Validation without exceptions

blog.php

<?php defined('SYSPATH') or die('No direct script access.');
class Controller_Page extends Controller {

	public function action_unpublish()
	{
		$validation = Model_Page::unpublish($this->request->param('id'), $this->user);
			
		if ($errors = $validation->errors())
		{
			$this->response->body(
				Debug::dump($errors)
			);
		}
		
		// On success redirect elsewhere
		$this->request->redirect(
			Route::get('page')->uri()
		);
	}
	
}

page.php

<?php defined('SYSPATH') or die('No direct script access.');
class Model_Page extends ORM {

	public static function unpublish($id, $user)
	{
		$page = ORM::factory('page', $id)
			->values(array(
				'status'         => 2,
				'last_edited_by' => $user->id,
			));
		
		$validation = $page->validation();
		
		if ($validation->check())
		{
			$page->save();
		}
	
		return $validation;
	}

}