class PathParentCacheContext in Drupal 8

Defines a cache context service for path parents.

Cache context ID: 'url.path.parent'.

This allows for caching based on the path, excluding everything after the last forward slash.

Hierarchy

• class \Drupal\Core\Cache\Context\RequestStackCacheContextBase
  • class \Drupal\Core\Cache\Context\PathParentCacheContext implements CacheContextInterface

1 file declares its use of PathParentCacheContext

PathParentCacheContextTest.php in core/tests/Drupal/Tests/Core/Cache/Context/PathParentCacheContextTest.php

1 string reference to 'PathParentCacheContext'

core.services.yml in core/core.services.yml

core/core.services.yml

1 service uses PathParentCacheContext

cache_context.url.path.parent in core/core.services.yml

Drupal\Core\Cache\Context\PathParentCacheContext

File

core/lib/Drupal/Core/Cache/Context/PathParentCacheContext.php, line 15

Namespace

Drupal\Core\Cache\Context

class PathParentCacheContext extends RequestStackCacheContextBase implements CacheContextInterface {

  /**
   * {@inheritdoc}
   */
  public static function getLabel() {
    return t('Parent path');
  }

  /**
   * {@inheritdoc}
   */
  public function getContext() {
    $request = $this->requestStack
      ->getCurrentRequest();
    $path_elements = explode('/', trim($request
      ->getPathInfo(), '/'));
    array_pop($path_elements);
    return implode('/', $path_elements);
  }

  /**
   * {@inheritdoc}
   */
  public function getCacheableMetadata() {
    return new CacheableMetadata();
  }

}

Members

Name	Modifiers	Type	Description	Overrides
PathParentCacheContext::getCacheableMetadata	public	function	Gets the cacheability metadata for the context. Overrides CacheContextInterface::getCacheableMetadata
PathParentCacheContext::getContext	public	function	Returns the string representation of the cache context. Overrides CacheContextInterface::getContext
PathParentCacheContext::getLabel	public static	function	Returns the label of the cache context. Overrides CacheContextInterface::getLabel
RequestStackCacheContextBase::$requestStack	protected	property	The request stack.
RequestStackCacheContextBase::__construct	public	function	Constructs a new RequestStackCacheContextBase class.