/**
* Loads the configuration and works as singleton therefore called static. The call using the program cache
* is 10 times faster then taking from the session. The session is still approx. 30 times faster then using the file.
* The db is 10 times slower then the session.
*
* Performance:
*
* Fastest is
* Program Cache: 1.5974044799805E-5
* Session Cache: 0.00016094612121582
*
* First config db load: 0.00052118301391602
* Parsed and in session: 0.001554012298584
*
* After install from file: 0.0040450096130371
* Parsed and in session: 0.0051419734954834
*
*
* Functions tests if already loaded in program cache, session cache, database and at last the file.
*
* Load the configuration values from the database into a session variable.
* This step is done to prevent accessing the database for every configuration variable lookup.
*
* @author Max Milbers
* @param $force boolean Forces the function to load the config from the db
*/
public static function loadConfig($force = FALSE, $fresh = FALSE)
{
if ($fresh) {
self::$_jpConfig = new VmConfig();
return self::$_jpConfig;
}
vmSetStartTime('loadConfig');
if (!$force) {
if (!empty(self::$_jpConfig) && !empty(self::$_jpConfig->_params)) {
return self::$_jpConfig;
}
}
self::$_jpConfig = new VmConfig();
if (!class_exists('VirtueMartModelConfig')) {
require VMPATH_ADMIN . '/models/config.php';
}
$configTable = VirtueMartModelConfig::checkConfigTableExists();
$app = JFactory::getApplication();
$db = JFactory::getDBO();
self::$installed = true;
$install = vRequest::getInt('install', false);
$redirected = vRequest::getInt('redirected', false);
$link = '';
if (empty($configTable)) {
self::$installed = false;
$jlang = JFactory::getLanguage();
$selectedLang = $jlang->getTag();
if (empty($selectedLang)) {
$selectedLang = $jlang->setLanguage($selectedLang);
}
$q = 'SELECT `element` FROM `#__extensions` WHERE type = "language" and enabled = "1"';
$db->setQuery($q);
$knownLangs = $db->loadColumn();
//vmdebug('Selected language '.$selectedLang.' $knownLangs ',$knownLangs);
if ($app->isAdmin() and !in_array($selectedLang, $knownLangs)) {
$link = 'index.php?option=com_installer&view=languages';
$msg = 'Install your selected language <b>' . $selectedLang . '</b> first in <a href="' . $link . '">joomla language manager</a>, just select then the component VirtueMart under menu "component", to proceed with the installation ';
$app->enqueueMessage($msg);
}
self::$installed = VirtueMartModelConfig::checkVirtuemartInstalled();
if (!self::$installed) {
if (!$redirected and !$install) {
$link = 'index.php?option=com_virtuemart&view=updatesmigration&redirected=1';
$msg = '';
if ($app->isSite()) {
$link = JURI::root(true) . '/administrator/' . $link;
} else {
$msg = 'Install Virtuemart first, click on the menu component and select VirtueMart';
}
}
}
} else {
$query = ' SELECT `config` FROM `#__virtuemart_configs` WHERE `virtuemart_config_id` = "1";';
$db->setQuery($query);
self::$_jpConfig->_raw = $db->loadResult();
//vmTime('time to load config','loadConfig');
}
if (empty(self::$_jpConfig->_raw)) {
$_value = VirtueMartModelConfig::readConfigFile();
if (!$_value) {
vmError('Serious error, config file could not be filled with data');
return FALSE;
}
$_value = join('|', $_value);
self::$_jpConfig->_raw = $_value;
self::$_jpConfig->setParams(self::$_jpConfig->_raw);
self::$_jpConfig->storeConfig();
} else {
self::$_jpConfig->setParams(self::$_jpConfig->_raw);
}
self::$_secret = JFactory::getConfig()->get('secret');
self::$_jpConfig->_params['sctime'] = microtime(TRUE);
self::$_jpConfig->_params['vmlang'] = self::setdbLanguageTag();
vmTime('time to load config', 'loadConfig');
if ($app->isSite()) {
// try plugins
JPluginHelper::importPlugin('vmuserfield');
$dispatcher = JDispatcher::getInstance();
$dispatcher->trigger('plgVmInitialise', array());
}
if (!self::$installed) {
$user = JFactory::getUser();
if ($user->authorise('core.admin', 'com_virtuemart') and ($install or $redirected)) {
VmConfig::$_jpConfig->set('dangeroustools', 1);
}
if (!empty($link)) {
$app->redirect($link, $msg);
}
}
return self::$_jpConfig;
}
