public function modifyPlacementAction($farmRoleId)
{
$role = $this->getFarmRole($farmRoleId, null, true);
FarmRoleAdapter::setupPlacementConfiguration($role, $this->request->getJsonBody());
/* @var $farmRoleAdapter FarmRoleAdapter */
$farmRoleAdapter = $this->adapter('farmRole');
$farmRoleAdapter->validateEntity($role);
$role->save();
return $this->result(FarmRoleAdapter::getPlacementConfiguration($role));
}