app/bundles/UserBundle/Controller/Api/RoleApiController.php

<?php

namespace Mautic\UserBundle\Controller\Api;

use Doctrine\Persistence\ManagerRegistry;
use Mautic\ApiBundle\Controller\CommonApiController;
use Mautic\ApiBundle\Helper\EntityResultHelper;
use Mautic\CoreBundle\Factory\MauticFactory;
use Mautic\CoreBundle\Factory\ModelFactory;
use Mautic\CoreBundle\Helper\AppVersion;
use Mautic\CoreBundle\Helper\CoreParametersHelper;
use Mautic\CoreBundle\Security\Permissions\CorePermissions;
use Mautic\CoreBundle\Translation\Translator;
use Mautic\UserBundle\Entity\Role;
use Mautic\UserBundle\Model\RoleModel;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Symfony\Component\Form\FormFactoryInterface;
use Symfony\Component\HttpFoundation\RequestStack;
use Symfony\Component\Routing\RouterInterface;

/**
 * @extends CommonApiController<Role>
 */
class RoleApiController extends CommonApiController
{
    /**
     * @var RoleModel|null
     */
    protected $model;

    public function __construct(CorePermissions $security, Translator $translator, EntityResultHelper $entityResultHelper, RouterInterface $router, FormFactoryInterface $formFactory, AppVersion $appVersion, RequestStack $requestStack, ManagerRegistry $doctrine, ModelFactory $modelFactory, EventDispatcherInterface $dispatcher, CoreParametersHelper $coreParametersHelper, MauticFactory $factory)
    {
        $roleModel = $modelFactory->getModel('user.role');
        \assert($roleModel instanceof RoleModel);

        $this->model            = $roleModel;
        $this->entityClass      = Role::class;
        $this->entityNameOne    = 'role';
        $this->entityNameMulti  = 'roles';
        $this->serializerGroups = ['roleDetails', 'publishDetails'];

        parent::__construct($security, $translator, $entityResultHelper, $router, $formFactory, $appVersion, $requestStack, $doctrine, $modelFactory, $dispatcher, $coreParametersHelper, $factory);
    }

    /**
     * @param \Mautic\LeadBundle\Entity\Lead &$entity
     * @param string                         $action
     */
    protected function preSaveEntity(&$entity, $form, $parameters, $action = 'edit')
    {
        if (isset($parameters['rawPermissions'])) {
            $this->model->setRolePermissions($entity, $parameters['rawPermissions']);
        }
    }
}