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<?php
/**
*
* Data module for updates and migrations
*
* @package VirtueMart
* @subpackage updatesMigration
* @author Max Milbers, RickG
* @link https://virtuemart.net
* @copyright Copyright (c) 2004 - 2021 VirtueMart Team. All rights reserved.
* @license http://www.gnu.org/copyleft/gpl.html GNU/GPL, see LICENSE.php
* VirtueMart 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.
* @version $Id: updatesmigration.php 10462 2021-01-28 17:25:37Z Milbo $
*/
// Check to ensure this file is included in Joomla!
defined('_JEXEC') or die('Restricted access');
/**
* Model class for updates and migrations
*
* @package VirtueMart
* @subpackage updatesMigration
* @author Max Milbers
*/
class VirtueMartModelUpdatesMigration extends VmModel {
/**
* @author Max Milbers
*/
function determineStoreOwner() {
$virtuemart_user_id = VirtueMartModelVendor::getUserIdByVendorId(1);
if (isset($virtuemart_user_id) && $virtuemart_user_id > 0) {
$this->_user = JFactory::getUser($virtuemart_user_id);
}
else {
$this->_user = JFactory::getUser();
}
return $this->_user->id;
}
/**
* @author Max Milbers
*/
function setStoreOwner($userId=-1) {
if(!vmAccess::manager('core')){
vmError('You have no rights to performe this action');
return false;
}
if (empty($userId)) {
vmInfo('No uer id given, can not set vendor relation');
return false;
}
if ($userId===-1 or empty($userId)) {
$userId = $this->determineStoreOwner();
vmdebug('setStoreOwner $userId = '.$userId.' by determineStoreOwner');
}
if ( empty($userId)) return false;
$db = JFactory::getDBO();
$db->setQuery( 'SELECT `virtuemart_user_id` FROM `#__virtuemart_vmusers` WHERE `virtuemart_user_id` ="'.$userId.'" ');
$vmuid = $db->loadResult();
$multix = Vmconfig::get('multix', 'none');
$q = 'UPDATE `#__virtuemart_vmusers` SET `virtuemart_vendor_id` = "0", `user_is_vendor` = "0" ';
if($multix!='none'){
$q .= 'WHERE `virtuemart_vendor_id` = "1" ';
}
$db->setQuery($q);
if ($db->execute() == false ) {
vmWarn( 'UPDATE __vmusers failed for virtuemart_user_id '.$userId.' query '.$q);
//return false;
}
$utable = $this->getTable('vmusers');
if($vmuid){
$data = array('virtuemart_user_id' => $userId, 'virtuemart_vendor_id' => "1", 'user_is_vendor' => "1");
if($utable->bindChecknStore($data,true)){
vmInfo('setStoreOwner VmUser updated new main vendor has user id '.$userId);
}
} else {
//Can not use the table here, it would set the virtuemart_vendor_id to zero if there is no entry
$date = JFactory::getDate();
$today = $date->toSQL();
$db->setQuery('INSERT INTO `#__virtuemart_vmusers` (`virtuemart_user_id`,`virtuemart_vendor_id`,`user_is_vendor`,`created_on`)
VALUES ("'.$userId.'","1","1","'.$today.'") ');
if ($db->execute() == false ) {
vmWarn( 'INSERT __vmusers failed for virtuemart_user_id '.$userId);
return false;
}
}
return $userId;
}
/**
* Installs sample data to the current database.
