<?php
/**
 * abstract model class containing some standards
 *  get,store,delete,publish and pagination
 *
 * @package	VirtueMart
 * @subpackage Helpers
 * @author Max Milbers
 * @copyright Copyright (c) 2011 - 2014 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.
 * See /administrator/components/com_virtuemart/COPYRIGHT.php for copyright notices and details.
 *
 * http://virtuemart.net
 */

defined('_JEXEC') or die();

define('USE_SQL_CALC_FOUND_ROWS' , true);

class VmModel extends vObject{

	/**
	 * Indicates if the internal state has been set
	 *
	 * @var    boolean
	 * @since  11.1
	 */
	protected $__state_set = null;
	/**
	 * The model (base) name
	 *
	 * @var    string
	 * @note   Replaces _name variable in 11.1
	 * @since  11.1
	 */
	protected $name;

	/**
	 * The URL option for the component.
	 *
	 * @var    string
	 * @since  11.1
	 */
	protected $option = null;

	/**
	 * A state object
	 *
	 * @var    string
	 * @note   Replaces _state variable in 11.1
	 * @since  11.1
	 */
	protected $state;

	/**
	 * The event to trigger when cleaning cache.
	 *
	 * @var      string
	 * @since    11.1
	 */
	protected $event_clean_cache = null;

	var $_id 			= 0;
	var $_data			= null;
	protected $_cache = array();
	var $_query 		= null;

	var $_total			= null;
	var $_pagination 	= 0;
	var $_limit			= 0;
	var $_limitStart	= 0;
	var $_maintable 	= '';	// something like #__virtuemart_calcs
	var $_maintablename = '';
	var $_idName		= '';
	var $_cidName		= 'cid';
	var $_togglesName	= null;
	var $_selectedOrderingDir = 'DESC';
	private $_withCount = true;
	var $_noLimit = false;
	protected $_maxItems = 1000;

	public function __construct($cidName='cid', $config=array()){
		// Guess the option from the class name (Option)Model(View).
		if (empty($this->option))
		{
			$r = null;

			if (!preg_match('/(.*)Model/i', get_class($this), $r))
			{
				throw new Exception(vmText::_('JLIB_APPLICATION_ERROR_MODEL_GET_NAME'), 500);
			}

			$this->option = 'com_' . strtolower($r[1]);
		}

		// Set the view name
		if (empty($this->name))
		{
			if (array_key_exists('name', $config))
			{
				$this->name = $config['name'];
			}
			else
			{
				$this->name = $this->getName();
			}
		}

		// Set the model state
		if (array_key_exists('state', $config))
		{
			$this->state = $config['state'];
		}
		else
		{
			$this->state = new JObject;
		}

		// Set the model dbo
		if (array_key_exists('dbo', $config))
		{
			$this->_db = $config['dbo'];
		}
		else
		{
			$this->_db = JFactory::getDbo();
		}

		// Set the default view search path
		if (array_key_exists('table_path', $config))
		{
			$this->addTablePath($config['table_path']);
		}
		elseif (defined('VMPATH_ADMIN'))
		{
			$this->addTablePath(VMPATH_ADMIN . '/tables');
		}

		// Set the internal state marker - used to ignore setting state from the request
		if (!empty($config['ignore_request']))
		{
			$this->__state_set = true;
		}

		// Set the clean cache event
		if (isset($config['event_clean_cache']))
		{
			$this->event_clean_cache = $config['event_clean_cache'];
		}
		elseif (empty($this->event_clean_cache))
		{
			$this->event_clean_cache = 'onContentCleanCache';
		}

		$this->_cidName = $cidName;

		// Get the task
		$task = vRequest::getCmd('task','');
		if($task!=='add' and !empty($this->_cidName)){
			// Get the id or array of ids.
			$idArray = vRequest::getVar($this->_cidName,  0);
			if($idArray){
				if(is_array($idArray) and isset($idArray[0])){
					$this->setId((int)$idArray[0]);
				} else{
					$this->setId((int)$idArray);
				}
			}

		}
		//$this->_db = JFactory::getDbo();
		$this->setToggleName('published');
		$this->debug = FALSE;
	}

	function setDebugSql($b){
		$this->debug = (int) $b;
	}

	static private $_vmmodels = array();



