og-8.x-1.x-dev/og_ui/src/Form/OgRolePermissionsForm.php

<?php

declare(strict_types=1);

namespace Drupal\og_ui\Form;

use Drupal\Core\Form\FormStateInterface;
use Drupal\og\Entity\OgRole;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;

/**
 * Provide the group permissions form.
 */
class OgRolePermissionsForm extends OgPermissionsForm {

  /**
   * {@inheritdoc}
   */
  public function getFormId() {
    return 'group_role_permissions';
  }

  /**
   * Title callback for the roles overview page.
   *
   * @param string $entity_type_id
   *   The group entity type id.
   * @param string $bundle_id
   *   The group bundle id.
   * @param string $role_name
   *   The group role name.
   *
   * @return \Drupal\Core\StringTranslation\TranslatableMarkup
   *   The role permission form title.
   */
  public function rolePermissionTitleCallback($entity_type_id, $bundle_id, $role_name) {
    $role_id = implode('-', [
      $entity_type_id,
      $bundle_id,
      $role_name,
    ]);

    $role = OgRole::load($role_id);
    if (!$role) {
      throw new NotFoundHttpException();
    }

    return $this->t('@bundle roles - @role permissions', [
      '@bundle' => $this->entityTypeBundleInfo->getBundleInfo($entity_type_id)[$bundle_id]['label'],
      '@role' => $role->getLabel(),
    ]);
  }

  /**
   * The group role permissions form constructor.
   *
   * @param array $form
   *   An associative array containing the structure of the form.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The current state of the form.
   * @param string $entity_type_id
   *   The group entity type id.
   * @param string $bundle_id
   *   The group bundle id.
   * @param string $role_name
   *   The group role name.
   *
   * @return array
   *   The form structure.
   */
  public function buildForm(array $form, FormStateInterface $form_state, $entity_type_id = '', $bundle_id = '', $role_name = '') {
    if ($role_name) {
      $role_id = implode('-', [
        $entity_type_id,
        $bundle_id,
        $role_name,
      ]);

      $role = OgRole::load($role_id);
      // If the role doesn't exist, throw 404.
      if (!$role) {
        throw new NotFoundHttpException();
      }
      else {
        // Show only role requested.
        $this->roles = [$role->id() => $role];
      }
    }

    return parent::buildForm($form, $form_state, $entity_type_id, $bundle_id);
  }

}