public function actionAttachWidget()
 {
     $request = Yii::app()->request;
     if (($channelId = $request->getParam('channelId')) && ($widgetId = $request->getParam('widgetId'))) {
         $model = new WidgetToChannel();
         $model->attributes = array('channel_id' => $channelId, 'widget_id' => $widgetId);
         if ($model->save()) {
             echo json_encode(array('status' => 'ok'));
         } else {
             echo json_encode(array('status' => 'err', 'error' => 'Error during attaching widget'));
         }
     } else {
         echo json_encode(array('status' => 'err', 'error' => 'Incorrect POST data during AttachWidget action'));
     }
 }