	/**
	 * Method to get the model name
	 *
	 * The model name. By default parsed using the classname or it can be set
	 * by passing a $config['name'] in the class constructor
	 *
	 * @copyright   Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
	 * @license     GNU General Public License version 2 or later; see LICENSE
	 * @return  string  The name of the model
	 *
	 * @since   12.2
	 * @throws  Exception
	 */
	public function getName()
	{
		if (empty($this->name))
		{
			$r = null;
			if (!preg_match('/Model(.*)/i', get_class($this), $r))
			{
				throw new Exception(vmText::_('JLIB_APPLICATION_ERROR_MODEL_GET_NAME'), 500);
			}
			$this->name = strtolower($r[1]);
		}

		return $this->name;
	}

	/**
	 * Adds to the stack of model table paths in LIFO order.
	 * @copyright   Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
	 * @license     GNU General Public License version 2 or later; see LICENSE
	 *
	 * @param   mixed  $path  The directory as a string or directories as an array to add.
	 *
	 * @return  void
	 *
	 * @since   12.2
	 */
	public static function addTablePath($path)
	{
		VmTable::addIncludePath($path);
	}

	/**
	 * Create the filename for a resource
	 * @copyright   Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
	 * @license     GNU General Public License version 2 or later; see LICENSE
	 *
	 * @param   string  $type   The resource type to create the filename for.
	 * @param   array   $parts  An associative array of filename information.
	 *
	 * @return  string  The filename
	 *
	 * @since   11.1
	 */
	protected static function _createFileName($type, $parts = array())
	{
		$filename = '';

		switch ($type)
		{
			case 'model':
				$filename = strtolower($parts['name']) . '.php';
				break;

		}
		return $filename;
	}

	/**
	 * Method to set model state variables
	 *
	 * @copyright   Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
	 * @license     GNU General Public License version 2 or later; see LICENSE
	 *
	 * @param   string  $property  The name of the property.
	 * @param   mixed   $value     The value of the property to set or null.
	 *
	 * @return  mixed  The previous value of the property or null if not set.
	 *
	 * @since   12.2
	 */
	public function setState($property, $value = null)
	{
		return $this->state->set($property, $value);
	}

	/**
	 * Method to get model state variables
	 *
	 * @copyright   Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
	 * @license     GNU General Public License version 2 or later; see LICENSE
	 *
	 * @param   string  $property  Optional parameter name
	 * @param   mixed   $default   Optional default value
	 *
	 * @return  object  The property where specified, the state object where omitted
	 *
	 * @since   11.1
	 */
	public function getState($property = null, $default = null)
	{
		if (!$this->__state_set)
		{
			// Protected method to auto-populate the model state.
			$this->populateState();

			// Set the model state set flag to true.
			$this->__state_set = true;
		}

		return $property === null ? $this->state : $this->state->get($property, $default);
	}

	/**
	 * Method to auto-populate the model state.
	 *
	 * This method should only be called once per instantiation and is designed
	 * to be called on the first call to the getState() method unless the model
	 * configuration flag to ignore the request is set.
	 *
	 * @return  void
	 *
	 * @note    Calling getState in this method will result in recursion.
	 * @since   11.1
	 */
	protected function populateState()
	{
	}

	/**
	 * Add a directory where JModel should search for models. You may
	 * either pass a string or an array of directories.
	 *
	 * @copyright   Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
	 * @license     GNU General Public License version 2 or later; see LICENSE
	 *
	 * @param   mixed   $path    A path or array[sting] of paths to search.
	 * @param   string  $prefix  A prefix for models.
	 *
	 * @return  array  An array with directory elements. If prefix is equal to '', all directories are returned.
	 *
	 * @since   11.1
	 */
	public static function addIncludePath($path = '', $prefix = '')
	{
		static $paths;

		if (!isset($paths))
		{
			$paths = array();
		}

		if (!isset($paths[$prefix]))
		{
			$paths[$prefix] = array();
		}

		if (!isset($paths['']))
		{
			$paths[''] = array();
		}

		if (!empty($path))
		{
			//jimport('joomla.filesystem.path');