*
* @author Max Milbers, RickG
* @params $userId User Id to add the userinfo and vendor sample data to
*/
function installSampleData($userId = null) {
if ($userId == null) {
$userId = $this->determineStoreOwner();
}
$fields['username'] = $this->_user->username;
$fields['virtuemart_user_id'] = $userId;
$fields['address_type'] = 'BT';
// Don't change this company name; it's used in install_sample_data.sql
$fields['company'] = "Sample Company";
$fields['title'] = 'Mr';
$fields['last_name'] = 'John';
$fields['first_name'] = 'Doe';
$fields['middle_name'] = '';
$fields['phone_1'] = '555-555-555';
$fields['address_1'] = 'PO Box 123';
$fields['city'] = 'Seattle';
$fields['zip'] = '98101';
$fields['virtuemart_state_id'] = '48';
$fields['virtuemart_country_id'] = '223';
//Dont change this, atm everything is mapped to mainvendor with id=1
$fields['user_is_vendor'] = '1';
$fields['virtuemart_vendor_id'] = '1';
$fields['vendor_name'] = 'Sample Company';
//quickndirty hack for vendor_phone
vRequest::setVar('phone_1',$fields['phone_1']);
//$fields['vendor_phone'] = '555-555-1212';
$fields['vendor_store_name'] = "VirtueMart 3 Sample store";
$fields['vendor_store_desc'] = '<p>Welcome to VirtueMart the ecommerce managment system. The sample data give you a good insight of the possibilities with VirtueMart. The product description is directly the manual to configure the demonstrated features. </p><p>You see here the store description used to describe your store. Check it out!</p> <p>We were established in 1869 in a time when getting good clothes was expensive, but the quality was good. Now that only a select few of those authentic clothes survive, we have dedicated this store to bringing the experience alive for collectors and master carrier everywhere.</p>';
$fields['virtuemart_media_id'] = 1;
$fields['vendor_currency'] = '47';
$fields['vendor_accepted_currencies'] = '52,26,47,144';
$fields['vendor_terms_of_service'] = '<h5>This is a demo store. Your orders will not proceed. You have not configured any terms of service yet. Click <a href="'.JURI::base(true).'/index.php?option=com_virtuemart&view=user&task=editshop">here</a> to change this text.</h5>';
$fields['vendor_url'] = JURI::root();
$fields['vendor_name'] = 'Sample Company';
$fields['vendor_legal_info']="VAT-ID: XYZ-DEMO<br />Reg.Nr: DEMONUMBER";
$fields['vendor_letter_css']='.vmdoc-header { }
.vmdoc-footer { }
';
$fields['vendor_letter_header_html']='<h1>{vm:vendorname}</h1><p>{vm:vendoraddress}</p>';
$fields['vendor_letter_header_image']='1';
$fields['vendor_letter_footer_html']='{vm:vendorlegalinfo}<br /> Page {vm:pagenum}/{vm:pagecount}';
$usermodel = VmModel::getModel('user');
$usermodel->setId($userId);
//Save the VM user stuff
if(!$usermodel->store($fields)){
vmError(vmText::_('COM_VIRTUEMART_NOT_ABLE_TO_SAVE_USER_DATA') );
}
if(!VmConfig::$vmlang){
vmLanguage::initialise();
}
$lang = VmConfig::$vmlang;
$filename = VMPATH_ROOT .'/administrator/components/com_virtuemart/install/install_sample_data_'.$lang.'.sql';
if (!file_exists($filename)) {
$filename = VMPATH_ROOT .'/administrator/components/com_virtuemart/install/install_sample_data.sql';
}
//copy sampel media
$src = VMPATH_ROOT .'/administrator/components/com_virtuemart/assets/images/vmsampleimages';
// if(version_compare(JVERSION,'1.6.0','ge')) {
$dst = VMPATH_ROOT .'/images/virtuemart';
$this->recurse_copy($src,$dst);
if(!$this->execSQLFile($filename)){
vmError(vmText::_('Problems execution of SQL File '.$filename));
} else {
$comdata['virtuemart_vendor_id'] = 1;
$comdata['ordering'] = 1;
$comdata['shared'] = 0;
$comdata['published'] = 1;
//update jplugin_id from shipment and payment
$db = JFactory::getDBO();
$q = 'SELECT `extension_id` FROM #__extensions WHERE element = "weight_countries" AND folder = "vmshipment"';
$db->setQuery($q);
$shipment_plg_id = $db->loadResult();
if(!empty($shipment_plg_id)){
$shipdata =& $comdata;
$shipdata['shipment_jplugin_id'] = $shipment_plg_id;
$shipdata['shipment_element'] = "weight_countries";
$shipdata['shipment_params'] = 'shipment_logos=""|countries=""|zip_start=""|zip_stop=""|weight_start=""|weight_stop=""|weight_unit="KG"|nbproducts_start=0|nbproducts_stop=0|orderamount_start=""|orderamount_stop=""|cost="0"|package_fee="2.49"|tax_id="0"|free_shipment="500"';
$shipdata['shipment_name'] = "Self pick-up";
$table = $this->getTable('shipmentmethods');
