<?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_Adminhtml
 * @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)
 */


/**
 * Adminhtml Directory currency backend model
 *
 * Allows dispatching before and after events for each controller action
 *
 * @category   Mage
 * @package    Mage_Adminhtml
 * @author     Magento Core Team <core@magentocommerce.com>
 */
class Mage_Adminhtml_Model_System_Config_Backend_Currency_Allow extends Mage_Adminhtml_Model_System_Config_Backend_Currency_Abstract
{
    /**
     * Check is isset default display currency in allowed currencies
     * Check allowed currencies is available in installed currencies
     *
     * @return Mage_Adminhtml_Model_System_Config_Backend_Currency_Allow
     */
    protected function _afterSave()
    {
        $exceptions = array();
        foreach ($this->_getAllowedCurrencies() as $currencyCode) {
            if (!in_array($currencyCode, $this->_getInstalledCurrencies())) {
                $exceptions[] = Mage::helper('adminhtml')->__('Selected allowed currency "%s" is not available in installed currencies.', Mage::app()->getLocale()->currency($currencyCode)->getName());
            }
        }

        if (!in_array($this->_getCurrencyDefault(), $this->_getAllowedCurrencies())) {
            $exceptions[] = Mage::helper('adminhtml')->__('Default display currency "%s" is not available in allowed currencies.', Mage::app()->getLocale()->currency($this->_getCurrencyDefault())->getName());
        }

        if ($exceptions) {
            Mage::throwException(join("\n", $exceptions));
        }

        return $this;
    }
}