/**
  * Update Caption Params by ID
  * 
  * @action update
  * @param int $id
  * @param KalturaCaptionParams $captionParams
  * @return KalturaCaptionParams
  */
 public function updateAction($id, KalturaCaptionParams $captionParams)
 {
     if ($captionParams->name !== null) {
         $captionParams->validatePropertyMinLength("name", 1);
     }
     $captionParamsDb = assetParamsPeer::retrieveByPK($id);
     if (!$captionParamsDb) {
         throw new KalturaAPIException(KalturaErrors::FLAVOR_PARAMS_ID_NOT_FOUND, $id);
     }
     $captionParams->toUpdatableObject($captionParamsDb);
     $captionParamsDb->save();
     $captionParams->fromObject($captionParamsDb);
     return $captionParams;
 }