$photos->mon_id = $model->id;
$photos->image = CUploadedFile::getInstance($photos, 'image_name');
$photos->image->saveAs(Yii::app()->request->baseUrl . '/uploads/monument_images/' . $photos->image->name);
$photos->image_name = $photos->image->name;

//$photos->attributes = $_POST['MonumentPhotos'];
if(!$photos->save()) print_r($photos->errors);