khosb/modules/charge/classes/model/charge.php

<?php defined('SYSPATH') or die('No direct access allowed.');

/**
 * This class provides charge item capabilities.
 *
 * @package    OSB
 * @subpackage Charge
 * @category   Models
 * @author     Deon George
 * @copyright  (c) 2010 Open Source Billing
 * @license    http://dev.osbill.net/license.html
 */
class Model_Charge extends ORMOSB {
	protected $_display_filters = array(
		'amount'=>array(
			'Currency::display',array(':value')
		),
	);

	/**
	 * Render some details for specific calls, eg: invoice
	 */
	public function details($type) {
		switch ($type) {
			case 'invoice':
				return sprintf('%s (%s@%s)',$this->description,$this->quantity,Currency::display($this->amount));

			default:
				throw new Kohana_Exception('Unkown detail request :type',array(':type'=>$type));
		}
	}
}
?>