<?php
/**
 * Magento
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://opensource.org/licenses/osl-3.0.php
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@magentocommerce.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade Magento to newer
 * versions in the future. If you wish to customize Magento for your
 * needs please refer to http://www.magentocommerce.com for more information.
 *
 * @category    Mage
 * @package     Mage_Directory
 * @copyright   Copyright (c) 2012 Magento Inc. (http://www.magentocommerce.com)
 * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */


/**
 * Directory Country Resource Model
 *
 * @category    Mage
 * @package     Mage_Directory
 * @author      Magento Core Team <core@magentocommerce.com>
 */
class Mage_Directory_Model_Resource_Country extends Mage_Core_Model_Resource_Db_Abstract
{
    /**
     * Resource initialization
     *
     */
    protected function _construct()
    {
        $this->_init('directory/country', 'country_id');
    }

    /**
     * Load country by ISO code
     *
     * @param Mage_Directory_Model_Country $country
     * @param string $code
     *
     * @throws Mage_Core_Exception
     * 
     * @return Mage_Directory_Model_Resource_Country
     */
    public function loadByCode(Mage_Directory_Model_Country $country, $code)
    {
        switch (strlen($code)) {
            case 2:
                $field = 'iso2_code';
                break;

            case 3:
                $field = 'iso3_code';
                break;

            default:
                Mage::throwException(Mage::helper('directory')->__('Invalid country code: %s', $code));
        }

        return $this->load($country, $code, $field);
    }
}