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<?php
/**
* Piwik - Open source web analytics
*
* @link http://piwik.org
* @license http://www.gnu.org/licenses/gpl-3.0.html Gpl v3 or later
* @version $Id$
*
* @category Piwik
* @package Piwik
*/
/**
* Piwik_Option provides a very simple mechanism to save/retrieve key-values pair
* from the database (persistent key-value datastore).
*
* This is useful to save Piwik-wide preferences, configuration values.
*
* This should not be used to store user preferences nor website preferences.
*
* @package Piwik
*/
class Piwik_Option
{
private $all = array();
static private $instance = null;
/**
* @return Piwik_Option
*/
static public function getInstance()
{
if (self::$instance == null)
{
$c = __CLASS__;
self::$instance = new $c();
}
return self::$instance;
}
private function __construct() {}
/**
* Returns the option value for the requested option $name
*
* @param string $name
* @return string|false if not found
*/
public function get($name)
{
$this->autoload();
if(isset($this->all[$name]))
{
return $this->all[$name];
}
$value = Piwik_FetchOne( 'SELECT option_value
FROM `' . Piwik::prefixTable('option') . '`
WHERE option_name = ?', $name);
if($value === false)
{
return false;
}
$this->all[$name] = $value;
return $value;
}
/**
* Sets the option value in the database
*
* @param string $name
* @param string $value
* @param int $autoload if set to 1, this option value will be automatically loaded; should be set to 1 for options that will always be used in the Piwik request.
*/
public function set($name, $value, $autoload = 0)
{
$autoload = (int)$autoload;
Piwik_Query('INSERT INTO `'. Piwik::prefixTable('option') . '` (option_name, option_value, autoload) '.
' VALUES (?, ?, ?) '.
' ON DUPLICATE KEY UPDATE option_value = ?',
array($name, $value, $autoload, $value));
$this->all[$name] = $value;
}
private function autoload()
{
static $loaded = false;
if($loaded)
{
return;
}
$all = Piwik_FetchAll('SELECT option_value, option_name
FROM `'. Piwik::prefixTable('option') . '`
WHERE autoload = 1');
foreach($all as $option)
{
$this->all[$option['option_name']] = $option['option_value'];
}
$loaded = true;
}
/**
* Clears the cache
* Used in unit tests to reset the state of the object between tests
*
* @return void
*/
public function clearCache()
{
$this->all = array();
}
}
function Piwik_GetOption($name)
{
return Piwik_Option::getInstance()->get($name);
}
function Piwik_SetOption($name, $value, $autoload = 0)
{
Piwik_Option::getInstance()->set($name, $value, $autoload);
}
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