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<?php
/**
* @version $Id: gantrypositions.class.php 2468 2012-08-17 06:16:57Z btowles $
* @author RocketTheme http://www.rockettheme.com
* @copyright Copyright (C) 2007 - 2016 RocketTheme, LLC
* @license http://www.gnu.org/licenses/gpl-2.0.html GNU/GPLv2 only
*
* Gantry uses the Joomla Framework (http://www.joomla.org), a GNU/GPLv2 content management system
*
*/
defined('GANTRY_VERSION') or die();
gantry_import('core.gantryflatfile');
if (!defined('POSITIONS_MD5')) {
/**
*
*/
define('POSITIONS_MD5', 0);
/**
*
*/
define('POSITIONS_LAYPUT', 1);
}
/**
*
*/
class GantryPositions
{
/**
* @var array
*/
private static $instances = array();
/**
* @static
*
* @param $grid
*
* @return mixed
*/
public static function getInstance($grid)
{
if (!array_key_exists($grid, self::$instances)) {
$instances[$grid] = new GantryPositions($grid);
}
return $instances[$grid];
}
/**
* @var null
*/
private $_db = null;
/**
* @var null
*/
private $_db_file = null;
/**
* @var array
*/
private $_cache = array();
/**
* @var
*/
private $_gridSystem;
/**
* @param $grid
*/
protected function __construct($grid)
{
$this->_gridSystem = $grid;
}
/**
* @return array
*/
public function __sleep()
{
return array(
'_cache', '_gridSystem'
);
}
/**
*
*/
private function _init()
{
/** @var $gantry Gantry */
global $gantry;
if (null == $this->_db) {
$this->_db = new Flatfile();
$this->_db->datadir = $gantry->gantryPath . '/' . 'admin' . '/' . 'cache' . '/';
}
$this->_db_file = $this->_gridSystem . '.cache.txt';
}
/**
* @param $md5
*
* @return null
*/
public function get($md5)
{
$this->_init();
$ret = null;
if (array_key_exists($md5, $this->_cache)) {
return $this->_cache[$md5];
}
$retarray = $this->_db->selectUnique($this->_db_file, POSITIONS_MD5, $md5);
if (null != $retarray && is_array($retarray) && count($retarray) > 0) {
$ret = $retarray[POSITIONS_LAYPUT];
}
$this->_cache[$md5] = $ret;
return $ret;
}
/**
* @param $md5
* @param $permutation
*/
public function set($md5, $permutation)
{
$this->_init();
$this->_db->insert($this->_db_file, array($md5, $permutation));
}
}