public static function update($id)
 {
     $params = $_POST;
     $attributes = array('id' => $id, 'description' => $params['description'], 'time' => $params['time'], 'place' => $params['place']);
     $Event = new Event($attributes);
     $errors = $Event->errors();
     if (count($errors) != 0) {
         View::make('/Event/edit.html', array('errors' => $errors, 'attributes' => $attributes));
     } else {
         $Event->update();
         Redirect::to('/event/' . $Event->id, array('message' => 'Tapahtumaa on muokattu onnistuneesti!'));
     }
 }