class DenyNodePreview in Drupal 9

Cache policy for node preview page.

This policy rule denies caching of responses generated by the entity.node.preview route.

Hierarchy

• class \Drupal\node\PageCache\DenyNodePreview implements ResponsePolicyInterface

1 file declares its use of DenyNodePreview

DenyNodePreviewTest.php in core/modules/node/tests/src/Unit/PageCache/DenyNodePreviewTest.php

1 string reference to 'DenyNodePreview'

node.services.yml in core/modules/node/node.services.yml

core/modules/node/node.services.yml

1 service uses DenyNodePreview

node.page_cache_response_policy.deny_node_preview in core/modules/node/node.services.yml

Drupal\node\PageCache\DenyNodePreview

File

core/modules/node/src/PageCache/DenyNodePreview.php, line 16

Namespace

Drupal\node\PageCache

class DenyNodePreview implements ResponsePolicyInterface {

  /**
   * The current route match.
   *
   * @var \Drupal\Core\Routing\RouteMatchInterface
   */
  protected $routeMatch;

  /**
   * Constructs a deny node preview page cache policy.
   *
   * @param \Drupal\Core\Routing\RouteMatchInterface $route_match
   *   The current route match.
   */
  public function __construct(RouteMatchInterface $route_match) {
    $this->routeMatch = $route_match;
  }

  /**
   * {@inheritdoc}
   */
  public function check(Response $response, Request $request) {
    if ($this->routeMatch
      ->getRouteName() === 'entity.node.preview') {
      return static::DENY;
    }
  }

}

Members

Name	Modifiers	Type	Description	Overrides
DenyNodePreview::$routeMatch	protected	property	The current route match.
DenyNodePreview::check	public	function	Determines whether it is save to store a page in the cache. Overrides ResponsePolicyInterface::check
DenyNodePreview::__construct	public	function	Constructs a deny node preview page cache policy.
ResponsePolicyInterface::DENY		constant	Deny storage of a page in the cache.