			if (!in_array($path, $paths[$prefix]))
			{
				array_unshift($paths[$prefix], vRequest::filterPath($path));
			}

			if (!in_array($path, $paths['']))
			{
				array_unshift($paths[''], vRequest::filterPath($path));
			}
		}

		return $paths[$prefix];
	}

	/**
	 * Method to get a table object, load it if necessary.
	 *
	 * @copyright   Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
	 * @license     GNU General Public License version 2 or later; see LICENSE
	 *
	 * @param   string  $name     The table name. Optional.
	 * @param   string  $prefix   The class prefix. Optional.
	 * @param   array   $options  Configuration array for model. Optional.
	 *
	 * @return  JTable  A JTable object
	 *
	 * @since   11.1
	 */
	public function getTable($name = '', $prefix = 'Table', $options = array())
	{
		if (empty($name)) {
			if(empty($this->_maintable)){
				$name = $this->getName();
			} else {
				$name = $this->_maintablename;
			}
		}

		if ($table = $this->_createTable($name, $prefix, $options))
		{
			return $table;
		}

		vmError(vmText::sprintf('JLIB_APPLICATION_ERROR_TABLE_NAME_NOT_SUPPORTED', $name),vmText::sprintf('JLIB_APPLICATION_ERROR_TABLE_NAME_NOT_SUPPORTED', $name));

		return null;
	}


	/**
	 * Method to load and return a model object.
	 *
	 * @copyright   Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
	 * @license     GNU General Public License version 2 or later; see LICENSE
	 *
	 * @param   string  $name    The name of the view
	 * @param   string  $prefix  The class prefix. Optional.
	 * @param   array   $config  Configuration settings to pass to JTable::getInstance
	 *
	 * @return  mixed  Model object or boolean false if failed
	 *
	 * @since   11.1
	 * @see     JTable::getInstance
	 */
	protected function _createTable($name, $prefix = 'Table', $config = array())
	{
		// Clean the model name
		$name = preg_replace('/[^A-Z0-9_]/i', '', $name);
		$prefix = preg_replace('/[^A-Z0-9_]/i', '', $prefix);

		// Make sure we are returning a DBO object
		if (!array_key_exists('dbo', $config))
		{
			$config['dbo'] = JFactory::getDbo();
		}

		return VmTable::getInstance($name, $prefix, $config);
	}

	/**
	 * Returns a Model object, always creating it
	 *
	 * @copyright   Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
	 * @license     GNU General Public License version 2 or later; see LICENSE
	 *
	 * @param   string  $type    The model type to instantiate
	 * @param   string  $prefix  Prefix for the model class name. Optional.
	 * @param   array   $config  Configuration array for model. Optional.
	 *
	 * @return  mixed   A model object or false on failure
	 *
	 * @since   11.1
	 */
	public static function getInstance($type, $prefix = '', $config = array())
	{
		$type = preg_replace('/[^A-Z0-9_\.-]/i', '', $type);
		$modelClass = $prefix . ucfirst($type);

		if (!class_exists($modelClass))
		{
			$path = JPath::find(self::addIncludePath(null, $prefix), self::_createFileName('model', array('name' => $type)));
			if (!$path)
			{
				$path = JPath::find(self::addIncludePath(null, ''), self::_createFileName('model', array('name' => $type)));
			}
			if ($path)
			{
				require_once $path;

				if (!class_exists($modelClass))
				{
					vmWarn(vmText::sprintf('JLIB_APPLICATION_ERROR_MODELCLASS_NOT_FOUND', $modelClass));
					return false;
				}
			}
			else
			{
				return false;
			}
		}

		return new $modelClass($config);
	}

	/**
	 * Gets an array of objects from the results of database query.
	 *
	 * @copyright   Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
	 * @copyright	Copyright (C) 2019 The VirtueMart Team
	 * @license     GNU General Public License version 2 or later; see LICENSE
	 *
	 * @param   string   $query       The query.
	 * @param   integer  $limitstart  Offset.
	 * @param   integer  $limit       The number of records.
	 *
	 * @return  array  An array of results.
	 *
	 * @since   11.1
	 */
	protected function _getList($query, $limitstart = 0, $limit = 0) {

		static $c = array();
		$h = crc32($query);
		if(isset($c[$h])){
			return $c[$h];
		} else {
			$this->_db->setQuery($query, $limitstart, $limit);
			$c[$h] = $this->_db->loadObjectList();
			return $c[$h];
		}

