User role permissions per language

Question

Drupal 8 supports Multilingual (i18n) in core. I was wondering, is it possible to restrict users to be able to add/edit content for only one specific language?

Answer 1

Yes, you can use hook_node_access to control access to add/edit for the node.

For example, you can check the value of:

$language = \Drupal::languageManager()->getCurrentLanguage()->getId();

and return the access result accordingly

Answer 2

Working code example:

use Drupal\node\NodeInterface;
use Drupal\Core\Session\AccountInterface;
use Drupal\Core\Access\AccessResult;

/**
 * Implements hook_node_access().
 *
 * Prevent editor role to edit and/or delete fr/en nodes. Quick and dirty.
 */
function MYMODULE_node_access(NodeInterface $node, $op, AccountInterface $account) {

  $roles = $account->getRoles();

  $current_language = \Drupal::languageManager()->getCurrentLanguage();
  $lang             = $current_language->getId();

  if (!in_array('administrator', $roles) && !in_array('publisher', $roles)) {
    if ($op == 'update' || $op == 'delete') {
      if ($lang == 'en' || $lang == 'fr') {
        return AccessResult::forbidden();
      }
    }
  }

  // No opinion.
  return AccessResult::neutral();
}

Answer 3

The Allowed Languages module makes it possible to set restrictions on which content a user can edit based on language.

https://www.drupal.org/project/allowed_languages

Once installed against each user profile you can check which languages the user can edit as shown below.