eZ\Publish\Core\Repository\RoleService::publishRoleDraft PHP Method

    public function publishRoleDraft(APIRoleDraft $roleDraft)
    {
        if ($this->repository->hasAccess('role', 'update') !== true) {
            throw new UnauthorizedException('role', 'update');
        }
        try {
            $loadedRoleDraft = $this->loadRoleDraft($roleDraft->id);
        } catch (APINotFoundException $e) {
            throw new BadStateException('$roleDraft', 'The role does not have a draft.', $e);
        }
        // TODO: Uncomment when role policy editing is done, see EZP-24711 & EZP-24713
        /*if (count($loadedRoleDraft->getPolicies()) === 0) {
              throw new InvalidArgumentException(
                  "\$roleDraft",
                  'The role draft should have at least one policy.'
              );
          }*/
        $this->repository->beginTransaction();
        try {
            $this->userHandler->publishRoleDraft($loadedRoleDraft->id);
            $this->repository->commit();
        } catch (Exception $e) {
            $this->repository->rollback();
            throw $e;
        }
    }