<?php

/**
 * @file UpgradeForm.inc.php
 *
 * Copyright (c) 2000-2008 John Willinsky
 * Distributed under the GNU GPL v2. For full terms see the file docs/COPYING.
 *
 * @package install.form
 * @class UpgradeForm
 *
 * Form for system upgrades.
 *
 * $Id: UpgradeForm.inc.php,v 1.6 2008/04/04 17:06:45 asmecher Exp $
 */

import('install.Upgrade');
import('form.Form');

class UpgradeForm extends Form {

	/**
	 * Constructor.
	 */
	function UpgradeForm() {
		parent::Form('install/upgrade.tpl');
		$this->addCheck(new FormValidatorPost($this));
	}

	/**
	 * Display the form.
	 */
	function display() {
		$templateMgr = &TemplateManager::getManager();
		$templateMgr->assign_by_ref('version', VersionCheck::getCurrentCodeVersion());

		parent::display();
	}

	/**
	 * Assign form data to user-submitted data.
	 */
	function readInputData() {
		$this->readUserVars(array(
			'manualInstall'
		));
	}

	/**
	 * Perform installation.
	 */
	function execute() {
		$templateMgr = &TemplateManager::getManager();
		$installer = &new Upgrade($this->_data);

		// FIXME Use logger?

		// FIXME Mostly common with InstallForm

		if ($installer->execute()) {
			if ($this->getData('manualInstall')) {
				// Display SQL statements that would have been executed during installation
				$templateMgr->assign(array('manualInstall' => true, 'installSql' => $installer->getSQL()));

			}
			if (!$installer->wroteConfig()) {
				// Display config file contents for manual replacement
				$templateMgr->assign(array('writeConfigFailed' => true, 'configFileContents' => $installer->getConfigContents()));
			}

			$templateMgr->assign('notes', $installer->getNotes());
			$templateMgr->assign_by_ref('newVersion', $installer->getNewVersion());
			$templateMgr->display('install/upgradeComplete.tpl');

		} else {
			switch ($installer->getErrorType()) {
				case INSTALLER_ERROR_DB:
					$this->dbInstallError($installer->getErrorMsg());
					break;
				default:
					$this->installError($installer->getErrorMsg());
					break;
			}
		}

		$installer->destroy();
	}

	// FIXME Common with InstallForm

	/**
	 * Fail with a generic installation error.
	 * @param $errorMsg string
	 */
	function installError($errorMsg) {
		$templateMgr = &TemplateManager::getManager();
		$templateMgr->assign(array('isInstallError' => true, 'errorMsg' => $errorMsg));
		$this->display();
	}

	/**
	 * Fail with a database installation error.
	 * @param $errorMsg string
	 */
	function dbInstallError($errorMsg) {
		$templateMgr = &TemplateManager::getManager();
		$templateMgr->assign(array('isInstallError' => true, 'dbErrorMsg' => empty($errorMsg) ? Locale::translate('common.error.databaseErrorUnknown') : $errorMsg));
		$this->display();
	}

}

?>