How to programmatically enable and set taxonomy access control for role

Question

I want to be able to programmatically enable and set taxonomy access control for the anonymous and authenticated roles. Specifically, I want to deny anonymous and authenticated users from being able to view or edit nodes tagged with a particular term. I know how to do this through the admin interface. But I'd like to be able to do this programmatically.

I can see functions to get the grants for a particular role, but not set them.

Thanks!

Answer 1

/**
 * Implements hook_node_access().
 */
function accommodation_node_access(\Drupal\node\NodeInterface $node, $op, \Drupal\Core\Session\AccountInterface $account) {
  if ($node->bundle() == 'accommodation' && \Drupal::currentUser()->isAuthenticated())  {
    if ($node->get('field_accommodation_category')->entity->getName() == 'Category 1') {
      return \Drupal\Core\Access\AccessResult::allowed();
    }

    return \Drupal\Core\Access\AccessResult::forbidden();
  }

  return \Drupal\Core\Access\AccessResult::neutral();
}

Answer 2

Check these two modules, both do your task.
Permissions by Term (Drupal 8/9)
Taxonomy Access Control Lite (D7 & D8/9)

Answer 3

Check out this page: http://drupalcontrib.org/api/drupal/contributions!taxonomy_access!taxonomy_access.module/group/tac_grant_api/

I'm currently attempting to implement the same functionality and it seems that this provides everything I need.