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| <?php | |
| /** | |
| * @file | |
| * Contains \Drupal\Core\Cache\Context\AccountPermissionsCacheContext. | |
| */ | |
| namespace Drupal\Core\Cache\Context; | |
| use Drupal\Core\Cache\CacheableMetadata; | |
| use Drupal\Core\Session\AccountInterface; | |
| use Drupal\Core\Session\PermissionsHashGeneratorInterface; | |
| /** | |
| * Defines the AccountPermissionsCacheContext service, for "per permission" caching. | |
| * | |
| * Cache context ID: 'user.permissions'. | |
| */ | |
| class AccountPermissionsCacheContext extends UserCacheContextBase implements CacheContextInterface { | |
| /** | |
| * The permissions hash generator. | |
| * | |
| * @var \Drupal\Core\Session\PermissionsHashGeneratorInterface | |
| */ | |
| protected $permissionsHashGenerator; | |
| /** | |
| * Constructs a new UserCacheContext service. | |
| * | |
| * @param \Drupal\Core\Session\AccountInterface $user | |
| * The current user. | |
| * @param \Drupal\Core\Session\PermissionsHashGeneratorInterface $permissions_hash_generator | |
| * The permissions hash generator. | |
| */ | |
| public function __construct(AccountInterface $user, PermissionsHashGeneratorInterface $permissions_hash_generator) { | |
| $this->user = $user; | |
| $this->permissionsHashGenerator = $permissions_hash_generator; | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public static function getLabel() { | |
| return t("Account's permissions"); | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function getContext() { | |
| return $this->permissionsHashGenerator->generate($this->user); | |
| } | |
| /** | |
| * {@inheritdoc} | |
| */ | |
| public function getCacheableMetadata() { | |
| $cacheable_metadata = new CacheableMetadata(); | |
| // The permissions hash changes when: | |
| // - a user is updated to have different roles; | |
| $tags = ['user:' . $this->user->id()]; | |
| // - a role is updated to have different permissions. | |
| foreach ($this->user->getRoles() as $rid) { | |
| $tags[] = "config:user.role.$rid"; | |
| } | |
| return $cacheable_metadata->setCacheTags($tags); | |
| } | |
| } |