Multimodelform Extension-Member Validation Issue

I am trying to use multimodelform extension to save one-to-many record set but it does not save records in both tables. The reason is, it was unable to validate "member" records. If I remove validation check, it saves the group (master) record without child records. Could some one give me a tip to solve this issue.

this is my actionCreate()

public function actionCreate()

{

Yii::import('ext.multimodelform.MultiModelForm');


$model = new TblCalculation;


$member = new TblClaim;


$validatedMembers = array();  //ensure an empty array


if(isset($_POST['TblCalculation']))


{


    $model->attributes=$_POST['TblCalculation'];


    if( //validate detail before saving the master


        MultiModelForm::validate($member,$validatedMembers,$deleteItems) && $model->save()) {


         //the value for the foreign key 'groupid'


         $masterValues = array ('calID'=>$model->id);


         if (MultiModelForm::save($member,$validatedMembers,$deleteMembers,$masterValues))


            $this->redirect(array('view','id'=>$model->id));


    }


}

$this->render(‘create’,array(…

This is my view (../tblCalculation/_form.php)

$memberFormConfig = array(

  'elements'=>array(


    'reason'=>array('type'=>'text','size'=>10,'maxlength'=>40,),


    'timeDeparture'=>array('type'=>'text','size'=>16,'maxlength'=>20,),


    'timeArrival'=>array('type'=>'text','size'=>16,'maxlength'=>20,),


    'travelFrom'=>array('type'=>'text','size'=>10, 'maxlength'=>40,),


    'travelTo'=>array('type'=>'text','size'=>10, 'maxlength'=>40,),


    'distance'=>array('type'=>'text','size'=>10, 'maxlength'=>10,),


    'comment'=>array('type'=>'text','size'=>10, 'maxlength'=>30,),


));

$this->widget(‘ext.multimodelform.MultiModelForm’,array(

    'tableView'=> true,


    'id' => 'id_member', //the unique widget id


    'formConfig' => $memberFormConfig, //the form configuration array


    'model' => $member, //instance of the form model





    //if submitted not empty from the controller,


    //the form will be rendered with validation errors


    'validatedItems' => $validatedMembers,





    //array of member instances loaded from db


    'data' => $member->findAll('calID=:id', array(':id'=>$model->id)),


));

?>