PreviewLinkCacheContext.
   *
   * @param \Drupal\Core\Routing\RouteMatchInterface $routeMatch
   *   Route match.
   */
  public function __construct(RouteMatchInterface $routeMatch) {
    $this->routeMatch = $routeMatch;
  }

  /**
   * {@inheritdoc}
   */
  public static function getLabel() {
    return 'Is preview link route';
  }

  /**
   * {@inheritdoc}
   */
  public function getContext() {
    return ($route = $this->routeMatch
      ->getRouteObject()) && $route
      ->getOption('_preview_link_route') ?: FALSE;
  }

  /**
   * {@inheritdoc}
   */
  public function getCacheableMetadata() {
    return (new CacheableMetadata())
      ->addCacheTags([
      'routes',
    ]);
  }

}

Members

Name	Modifiers	Type	Description	Overrides
PreviewLinkCacheContext::$routeMatch	protected	property	Route match.
PreviewLinkCacheContext::getCacheableMetadata	public	function	Gets the cacheability metadata for the context. Overrides CacheContextInterface::getCacheableMetadata
PreviewLinkCacheContext::getContext	public	function	Returns the string representation of the cache context. Overrides CacheContextInterface::getContext
PreviewLinkCacheContext::getLabel	public static	function	Returns the label of the cache context. Overrides CacheContextInterface::getLabel
PreviewLinkCacheContext::__construct	public	function	Constructs a new PreviewLinkCacheContext.