Date Compare in YII model search function

View : Search form

label($model,'fromdate'); ?>
          widget('zii.widgets.jui.CJuiDatePicker',array(
                                'id'=>'HolidayHolidayrange_fromdate',
                                'name'=>'HolidayHolidayrange[fromdate]',
                                'value'=>$model->fromdate==''?'':date('d-m-Y',strtotime($model->fromdate)),  
                                'options'=>array(
                                    'dateFormat' => 'dd-mm-yy',
                                    'showAnim'=>'slide',
                                    'showButtonPanel'=>true,
                                    'changeMonth'=>true,
                                    'changeYear'=>true,
                                    'yearRange'=>'1900:'.date('Y'),
                                ),
                                'htmlOptions'=>array(
                                    'style'=>'',
                                    'placeHolder'=>'End Date'
                                ),
                            ));
                            ?>
 

label($model,'todate'); ?>
                widget('zii.widgets.jui.CJuiDatePicker',array(
                                'id'=>'HolidayHolidayrange_todate',
                                'name'=>'HolidayHolidayrange[todate]',
                                'value'=>$model->todate==''?'':date('d-m-Y',strtotime($model->todate)),  
                                'options'=>array(
                                    'dateFormat' => 'dd-mm-yy',
                                    'showAnim'=>'slide',
                                    'showButtonPanel'=>true,
                                    'changeMonth'=>true,
                                    'changeYear'=>true,
                                    'yearRange'=>'1900:'.date('Y'),
                                ),
                                'htmlOptions'=>array(
                                    'style'=>'',
                                    'placeHolder'=>'End Date'
                                ),
                            ));
                            ?>
 

Model's Search function

public function search()
 {
           ....................
        if(!empty($this->fromdate))  
        $criteria->addCondition('fromdate > "'.date("Y-m-d",strtotime($this->fromdate)).'" ');
   
        if(!empty($this->todate))
        $criteria->addCondition('todate < "'.date("Y-m-d",strtotime($this->todate)).'" ');
         .......................
       }

Datepicker disabled date from Database

Model:

class ModelLocalisationDatefixing extends Model { 
     public function getDatefixed() {   
             $query = $this->db->query("SELECT DATE_FORMAT(date, '%Y-%c-%e') AS date FROM " . DB_PREFIX . "date_fix WHERE status='1'");
             return $query->rows;   
      } 
    } 

View:

Delivery Date ( Max 7 days ) : 
 

 
 

Controller:

public function datefixed()
    {  
        $date_string = array();
        $this->load->model('localisation/datefixing');
        $date_info = $this->model_localisation_datefixing->getDatefixed();
        $ddd=array_map('current',$date_info);
        $date_string['dateinfo']=$ddd;
        $this->response->setOutput(json_encode($date_string));
    }