RoleForm.php

<?php

namespace Drupal\user;

use Drupal\Core\Config\Entity\ConfigEntityStorage;
use Drupal\Core\Entity\EntityForm;
use Drupal\Core\Form\FormStateInterface;

/**
 * Form controller for the role entity edit forms.
 *
 * @internal
 */
class RoleForm extends EntityForm {
  
  /**
   * {@inheritdoc}
   */
  public function form(array $form, FormStateInterface $form_state) {
    $entity = $this->entity;
    $form['label'] = [
      '#type' => 'textfield',
      '#title' => $this->t('Role name'),
      '#default_value' => $entity->label(),
      '#size' => 30,
      '#required' => TRUE,
      '#maxlength' => 64,
      '#description' => $this->t('The name for this role. Example: "Moderator", "Editorial board", "Site architect".'),
    ];
    $form['id'] = [
      '#type' => 'machine_name',
      '#default_value' => $entity->id(),
      '#required' => TRUE,
      '#disabled' => !$entity->isNew(),
      '#size' => 30,
      '#maxlength' => ConfigEntityStorage::MAX_ID_LENGTH,
      '#machine_name' => [
        'exists' => [
          '\\Drupal\\user\\Entity\\Role',
          'load',
        ],
      ],
    ];
    $form['weight'] = [
      '#type' => 'value',
      '#value' => $entity->getWeight(),
    ];
    return parent::form($form, $form_state);
  }
  
  /**
   * {@inheritdoc}
   */
  public function save(array $form, FormStateInterface $form_state) {
    $entity = $this->entity;
    // Prevent leading and trailing spaces in role names.
    $entity->set('label', trim($entity->label()));
    $status = $entity->save();
    // Create actions but ignore the authenticated and anonymous roles.
    if (!in_array($entity->id(), [
      RoleInterface::AUTHENTICATED_ID,
      RoleInterface::ANONYMOUS_ID,
    ])) {
      $type_manager = $this->entityTypeManager
        ->getStorage('action');
      $add_id = 'user_add_role_action.' . $entity->id();
      if (!$type_manager->load($add_id)) {
        $action = $type_manager->create([
          'id' => $add_id,
          'type' => 'user',
          'label' => $this->t('Add the @label role to the selected users', [
            '@label' => $entity->label(),
          ]),
          'configuration' => [
            'rid' => $entity->id(),
          ],
          'plugin' => 'user_add_role_action',
        ]);
        $action->save();
      }
      $remove_id = 'user_remove_role_action.' . $entity->id();
      if (!$type_manager->load($remove_id)) {
        $action = $type_manager->create([
          'id' => $remove_id,
          'type' => 'user',
          'label' => $this->t('Remove the @label role from the selected users', [
            '@label' => $entity->label(),
          ]),
          'configuration' => [
            'rid' => $entity->id(),
          ],
          'plugin' => 'user_remove_role_action',
        ]);
        $action->save();
      }
    }
    $edit_link = $this->entity
      ->toLink($this->t('Edit'), 'edit-form')
      ->toString();
    if ($status == SAVED_UPDATED) {
      $this->messenger()
        ->addStatus($this->t('Role %label has been updated.', [
        '%label' => $entity->label(),
      ]));
      $this->logger('user')
        ->info('Role %label has been updated.', [
        '%label' => $entity->label(),
        'link' => $edit_link,
      ]);
    }
    else {
      $this->messenger()
        ->addStatus($this->t('Role %label has been added.', [
        '%label' => $entity->label(),
      ]));
      $this->logger('user')
        ->info('Role %label has been added.', [
        '%label' => $entity->label(),
        'link' => $edit_link,
      ]);
    }
    $form_state->setRedirect('entity.user_role.collection');
  }

}