public function actionReturn($id)
{
/**
* @var $model Borrow
*/
$model = Borrow::model()->findByPk($id);
$model->return_date = date('Y-m-d');
$model->save();
if (strtotime($model->return_date) > strtotime($model->due_date)) {
echo 'bad';
} else {
echo 'good';
}
}
