将错误传递给视图

我使用的是kohana 3.3和kostach。请帮我做这个。如何将错误传递给视图。

控制器

public function action_add()
    {
        $renderer = Kostache_Layout::factory();
        $view = new View_Pages_Album_List();    
        try
        {
        $album = ORM::factory('Album_Information');
        $album_name = $this->request->post('inputAlbum');
        $artist = $this->request->post('inputArtist');
        $album->Album_Name = $album_name;
        $album->Artist = $artist;
        $album->save();
        }
        catch (ORM_Validation_Exception $e)
        {
            $errors = $e->errors('models');
            $view->errors = $errors;
        }
        $this->response->body($renderer->render($view));
    }

模板文件

<h3>Add A New Album</h3>
<form method="POST" action="album/add">
<label>Album Name:</label>
<input type="text" name="inputAlbum" /><br />
<label>Artist:</label>
<input type="text" name="inputArtist" /><br />
<input type="submit" name="submit" value="Add" />
</form>
{{errors}}

规则

public function rules()
    {
        return array(
                'inputAlbum' => array(
                    array('not_empty'),
                    ),
                'inputArtist' => array(
                    array('not_empty'),
                    ),
        );
    }

消息

<?php defined('SYSPATH') or die('No Direct Script Access');
return array(
            'not_empty' =>  ':field must not be empty',
    );

每次我点击提交按钮，我都不会收到任何错误。我得到的是数组到字符串的转换问题。