public static function update()
 {
     $params = $_POST;
     $attributes = array('name' => $params['name'], 'hashtags' => $params['hashtags'], 'description' => $params['description']);
     $request = new Request($attributes);
     $errors = $request->errors();
     if (count($errors) > 0) {
         View::make('request/edit.html', array('errors' => $errors, 'attributes' => $attributes));
     } else {
         $request->update();
         Redirect::to('/request/' . $request->id, array('message' => 'The request has been succesfully edited'));
     }
 }