yii Custom Function Validation

public function rules()
 {
 array('about_open', 'required'),
 array('about_open', 'my_required'),
}

      public function my_required($attribute_name, $params){
     if($this->about_open==6 && $this->other2==''){
             $this->addError('other2',
                 'Please Pleae fill other field');
     }
     else if($this->about_open==5 && $this->other1==''){
             $this->addError('other1','Please Pleae fill other field');
     }
}

Yii radioButtonList template....

$arrayvalue = array('1'=>'I heard about it from a friend', '2'=>'I found it on-line', '3'=>'I received an invitation from Tindercapital', '4'=>'I received an invitation from DRIK RVJN', '5'=>'
I received an invitation from another organisation (Please specify) :', '6'=>'
Others (Please specify)');
echo $form->radioButtonList($model,'about_open',$arrayvalue,
array( 'separator'=>' ', 'template'=>"
{input}{label}
"));

yii multiple table with multiple column search

       $criteria = new CDbCriteria;
       $criteria->compare('fullname',$_GET['User']['keyword'],true,'OR'); // $_GET['User']['keyword'] search field name
       $criteria->compare('email',$_GET['User']['keyword'],true,'OR');
       $criteria->compare('phone',$_GET['User']['keyword'],true,'OR');
       $criteria->compare('presentaddress',$_GET['User']['keyword'],true,'OR');
       $criteria->compare('profession',$_GET['User']['keyword'],true,'OR');
       $criteria->with = array('homedistrict0','bloodgroup0','upozila0'); // Relation name
       $criteria->compare('homedistrict0.name',$_GET['User']['keyword'],true,'OR');
       $criteria->compare('upozila0.name',$_GET['User']['keyword'],true,'OR');
       $criteria->compare('bloodgroup0.name',$_GET['User']['keyword'],true,'OR');
       $criteria->together = true;