$table->bindChecknStore($shipdata);
//Create table of the plugin
$url = '/plugins/vmshipment/weight_countries';
if (!class_exists ('plgVmShipmentWeight_countries')) require(VMPATH_ROOT .'/'. $url .'/weight_countries.php');
VmPlugin::directTrigger('vmshipment', 'weight_countries', 'plgVmOnStoreInstallShipmentPluginTable', array($shipment_plg_id));
}
$q = 'SELECT `extension_id` FROM #__extensions WHERE element = "standard" AND folder = "vmpayment"';
$db->setQuery($q);
$payment_plg_id = $db->loadResult();
if(!empty($payment_plg_id)){
$pdata =& $comdata;
$pdata['payment_jplugin_id'] = $payment_plg_id;
$pdata['payment_element'] = "standard";
$pdata['payment_params'] = 'payment_logos=""|countries=""|payment_currency="0"|status_pending="U"|send_invoice_on_order_null="1"|min_amount=""|max_amount=""|cost_per_transaction="0.10"|cost_percent_total="1.5"|tax_id="0"|payment_info=""';
$pdata['payment_name'] = "Cash on delivery";
$table = $this->getTable('paymentmethods');
$table->bindChecknStore($pdata);
$url = '/plugins/vmpayment/standard';
if (!class_exists ('plgVmPaymentStandard')) require(VMPATH_ROOT .'/'. $url .'/standard.php');
VmPlugin::directTrigger('vmpayment', 'standard', 'plgVmOnStoreInstallPaymentPluginTable', array($payment_plg_id));
}
VirtueMartModelCategory::updateCategories();
vmInfo(vmText::_('COM_VIRTUEMART_SAMPLE_DATA_INSTALLED'));
}
return true;
}
/**
* copy all $src to $dst folder and remove it
*
* @author Max Milbers
* @param String $src path
* @param String $dst path
* @param String $type modules, plugins, languageBE, languageFE
*/
static public function recurse_copy($src,$dst,$delete = true ) {
$dir = '';
if(JFolder::exists($src)){
$dir = opendir($src);
JFolder::create($dst);
if(is_resource($dir)){
while(false !== ( $file = readdir($dir)) ) {
if (( $file != '.' ) && ( $file != '..' )) {
if ( is_dir($src .DS. $file) ) {
if(!JFolder::create($dst . DS . $file)){
$app = JFactory::getApplication ();
$app->enqueueMessage ('Couldnt create folder ' . $dst . DS . $file);
}
self::recurse_copy($src .DS. $file,$dst .DS. $file);
}
else {
if($delete and JFile::exists($dst .DS. $file)){
if(!JFile::delete($dst .DS. $file)){
$app = JFactory::getApplication();
$app -> enqueueMessage('Couldnt delete '.$dst .DS. $file);
}
}
if(!JFile::copy($src .DS. $file,$dst .DS. $file)){
$app = JFactory::getApplication();
$app -> enqueueMessage('Couldnt move '.$src .DS. $file.' to '.$dst .DS. $file);
}
}
}
}
closedir($dir);
//if (is_dir($src)) JFolder::delete($src);
return true;
}
}
$app = JFactory::getApplication();
$app -> enqueueMessage('Couldnt read dir '.$dir.' source '.$src);
}
function restoreSystemDefaults() {
JPluginHelper::importPlugin('vmextended');
$dispatcher = JDispatcher::getInstance();
$dispatcher->trigger('onVmSqlRemove', $this);
$filename = VMPATH_ROOT .'/administrator/components/com_virtuemart/install/uninstall_essential_data.sql';
$this->execSQLFile($filename);
$filename = VMPATH_ROOT .'/administrator/components/com_virtuemart/install/uninstall_required_data.sql';
$this->execSQLFile($filename);
$filename = VMPATH_ROOT .'/administrator/components/com_virtuemart/install/install.sql';
$this->execSQLFile($filename);
$filename = VMPATH_ROOT .'/administrator/components/com_virtuemart/install/install_essential_data.sql';
$this->execSQLFile($filename);
$filename = VMPATH_ROOT .'/administrator/components/com_virtuemart/install/install_required_data.sql';
$this->execSQLFile($filename);
$updater = new GenericTableUpdater();
$updater->createLanguageTables();
JPluginHelper::importPlugin('vmextended');
$dispatcher = JDispatcher::getInstance();
$dispatcher->trigger('onVmSqlRestore', $this);
}
function restoreSystemTablesCompletly() {
$this->removeAllVMTables();
$filename = VMPATH_ROOT .'/administrator/components/com_virtuemart/install/install.sql';
$this->execSQLFile($filename);
$filename = VMPATH_ROOT .'/administrator/components/com_virtuemart/install/install_essential_data.sql';
$this->execSQLFile($filename);
$filename = VMPATH_ROOT .'/administrator/components/com_virtuemart/install/install_required_data.sql';
$this->execSQLFile($filename);
$updater = new GenericTableUpdater();
$updater->createLanguageTables();
JPluginHelper::importPlugin('vmextended');
$dispatcher = JDispatcher::getInstance();
$dispatcher->trigger('onVmSqlRestore', $this);
}
/**
* Parse a sql file executing each sql statement found.