	}

	/**
	 * Returns a record count for the query
	 *
	 * @copyright   Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
	 * @license     GNU General Public License version 2 or later; see LICENSE
	 *
	 * @param   string  $query  The query.
	 *
	 * @return  integer  Number of rows for query
	 *
	 * @since   11.1
	 */
	protected function _getListCount($query)
	{
		$this->_db->setQuery($query);
		$this->_db->execute();

		return $this->_db->getNumRows();
	}

	/**
	 *
	 * @author Patrick Kohl
	 * @author Max Milbers
	 */
	static function getModel($name=false){

		if (!$name){
			$name = vRequest::getCmd('view','');
// 			vmdebug('Get standard model of the view');
		}
		$name = strtolower($name);
		$className = 'VirtueMartModel'.ucfirst($name);


		if(empty(self::$_vmmodels[strtolower($className)])){
			if( !class_exists($className) ){

				$modelPath = VMPATH_ADMIN .'/models/'.$name.'.php';

				if( file_exists($modelPath) ){
					require( $modelPath );
				}
				else{
					vmWarn( 'Model '. $name .' not found.' );
					echo 'File for Model '. $name .' not found.';
					return false;
				}
			}

			self::$_vmmodels[strtolower($className)] = new $className();
			return self::$_vmmodels[strtolower($className)];
		} else {
			return self::$_vmmodels[strtolower($className)];
		}

	}

	public function setIdName($idName){
		$this->_idName = $idName;
	}

	public function getIdName(){
		return $this->_idName;
	}

	public function getId(){
		return $this->_id;
	}

	/**
	 * Resets the id and data
	 *
	 * @author Max Milbers
	 *
	 */
	function setId($id){

		if(is_array($id) && count($id)!=0){
			reset($id);
			$id = current($id);
		}
		if($this->_id!=$id){
			$this->_id = (int)$id;
			$this->_data = null;
		}
		return $this->_id;
	}


	public function setMainTable($maintablename,$maintable=0){

		$this->_maintablename = $maintablename;
		if(empty($maintable)){
			$this->_maintable = '#__virtuemart_'.$maintablename;
		} else {
			$this->_maintable = $maintable;
		}
		$defaultTable = $this->getTable($this->_maintablename);
		$this->_idName = $defaultTable->getKeyName();

		$this->setDefaultValidOrderingFields($defaultTable);
		$this->_selectedOrdering = $this->_validOrderingFieldName[0];

	}

	function getDefaultOrdering(){
		return $this->_selectedOrdering;
	}


	function addvalidOrderingFieldName($add){
		$this->_validOrderingFieldName = array_merge($this->_validOrderingFieldName,$add);
	}

	function removevalidOrderingFieldName($name){
		$key=array_search($name, $this->_validOrderingFieldName);
		if($key!==false){
			unset($this->_validOrderingFieldName[$key]) ;
		}
	}

	var $_tablePreFix = '';
	/**
	 *
	 * This function sets the valid ordering fields for this model with the default table attributes
	 * @author Max Milbers
	 * @param unknown_type $defaultTable
	 */
	function setDefaultValidOrderingFields($defaultTable=null){

		if($defaultTable===null){
			$defaultTable = $this->getTable($this->_maintablename);
		}

		$this->_tablePreFix = $defaultTable->_tablePreFix;
		$dTableArray = get_object_vars($defaultTable);

