/**
* Create an object or return existing one.
*
* <code>
* $currencyId = 1;
*
* $options = new JRegistry();
* $options->set("intl", true);
* $options->set("format", "2/./,");
*
* $currency = CrowdFundingCurrency::getInstance(JFactory::getDbo(), $currencyId, $options);
* </code>
*
* @param JDatabaseDriver $db
* @param int $id
* @param Joomla\Registry\Registry $options
*
* @return null|CrowdFundingCurrency
*/
public static function getInstance(JDatabaseDriver $db, $id, $options = null)
{
if (!isset(self::$instances[$id])) {
$item = new CrowdFundingCurrency($db);
$item->load($id);
if (!is_null($options) and $options instanceof JRegistry) {
$item->setOption("intl", $options->get("locale_intl", false));
$item->setOption("format", $options->get("amount_format", false));
}
self::$instances[$id] = $item;
}
return self::$instances[$id];
}
