Indicates whether the block should be shown.

Blocks with specific access checking should override this method rather than access(), in order to avoid repeating the handling of the $return_as_object argument.

Parameters

\Drupal\Core\Session\AccountInterface $account: The user session for which to check access.

Return value

\Drupal\Core\Access\AccessResultInterface The access result.

Overrides BlockPluginTrait::blockAccess

File

modules/ctools_block/src/Plugin/Block/EntityField.php, line 156

Class

EntityField

Provides a block to a field on an entity.

Namespace

Drupal\ctools_block\Plugin\Block

Code

protected function blockAccess(AccountInterface $account) {
  /** @var \Drupal\Core\Entity\EntityInterface $entity */
  $entity = $this->getContextValue('entity');
  // Make sure we have access to the entity.
  $access = $entity->access('view', $account, TRUE);
  if ($access->isAllowed()) {
    // Check that the entity in question has this field.
    if ($entity instanceof FieldableEntityInterface && $entity->hasField($this->fieldName)) {
      // Check field access.
      $field_access = $this->entityTypeManager
        ->getAccessControlHandler($this->entityTypeId)
        ->fieldAccess('view', $this->getFieldDefinition(), $account);
      if ($field_access) {
        // Build a renderable array for the field.
        $build = $entity->get($this->fieldName)
          ->view($this->configuration['formatter']);
        // If there are actual renderable children, grant access.
        if (Element::children($build)) {
          return AccessResult::allowed();
        }
      }
    }
    // Entity doesn't have this field, so access is denied.
    return AccessResult::forbidden();
  }
  // If we don't have access to the entity, return the forbidden result.
  return $access;
}