*
* @author Max Milbers
*/
function execSQLFile($sqlfile ) {
// Check that sql files exists before reading. Otherwise raise error for rollback
if ( !file_exists($sqlfile) ) {
vmError('execSQLFile, SQL file not found! '.$sqlfile);
return false;
}
if(!class_exists('VmConfig')){
require_once(VMPATH_ADMIN .'/helpers/config.php');
VmConfig::loadConfig(false,true);
}
if(!VmConfig::$vmlang){
$params = JComponentHelper::getParams('com_languages');
$lang = $params->get('site', 'en-GB');//use default joomla
$lang = strtolower(strtr($lang,'-','_'));
} else {
$lang = VmConfig::$vmlang;
}
// Create an array of queries from the sql file
jimport('joomla.installer.helper');
$db = JFactory::getDBO();
$queries = $db->splitSql(file_get_contents($sqlfile));
if (count($queries) == 0) {
vmError('SQL file has no queries!');
return false;
}
$ok = true;
// Process each query in the $queries array (split out of sql file).
foreach ($queries as $k=>$query) {
if(empty($query)){
vmWarn('execSQLFile Query was empty in file '.$sqlfile);
continue;
}
$query = trim($query);
$queryLines = explode("\n",$query);
//vmdebug('test',$queryLines);
foreach($queryLines as $n=>$line){
if(empty($line)){
unset($queryLines[$n]);
} else {
if(strpos($line, 'CREATE' )!==false or strpos( $line, 'INSERT')!==false){
$queryLines[$n] = str_replace('XLANG',$lang,$line);
}
}
}
$query = implode("\n",$queryLines);
if(!empty($query)){
$db->setQuery($query);
if (!$db->execute()) {
vmWarn( 'JInstaller::install: '.$sqlfile.' '.vmText::_('COM_VIRTUEMART_SQL_ERROR')." ".$db->stderr(true));
$ok = false;
}
}
}
return $ok;
}
/**
* Delete all Virtuemart tables.
*
* @return True if successful, false otherwise
*/
function removeAllVMTables() {
$db = JFactory::getDBO();
$config = JFactory::getConfig();
$prefix = $config->get('dbprefix').'virtuemart_%';
$db->setQuery('SHOW TABLES LIKE "'.$prefix.'"');
if (!$tables = $db->loadColumn()) {
vmInfo ('removeAllVMTables no tables found '.$db->getErrorMsg());
return false;
}
$app = JFactory::getApplication();
foreach ($tables as $table) {
$db->setQuery('DROP TABLE ' . $table);
if($db->execute()){
$droppedTables[] = substr($table,strlen($prefix)-1);
} else {
$errorTables[] = $table;
$app->enqueueMessage('Error drop virtuemart table ' . $table);
}
}
if(!empty($droppedTables)){
$app->enqueueMessage('Dropped virtuemart table ' . implode(', ',$droppedTables));
}
if(!empty($errorTables)){
$app->enqueueMessage('Error dropping virtuemart table ' . implode($errorTables,', '));
return false;
}
//Delete VM menues
$q = 'DELETE FROM #__menu WHERE `link` = "%option=com_virtuemart%" ';
$db->setQuery($q);
$db->execute();
return true;
}
/**
* Remove all the data from all Virutmeart tables.
*
* @return boolean True if successful, false otherwise.