		// Iterate over the object variables to build the query fields and values.
		foreach ($dTableArray as $k => $v){
			// Ignore any internal fields.
			if (strpos ($k, '_') !== 0 and property_exists($defaultTable, $k)) {
				$this->_validOrderingFieldName[] = $k;
			}
		}
	}


	function _getOrdering($preTable='') {
		if(empty($this->_selectedOrdering)) vmTrace('empty _getOrdering');
		if(empty($this->_selectedOrderingDir)) vmTrace('empty _selectedOrderingDir');
		return ' ORDER BY '.$preTable.$this->_selectedOrdering.' '.$this->_selectedOrderingDir ;
	}


	var $_validOrderingFieldName = array();

	function checkFilterOrder($toCheck, $view = 0, $task = ''){

		if(empty($toCheck)) return $this->_selectedOrdering;

		if(!in_array($toCheck, $this->_validOrderingFieldName)){

			$found = $this->checkValidOrderingFieldName($toCheck);
			if(!$found){
				$app = JFactory::getApplication();
				if (empty($view)) $view = vRequest::getCmd('view','virtuemart');
				if (!empty($task)) $task = '.'.$task.'.';
				$filter_order = strtolower ($app->getUserStateFromRequest ('com_virtuemart.'. $view . $task.'.filter_order', 'filter_order', $this->_selectedOrdering, 'cmd'));
				if(!empty($filter_order)){
					$found = $this->checkValidOrderingFieldName($filter_order);
					if($found){
						$this->_selectedOrdering = $filter_order;
					}
				}
				$app->setUserState( 'com_virtuemart.'. $view . $task.'.filter_order',$this->_selectedOrdering);
				//vmdebug('checkFilterOrder ',$toCheck,$filter_order,$this->_validOrderingFieldName,$this->_selectedOrdering);
			}
		} else {
			$this->_selectedOrdering = $toCheck;
		}

		return $this->_selectedOrdering;
	}

	function checkValidOrderingFieldName($toCheck){
		$break = false;
		foreach($this->_validOrderingFieldName as $name){
			if(!empty($name) and strpos($name,$toCheck)!==FALSE){
				$this->_selectedOrdering = $name;
				$break = true;
				break;
			}
		}
		return $break;
	}

	var $_validFilterDir = array('ASC','DESC');
	function checkFilterDir($toCheck, $view = 0, $task = ''){

		$filter_order_Dir = strtoupper($toCheck);

		if(empty($filter_order_Dir) or !in_array($filter_order_Dir, $this->_validFilterDir)){
			$filter_order_Dir = $this->_selectedOrderingDir;
			if (empty($view)) $view = vRequest::getCmd('view','virtuemart');
			if (!empty($task)) $task = '.'.$task.'.';
			$app = JFactory::getApplication();
			$app->setUserState( 'com_virtuemart.'.$view . $task.'.filter_order_Dir',$filter_order_Dir);
		}

		$this->_selectedOrderingDir = $filter_order_Dir;
		return $this->_selectedOrderingDir;
	}


	/**
	 * Loads the pagination
	 *
	 * @author Max Milbers
	 */
	public function getPagination($perRow = 5) {

		if(empty($this->_limit) ){
			$this->setPaginationLimits();
		}

		$this->_pagination = new VmPagination($this->_total , $this->_limitStart, $this->_limit , $perRow );

		return $this->_pagination;
	}

	public function setPaginationLimits($force = false){

		static $exe = true;
		if($exe or $force){
			$app = JFactory::getApplication();
			$view = vRequest::getCmd('view');
			if (empty($view)) $view = $this->_maintablename;

			$limit = (int)$app->getUserStateFromRequest('com_virtuemart.'.$view.'.limit', 'limit');
			if(empty($limit)){
				if(VmConfig::isSite()){
					$limit = VmConfig::get ('llimit_init_FE',24);
				} else {
					$limit = VmConfig::get ('llimit_init_BE',30);
				}
			}

			if(empty($limit)){
				$limit = 24;
			}
			if($limit>$this->_maxItems){
				$limit = $this->_maxItems;
			}

			$this->setState('limit', $limit);
			$this->setState('com_virtuemart.'.$view.'.limit',$limit);
			$this->_limit = $limit;

			$limitStart = $app->getUserStateFromRequest('com_virtuemart.'.$view.'.limitstart', 'limitstart',  vRequest::getInt('limitstart',0,'GET'), 'int');

