/**
* Create an object or return existing one.
*
* <code>
* $currencyId = 1;
*
* $currency = Crowdfunding\Currency::getInstance(\JFactory::getDbo(), $currencyId);
* </code>
*
* @param \JDatabaseDriver $db
* @param int $id
* @param array $options
*
* @return null|self
*/
public static function getInstance(\JDatabaseDriver $db, $id, array $options = array())
{
if (!array_key_exists($id, self::$instances)) {
$item = new Currency($db);
$item->load($id, $options);
self::$instances[$id] = $item;
}
return self::$instances[$id];
}
/**
* Create an object or return existing one.
*
* <code>
* $currencyId = 1;
*
* $currency = Crowdfunding\Currency::getInstance(\JFactory::getDbo(), $currencyId);
* </code>
*
* @param \JDatabaseDriver $db
* @param int $id
*
* @return null|self
*/
public static function getInstance(\JDatabaseDriver $db, $id)
{
if (!isset(self::$instances[$id])) {
$item = new Currency($db);
$item->load($id);
self::$instances[$id] = $item;
}
return self::$instances[$id];
}
/**
* Return currency object.
*
* <code>
* $currencyId = 1;
* $currency = $this->getCurrency($currencyId);
* </code>
*
* @param int $currencyId
*
* @throws \InvalidArgumentException
* @throws \RuntimeException
*
* @return Currency
*/
protected function getCurrency($currencyId)
{
if (!$currencyId) {
throw new \InvalidArgumentException('It is missing currency ID');
}
$currency = new Currency(\JFactory::getDbo());
$currency->load($currencyId);
return $currency;
}
/**
* Prepare and return currency object.
*
* <code>
* $this->prepareCurrency($container, $params);
* </code>
*
* @param Container $container
* @param Registry $params
*
* @throws \RuntimeException
* @throws \InvalidArgumentException
* @throws \OutOfBoundsException
*/
protected function prepareCurrency($container, $params)
{
$currencyId = $params->get('project_currency');
$currencyHash = StringHelper::generateMd5Hash(Constants::CONTAINER_CURRENCY, $currencyId);
// Get the currency from the container.
if (!$container->exists($currencyHash)) {
$currency = new Currency(\JFactory::getDbo());
$currency->load($currencyId);
$container->set($currencyHash, $currency);
}
}