*/
function removeAllVMData() {
JPluginHelper::importPlugin('vmextended');
$dispatcher = JDispatcher::getInstance();
$dispatcher->trigger('onVmSqlRemove', $this);
$filename = VMPATH_ROOT .'/administrator/components/com_virtuemart/install/uninstall_data.sql';
$this->execSQLFile($filename);
$tables = array('categories','manufacturers','manufacturercategories','paymentmethods','products','shipmentmethods','vendors');
$db = JFactory::getDBO();
$prefix = $db->getPrefix();
foreach ($tables as $table) {
$query = 'SHOW TABLES LIKE "'.$prefix.'virtuemart_'.$table.'_%"';
$db->setQuery($query);
if($translatedTables= $db->loadColumn()) {
foreach ($translatedTables as $translatedTable) {
$db->setQuery('TRUNCATE TABLE `'.$translatedTable.'`');
if($db->execute()) vmInfo( $translatedTable.' empty');
else vmError($translatedTable.' language table Cannot be deleted');
}
} else vmInfo('No '.$table.' language table found to delete '.$query);
}
//"TRUNCATE TABLE IS FASTER and reset the primary Keys;
//install required data again
$filename = VMPATH_ROOT .'/administrator/components/com_virtuemart/install/install_required_data.sql';
$this->execSQLFile($filename);
return true;
}
/**
* @param $type= 'plugin'
* @param $element= 'textinput'
* @param $src = path . DS . 'plugins' . DS . $group . DS . $element;
*
*/
public function updateJoomlaUpdateServer( $type, $element, $dst, $group='' ){
$db = JFactory::getDBO();
$extensionXmlFileName = self::getExtensionXmlFileName($type, $element, $dst );
if(JFile::exists($extensionXmlFileName)){
$xml=simplexml_load_file($extensionXmlFileName);
} else {
vmdebug('updateJoomlaUpdateServer xml file not found ',$type, $element, $dst, $group);
return false;
}
// get extension id
$query="SELECT `extension_id` FROM `#__extensions` WHERE `type`=".$db->quote($type)." AND `element`=".$db->quote($element);
if ($group) {
$query.=" AND `folder`=".$db->quote($group);
}
$db->setQuery($query);
$extension_id=$db->loadResult();
if(!$extension_id) {
vmdebug('updateJoomlaUpdateServer no extension id ',$query);
return;
}
// Is the extension already in the update table ?
$query="SELECT * FROM `#__update_sites_extensions` WHERE `extension_id`=".$extension_id;
$db->setQuery($query);
$update_sites_extensions=$db->loadObject();
//VmConfig::$echoDebug=true;
// Update the version number for all
if(isset($xml->version)) {
$query="UPDATE `#__updates` SET `version`=".$db->quote((string)$xml->version)."
WHERE `extension_id`=".$extension_id;
$db->setQuery($query);
$db->execute();
}
if(isset($xml->updateservers->server)) {
if (!$update_sites_extensions) {
$query="INSERT INTO `#__update_sites` SET `name`=".$db->quote((string)$xml->updateservers->server['name']).",
`type`=".$db->quote((string)$xml->updateservers->server['type']).",
`location`=".$db->quote((string)$xml->updateservers->server).", enabled=1 ";
$db->setQuery($query);
$db->execute();
$update_site_id=$db->insertId();
$query="INSERT INTO `#__update_sites_extensions` SET `update_site_id`=".$update_site_id." , `extension_id`=".$extension_id;
$db->setQuery($query);
$db->execute();
} else {
if(empty($update_sites_extensions->update_site_id)){
vmWarn('Update site id not found for '.$element);
vmdebug('Update site id not found for '.$element,$update_sites_extensions);
return false;
}
$query="SELECT * FROM `#__update_sites` WHERE `update_site_id`=".$update_sites_extensions->update_site_id;
$db->setQuery($query);
$update_sites= $db->loadAssocList();
//vmdebug('updateJoomlaUpdateServer',$update_sites);
if(empty($update_sites)){
vmdebug('No update sites found, they should be inserted');
return false;
}
//Todo this is written with an array, but actually it is only tested to run with one server
foreach($update_sites as $upSite){
if (strcmp($upSite['location'], (string)$xml->updateservers->server) != 0) {
// the extension was already there: we just update the server if different
$query="UPDATE `#__update_sites` SET `location`=".trim($db->quote((string)$xml->updateservers->server))."