			//There is a strange error in the frontend giving back 9 instead of 10, or 24 instead of 25
			//This functions assures that the steps of limitstart fit with the limit
			$limitStart = ceil((float)$limitStart/(float)$limit) * $limit;
			$this->setState('limitstart', $limitStart);
			$this->setState('com_virtuemart.'.$view.'.limitstart',$limitStart);
			$this->_limitStart = $limitStart;
			$exe = false;
		}


		return array($this->_limitStart,$this->_limit);
	}

	/**
	 * Gets the total number of entries
	 *TODO filters and search ar not set
	 * @author Max Milbers
	 * @return int Total number of entries in the database
	 */
	public function getTotal() {

		if (empty($this->_total)) {
			$db = JFactory::getDbo();
			$query = 'SELECT `'.$this->_db->escape($this->_idName).'` FROM `'.$this->_db->escape($this->_maintable).'`';;
			$db->setQuery( $query );
			if(!$db->execute()){
				if(empty($this->_maintable)) vmError('Model '.get_class( $this ).' has no maintable set');
				$this->_total = 0;
			} else {
				$this->_total = $db->getNumRows();
			}
		}

		return $this->_total;
	}


	public function setGetCount($withCount){

		$this->_withCount = $withCount;
	}

	/**
	 *
	 * exeSortSearchListQuery
	 *
	 * @author Max Milbers
	 * @author Patrick Kohl
	 * @param boolean $object use single result array = 2, assoc. array = 1 or object list = 0 as return value
	 * @param string $select the fields to select
	 * @param string $joinedTables the string of the joined tables or the table
	 * @param string $whereString for the where condition
	 * @param string $groupBy
	 * @param string $orderBy
	 * @param string $filter_order_Dir
	 */

	public function exeSortSearchListQuery($object, $select, $joinedTables, $whereString = '', $groupBy = '', $orderBy = '', $filter_order_Dir = '', $nbrReturnProducts = false ){

		$db = JFactory::getDbo();
		//and the where conditions
		if(empty($filter_order_Dir)){
			$joinedTables .="\n".$whereString."\n".$groupBy."\n".$orderBy ;
		} else {
			$joinedTables .="\n".$whereString."\n".$groupBy."\n".$orderBy.' '.$filter_order_Dir ;
		}

		if($nbrReturnProducts){
			$limitStart = $this->_limitStart;
			$limit = $nbrReturnProducts;
			$this->_withCount = false;
		} else if($this->_noLimit){
			$this->_withCount = false;
			$limitStart = 0;
			$limit = 0;
		} else {
			if(empty($this->_limit)) $this->setPaginationLimits();
			$limitStart = $this->_limitStart;
			$limit = $this->_limit;
		}

		if($this->_withCount){
			$q = 'SELECT SQL_CALC_FOUND_ROWS '.$select.' '.$joinedTables;
		} else {
			$q = 'SELECT '.$select.' '.$joinedTables;
		}

		if($this->_noLimit or empty($limit)){
			$db->setQuery($q);
		} else {
			$db->setQuery($q,$limitStart,$limit);
		}
		if($this->debug === 1) vmdebug('exeSortSearchListQuery my $limitStart '.$limitStart.'  $limit '.$limit.' q ',str_replace('#__',$db->getPrefix(),$db->getQuery()) );

		if($object == 2){
			 $this->ids = $db->loadColumn();
		} else if($object == 1 ){
			 $this->ids = $db->loadAssocList();
		} else {
			 $this->ids = $db->loadObjectList();
		}
		if($err=$db->getErrorMsg()){
			vmError('exeSortSearchListQuery '.$err);
		}
		if($this->debug === 1) vmdebug('exeSortSearchListQuery result ',$this->ids );
		if( $this->_withCount ){

			$db->setQuery('SELECT FOUND_ROWS()');
			$count = $db->loadResult();

			if($count == false){
				$count = 0;
			}
			$this->_total = $count;

		} else {
			$this->_withCount = true;
		}

		if(empty($this->ids)){
			$errors = $db->getErrorMsg();
			if( !empty( $errors)){
				vmdebug('exeSortSearchListQuery error in class '.get_class($this).' sql:',$db->getErrorMsg());
			}
			if($object == 2 or $object == 1){
				$this->ids = array();
			}
		}

		return $this->ids;

