eZ\Publish\Core\Repository\RoleService::removeRoleAssignment PHP Метод

    public function removeRoleAssignment(RoleAssignment $roleAssignment)
    {
        if ($this->repository->canUser('role', 'assign', $roleAssignment) !== true) {
            throw new UnauthorizedException('role', 'assign');
        }
        $spiRoleAssignment = $this->userHandler->loadRoleAssignment($roleAssignment->id);
        $this->repository->beginTransaction();
        try {
            $this->userHandler->removeRoleAssignment($spiRoleAssignment->id);
            $this->repository->commit();
        } catch (Exception $e) {
            $this->repository->rollback();
            throw $e;
        }
    }