Your IP : 216.73.216.224
<?php
/**
* @package Komento
* @copyright Copyright (C) Stack Ideas Sdn Bhd. All rights reserved.
* @license GNU/GPL, see LICENSE.php
* Komento is free software. This version may have been modified pursuant
* to the GNU General Public License, and as distributed it includes or
* is derivative of works licensed under the GNU General Public License or
* other free or open source software licenses.
* See COPYRIGHT.php for copyright notices and details.
*/
defined('_JEXEC') or die('Unauthorized Access');
jimport('joomla.filesystem.file');
class com_KomentoInstallerScript
{
/**
* Triggered after the installation is completed
*
* @since 3.1.0
* @access public
*/
public function postflight()
{
ob_start();
include(__DIR__ . '/setup.html');
$contents = ob_get_contents();
ob_end_clean();
echo $contents;
}
/**
* Triggered before the installation is complete
*
* @since 3.0
* @access public
*/
public function preflight()
{
// During the preflight, we need to create a new installer file in the temporary folder
$file = JPATH_ROOT . '/tmp/komento.installation';
// Determines if the installation is a new installation or old installation.
$obj = new stdClass();
$obj->new = false;
$obj->step = 1;
$obj->status = 'installing';
$contents = json_encode($obj);
if (!JFile::exists($file)) {
JFile::write($file, $contents);
}
if ($this->isUpgradeFrom2x()) {
// Remove old constant file
$this->removeConstantFile();
// Remove old class files
$this->removeOldClasses();
// remove older helper files
$this->removeOldHelpers();
// remove older model files
$this->removeOldModels();
}
// now let check the eb config
$this->checkKTVersionConfig();
}
/**
* Responsible to remove old constant.php file to avoid redefine of same constant error
*
* @since 3.0
* @access public
*/
public function removeConstantFile()
{
$file = JPATH_ROOT. '/components/com_komento/constants.php';
if (JFile::exists($file)) {
JFile::delete($file);
}
}
/**
* Responsible to remove old helper files
*
* @since 3.0
* @access public
*/
public function removeOldHelpers()
{
// helpers
$path = JPATH_ROOT . '/components/com_komento/helpers';
if (JFolder::exists($path)) {
JFolder::delete($path);
}
}
/**
* Responsible to remove old model files
*
* @since 3.0
* @access public
*/
public function removeOldModels()
{
// models
$path = JPATH_ROOT . '/components/com_komento/models';
if (JFolder::exists($path)) {
JFolder::delete($path);
}
}
/**
* Responsible to remove old class files
*
* @since 3.0
* @access public
*/
public function removeOldClasses()
{
// classes
$path = JPATH_ROOT . '/components/com_komento/classes';
if (JFolder::exists($path)) {
JFolder::delete($path);
}
}
/**
* Responsible to check eb configs db version
*
* @since 3.0
* @access public
*/
public function checkKTVersionConfig()
{
// If there is the config table but no dbversion, we know this upgrade is coming from pior 3.0. lets add on dbversion into config table.
if ($this->isUpgradeFrom2x()) {
// Get current installed kt version.
$xmlfile = JPATH_ROOT. '/administrator/components/com_komento/komento.xml';
// Set this to version prior 2.0 so that it will execute the db script
// This upgrade is from very old version.
$version = '1.0.0';
if (JFile::exists($xmlfile)) {
$contents = file_get_contents($xmlfile);
$parser = simplexml_load_string($contents);
$version = $parser->xpath('version');
$version = (string) $version[0];
}
$db = JFactory::getDBO();
// First, we need to add new 'name' column if this is upgrade from 2.0
$query = 'ALTER TABLE ' . $db->quoteName('#__komento_configs') . ' ADD COLUMN `name` varchar(255) NOT NULL FIRST';
$db->setQuery($query);
$db->execute();
$columns = $this->getColumns('#__komento_configs');
// Remove component column from configs table first
if (in_array('component', $columns)) {
$query = 'ALTER TABLE `#__komento_configs` DROP COLUMN `component`';
$db->setQuery($query);
$db->execute();
}
// Ok, now we got the version. lets add this version into dbversion.
$query = 'INSERT INTO ' . $db->quoteName('#__komento_configs') . ' (`name`, `params`) VALUES';
$query .= ' (' . $db->Quote('dbversion') . ',' . $db->Quote($version) . '),';
$query .= ' (' . $db->Quote('scriptversion') . ',' . $db->Quote($version) . ')';
$db->setQuery($query);
$db->execute();
}
}
/**
* Retrieve table columns
*
* @since 4.0.4
* @access private
*/
public function getColumns($tableName)
{
$db = JFactory::getDBO();
$query = 'SHOW FIELDS FROM ' . $db->quoteName($tableName);
$db->setQuery($query);
$rows = $db->loadObjectList();
$fields = array();
foreach ($rows as $row) {
$fields[] = $row->Field;
}
return $fields;
}
private function isUpgradeFrom2x()
{
static $isUpgrade = null;
if (is_null($isUpgrade)) {
$isUpgrade = false;
$db = JFactory::getDBO();
$jConfig = JFactory::getConfig();
$prefix = $jConfig->get('dbprefix');
$query = "SHOW TABLES LIKE '%" . $prefix . "komento_configs%'";
$db->setQuery($query);
$result = $db->loadResult();
if ($result) {
// this is an upgrade. lets check if the upgrade from 2.x or not.
$query = 'SHOW COLUMNS FROM ' . $db->quoteName('#__komento_configs') . ' LIKE ' . $db->Quote('name');
$db->setQuery($query);
$exists = $db->loadResult();
if (!$exists) {
$isUpgrade = true;
}
}
}
return $isUpgrade;
}
/**
* Responsible to perform the uninstallation
*
* @since 1.0
* @access public
*/
public function uninstall()
{
}
/**
* Responsible to perform component updates
*
* @since 1.0
* @access public
*/
public function update()
{
}
}