	}

	static public function joinLangTables($tablename, $prefix, $on, $method = 0){

		$useFb = vmLanguage::getUseLangFallback();
		$useFb2 = vmLanguage::getUseLangFallbackSecondary();

		if($method===0){
			$method = 'LEFT JOIN';
			if(VmConfig::isSite() and VmConfig::get('prodOnlyWLang',false)){
				$method = 'INNER JOIN';
			}
		} else {
			if($useFb2){
				$prefix = 'ljd';
			} else if($useFb){
				$prefix = 'ld';
			} else {
				$prefix = 'l';
			}
		}

		if($useFb2){
			$q = ' '.$method.' `'.$tablename.'_' .VmConfig::$jDefLang . '` as ljd ';
			if($prefix != 'ljd'){
				$q .= 'ON ljd.`'.$on.'` = '.$prefix.'.`'.$on.'`';
			}
			$joinedTables[] = $q;
			$method = 'LEFT JOIN';
		}

		if($useFb){
			$q = ' '.$method.' `'.$tablename.'_' .VmConfig::$defaultLang . '` as ld ';
			if($prefix != 'ld'){
				$q .= 'ON ld.`'.$on.'` = '.$prefix.'.`'.$on.'`';
			}
			$joinedTables[] = $q;
			$method = 'LEFT JOIN';
		}

		$q = ' '.$method.' `'.$tablename.'_' . VmConfig::$vmlang . '` as l ';
		if($prefix != 'l'){
			$q .= 'ON l.`'.$on.'` = '.$prefix.'.`'.$on.'`';
		}
		$joinedTables[] = $q;

		return $joinedTables;
	}

	static public function joinLangSelectFields($langFields, $as = true){

		$useFb = vmLanguage::getUseLangFallback();
		$useFb2 = vmLanguage::getUseLangFallbackSecondary();


		$langFields = array_unique($langFields);
		$fields = array();
		if(count($langFields)>0){
			foreach($langFields as $langField){
				if($useFb){
					$f2 = 'ld.'.$langField;
					if($useFb2){
						$f2 = 'IFNULL(ld.'.$langField.', ljd.'.$langField.')';
					}
					$q = 'IFNULL(l.'.$langField.','.$f2.')';
					if($as) $q .= ' as '.$langField;
					$fields[] = $q;
				} else {
					$fields[] = 'l.'.$langField;
				}
			}
		}
		return $fields;
	}

	static public function joinLangLikeFields($langFields, $keyword){
		$r = array();
		foreach ($langFields as $langField) {
			$t = self::joinLangLikeField($langField, $keyword);
			$r = array_merge($r, $t);
		}
		return $r;
	}

	static public function joinLangLikeField($searchField, $keyword){

		$useFb = vmLanguage::getUseLangFallback();
		$useFb2 = vmLanguage::getUseLangFallbackSecondary();


		if (strpos ($searchField, '`') !== FALSE){
			$searchField = str_replace('`','',$searchField);
		}

		$keywords_plural = preg_replace('/\s+/', '%" AND `'.$searchField.'` LIKE "%', $keyword);
		//vmdebug('joinLangLikeField',$keyword,$keywords_plural);
		$filter_search[] =  'l.`'.$searchField . '` LIKE ' . $keywords_plural;
		if($useFb){
			$filter_search[] =  'ld.`'.$searchField . '` LIKE ' . $keywords_plural;
			if($useFb2){
				$filter_search[] =  'ljd.`'.$searchField . '` LIKE ' . $keywords_plural;
			}
		}

		return $filter_search;
	}

	public function emptyCache(){
		$this->_cache = array();
	}

	/**
	 *
	 * @author Max Milbers
	 *
	 */

	public function getData($id = 0){

		if($id!=0) $this->_id = (int)$id;

		if (empty($this->_cache[$this->_id])) {
			$this->_cache[$this->_id] = $this->getTable($this->_maintablename);
			$this->_cache[$this->_id]->load($this->_id);

