$this->db->query("UPDATE " . DB_PREFIX . "address SET firstname = '" . $this->db->escape($data['firstname']) . "', lastname = '" . $this->db->escape($data['lastname']) . "', company = '" . $this->db->escape($data['company']) . "', company_id = '" . $this->db->escape(isset($data['company_id']) ? $data['company_id'] : '') . "', tax_id = '" . $this->db->escape(isset($data['tax_id']) ? $data['tax_id'] : '') . "', address_1 = '" . $this->db->escape($data['address_1']) . "', address_2 = '" . $this->db->escape($data['address_2']) . "', postcode = '" . $this->db->escape($data['postcode']) . "', city = '" . $this->db->escape($data['city']) . "', zone_id = '" . (int)$data['zone_id'] . "', country_id = '" . (int)$data['country_id'] . "' WHERE address_id = '" . (int)$address_id . "' AND customer_id = '" . (int)$this->customer->getId() . "'");
if (!empty($data['default'])) {
$this->db->query("UPDATE " . DB_PREFIX . "customer SET address_id = '" . (int)$address_id . "' WHERE customer_id = '" . (int)$this->customer->getId() . "'");
}