/**
* @return array of addresses to check for duplicates and reuse the address_id.
*/
public function getExistingAddresses($customer_id)
{
$db = self::$_msql = SafeMySQL::getInstance();
$sql = "SELECT *\n FROM `addresses`\n WHERE `customer_id` = ?i";
return $db->getAll($sql, $customer_id);
}