			//just an idea
			/*if(isset($this->_cache[$this->_id]->virtuemart_vendor_id) && empty($this->_data->virtuemart_vendor_id)){
				$this->_cache[$this->_id]->virtuemart_vendor_id = vmAccess::isSuperVendor();
			}*/
		}

		return $this->_cache[$this->_id];
	}


	public function store(&$data){

		$table = $this->getTable($this->_maintablename);

		if($table->bindChecknStore($data)){
			$_idName = $this->_idName;
			$this->_id = $table->{$_idName};
			$this->_cache[$this->_id] = $table;
			return $this->_id;
		} else {
			return false;
		}

	}

	/**
	 * Delete all record ids selected
	 *
	 * @author Max Milbers
	 * @return boolean True is the delete was successful, false otherwise.
	 */
	public function remove($ids) {

		$table = $this->getTable($this->_maintablename);
		foreach($ids as $id) {
			if (!$table->delete((int)$id)) {
				vmError(get_class( $this ).'::remove '.$id);
				return false;
			}
		}

		return true;
	}

	public function setToggleName($togglesName){
		$this->_togglesName[] = $togglesName ;
	}

	/**
	 * toggle (0/1) a field
	 * or invert by $val for multi IDS;
	 * @author Patrick Kohl
	 * @param string $field the field to toggle
	 * @param string $postName the name of id Post  (Primary Key in table Class constructor)
	 */

	function toggle($field,$val = NULL, $cidname = 0,$tablename = 0, $view = false  ) {

		if($view and !vmAccess::manager($view.'.edit.state')){
			return false;
		}
		$ok = true;

		if (!in_array($field, $this->_togglesName)) {
			vmdebug('vmModel function toggle, field '.$field.' is not in white list');
			return false ;
		}
		if($tablename === 0) $tablename = $this->_maintablename;
		if($cidname === 0) $cidname = $this->_cidName;

		$table = $this->getTable($tablename);
		$ids = vRequest::getInt( $cidname, vRequest::getInt('cid', array() ) );

		foreach($ids as $id){
			$table->load( (int)$id );

			if (!$table->toggle($field, $val)) {
				vmError(get_class( $this ).'::toggle  '.$id);
				$ok = false;
			}
		}

		return $ok;
	}

	/**
	 * Original From Joomla Method to move a weblink
	 * @ Author Kohl Patrick
	 * @$filter the field to group by
	 * @access	public
	 * @return	boolean	True on success
	 * @since	1.5
	 */
	function move($direction, $filter=null)
	{
		$table = $this->getTable($this->_maintablename);
		if (!$table->load($this->_id)) {
			vmError('VmModel move '.$table->getDbo()->getErrorMsg());
			return false;
		}

		if (!$table->move( $direction, $filter )) {
			vmError('VmModel move '.$table->getDbo()->getErrorMsg());
			return false;
		}

		return true;
	}
	/**
	 * Original From Joomla Method to move a weblink
	 * @ Author Kohl Patrick
	 * @$filter the field to group by
	 * @access	public
	 * @return	boolean	True on success
	 * @since	1.5
	 */
	function saveorder($cid, $order, $filter = null)
	{
		$table = $this->getTable($this->_maintablename);
		$groupings = array();

		// update ordering values
		for( $i=0; $i < count($cid); $i++ )
		{
			$table->load( (int) $cid[$i] );
			// track categories
			if ($filter) $groupings[] = $table->{$filter};

			if ($table->ordering != $order[$i])
			{
				$table->ordering = $order[$i];
				if (!$table->store()) {
					vmError('VmModel saveorder '.$table->getDbo()->getErrorMsg());
					return false;
				}
			}
		}

		// execute updateOrder for each parent group
		if ($filter) {
			$groupings = array_unique( $groupings );
			foreach ($groupings as $group){
				$table->reorder(	$filter.' = '.(int) $group);
			}
		}

		return true;
	}


	/**
	 * Since an object like product, category dont need always an image, we can attach them to the object with this function
	 * The parameter takes a single product or arrays of products, look for BE/views/product/view.html.php
	 * for an exampel using it
	 *
	 * @author Max Milbers
	 * @param object $obj some object with a _medias xref table
	 */

	public function addImages($obj,$limit=0){

		$mediaModel = VmModel::getModel('Media');
		$mediaModel->attachImages($obj,$this->_maintablename,'image',$limit);

	}

	public function resetErrors(){
		$this->_errors = array();
	}

}



