public function rules()
{
return array(array('event_id, left_target_iop_id , right_target_iop_id , gonio_id, clinic_interval_id ,
photo_id , oct_id ,hfa_id , hrt_id, comments , eye_id', 'safe'), array('clinic_interval_id, photo_id , oct_id , hfa_id, hrt_id', 'required'), array('left_target_iop_id ', 'requiredIfSide', 'side' => 'left'), array('right_target_iop_id ', 'requiredIfSide', 'side' => 'right'), array('id, event_id, left_target_iop_id , right_target_iop_id , gonio_id, clinic_interval_id ,
photo_id , oct_id , hfa_id , hrt_id, comments , eye_id, ', 'safe', 'on' => 'search'));
}