Method setRevertPrice

public static function setRevertPrice($productId, $bulkId, $price, $params)
{
    $newPrice = $price;
    $db = Factory::getDBO();
    $wheres = array();
    $wheres[] = ' p.product_id = ' . (int) $productId;
    $wheres[] = ' p.bulk_id = ' . (int) $bulkId;
    $wheres[] = ' p.type = 2';
    $q = 'SELECT p.current_price';
    $q .= ' FROM #__phocacart_product_price_history AS p';
    $q .= ' WHERE ' . implode(' AND ', $wheres);
    $q .= ' ORDER BY p.id';
    $q .= ' LIMIT 1';
    $db->setQuery($q);
    $newPrice = $db->loadResult();
    if ($newPrice != $price) {
        // Set new price
        $query = 'UPDATE #__phocacart_products SET price = ' . $db->quote($newPrice) . ' WHERE id = ' . (int) $productId;
        $db->setQuery($query);
        $db->execute();
    }
    return $newPrice;
}