WHERE update_site_id=".(int)$update_sites_extensions->update_site_id;
$db->setQuery($query);
$db->query();
}
}
}
} else {
echo ('<br />UPDATE SERVER NOT FOUND IN XML FILE:'.$extensionXmlFileName);
}
}
/**
* @param $type= 'plugin'
* @param $element= 'textinput'
* @param $src = path . DS . 'plugins' . DS . $group . DS . $element;
*/
static function getExtensionXmlFileName($type, $element, $dst ){
if ($type=='plugin') {
$extensionXmlFileName= $dst .'/'. $element. '.xml';
} else if ($type=='module'){
$extensionXmlFileName = $dst .'/'. $element .'/'. $element. '.xml';
} else {
$extensionXmlFileName = $dst;//;. DS . $element.DS . $element. '.xml';
}
return $extensionXmlFileName;
}
public function setSafePathCreateFolders($token = ''){
if(empty($token)){
$safePath = shopFunctions::getSuggestedSafePath();
} else {
$safePath = VMPATH_ADMIN.'/'.$token.'/';
}
$safePath = str_replace('/',DS,$safePath);
$invoice = $safePath.ShopFunctionsF::getInvoiceFolderName();
//$invoice = shopFunctions::getInvoicePath($safePath);
$encryptSafePath = $safePath. vmCrypt::ENCRYPT_SAFEPATH;
JFolder::create($safePath,0755);vmdebug('setSafePathCreateFolders $safePath',$safePath);
JFolder::create($invoice,0755);vmdebug('setSafePathCreateFolders $invoice',$invoice);
JFolder::create($encryptSafePath,0755);vmdebug('setSafePathCreateFolders $encryptSafePath',$encryptSafePath);
$config = VmConfig::loadConfig();
//vmdebug('setSafePathCreateFolders set forSale_path ',$safePath,$config);
$config->set('forSale_path', $safePath);
$data['virtuemart_config_id'] = 1;
$data['config'] = $config->toString();
$confTable = $this->getTable('configs');
//vmdebug('setSafePathCreateFolders set forSale_path ',$safePath,$data['config']);
$confTable->bindChecknStore($data);
VmConfig::loadConfig(true);
return true;
}
/**
* This function deletes all stored thumbs and deletes the entries for all thumbs, usually this is need for shops
* older than vm2.0.22. The new pattern is now not storing the url as long it is not overwritten.
* Of course the function deletes all overwrites, but you can now relativly easy change the thumbsize in your shop
* @author Max Milbers
*/
function resetThumbs(){
$db = JFactory::getDbo();
$q = 'UPDATE `#__virtuemart_medias` SET `file_url_thumb`=""';
$db->setQuery($q);
$db->execute();
$err = $db->getErrorMsg();
if(!empty($err)){
vmError('resetThumbs Update entries failed ',$err);
}
jimport('joomla.filesystem.folder');
$tmpimg_resize_enable = VmConfig::get('img_resize_enable',1);
VmConfig::set('img_resize_enable',0);
$this->deleteMediaThumbFolder('media_category_path');
$this->deleteMediaThumbFolder('media_product_path');
$this->deleteMediaThumbFolder('media_manufacturer_path');
$this->deleteMediaThumbFolder('media_vendor_path');
$this->deleteMediaThumbFolder('forSale_path_thumb','');
VmConfig::set('img_resize_enable',$tmpimg_resize_enable);
return true;
}
/**
* Delets a thumb folder and recreates it, contains small nasty hack for the thumbnail folder of the "file for sale"
* @author Max Milbers
* @param $type
* @param string $resized
* @return bool
*/
private function deleteMediaThumbFolder($type,$resized='resized'){
if(!empty($resized)) $resized = DS.$resized;
$typePath = VmConfig::get($type);
if(!empty($typePath)){
$path = VMPATH_ROOT.DS.str_replace('/',DS,$typePath).$resized;
$msg = JFolder::delete($path);
if(!$msg){
vmWarn('Problem deleting '.$type);
}
$msg = JFolder::create($path);
return $msg;
} else {
return 'Config path for '.$type.' empty';
}
}
public function reset_Has_x_Fields(){
$db = JFactory::getDbo();
$q = 'UPDATE #__virtuemart_calcs SET `has_categories`=NULL,`has_shoppergroups`=NULL,`has_countries`=NULL,`has_manufacturers`=NULL, `has_states`=NULL';
$db->setQuery($q);
$db->execute();
$q = 'UPDATE #__virtuemart_categories SET `has_children`=NULL,`has_medias`=NULL, `category_parent_id`=NULL, `ordering`=NULL';
$db->setQuery($q);
$db->execute();
$q = 'UPDATE #__virtuemart_products SET `has_categories`=NULL,`has_shoppergroups`=NULL,`has_medias`=NULL,`has_manufacturers`=NULL, `has_prices`=NULL';
$db->setQuery($q);
$db->execute();
VirtueMartModelCategory::updateCategories();
}
}
//pure php no tag