public function PermissionsHashGenerator::generate in Zircon Profile 8

Same name and namespace in other branches

1. 8.0 core/lib/Drupal/Core/Session/PermissionsHashGenerator.php \Drupal\Core\Session\PermissionsHashGenerator::generate()

Cached by role, invalidated whenever permissions change.

Overrides PermissionsHashGeneratorInterface::generate

File

core/lib/Drupal/Core/Session/PermissionsHashGenerator.php, line 62

Contains \Drupal\Core\Session\PermissionsHashGenerator.

Class

PermissionsHashGenerator

Generates and caches the permissions hash for a user.

Namespace

Drupal\Core\Session

Code

public function generate(AccountInterface $account) {

  // User 1 is the super user, and can always access all permissions. Use a
  // different, unique identifier for the hash.
  if ($account
    ->id() == 1) {
    return $this
      ->hash('is-super-user');
  }
  $sorted_roles = $account
    ->getRoles();
  sort($sorted_roles);
  $role_list = implode(',', $sorted_roles);
  $cid = "user_permissions_hash:{$role_list}";
  if ($static_cache = $this->static
    ->get($cid)) {
    return $static_cache->data;
  }
  else {
    $tags = Cache::buildTags('config:user.role', $sorted_roles, '.');
    if ($cache = $this->cache
      ->get($cid)) {
      $permissions_hash = $cache->data;
    }
    else {
      $permissions_hash = $this
        ->doGenerate($sorted_roles);
      $this->cache
        ->set($cid, $permissions_hash, Cache::PERMANENT, $tags);
    }
    $this->static
      ->set($cid, $permissions_hash, Cache::PERMANENT, $tags);
  }
  return $permissions_hash;
}