Локализация плагина скидки JoomShopping Simple discount - JoomShopping

$this->options['message'] = $this->params->get('message');

if(JFactory::getLanguage()->getTag() == 'ru-RU'){
$this->options['message'] = $this->params->get('message');;
}
elseif(JFactory::getLanguage()->getTag() == 'uk-UA') {
$this->options['message'] = $this->params->get('*****');;
}

 foreach ($this->products as $key_id => $prod)
{
    $product = JTable::getInstance('product', 'jshop');
    $product->load($prod['product_id']);
    $old_price_str = $product->product_old_price;
    $old_price = (int)$old_price_str;
    if ($old_price == 0) $sum = $sum + $prod['price'] * $prod['quantity'];
}

$jinput = JFactory::getApplication()->input;
$jinput->set('discount_addon', (int)1);

$jinput = JFactory::getApplication()->input;
if ($jinput->get('discount_addon') != 1)  $sum = $this->getPriceProducts();