$this->db->query("INSERT INTO " . DB_PREFIX . "tax_rate SET name = '" . $this->db->escape($data['name']) . "', rate = '" . (float)$data['rate'] . "', `type` = '" . $this->db->escape($data['type']) . "', geo_zone_id = '" . (int)$data['geo_zone_id'] . "', date_added = NOW(), date_modified = NOW()");
$tax_rate_id = $this->db->getLastId();
if (isset($data['tax_rate_customer_group'])) {
foreach ($data['tax_rate_customer_group'] as $customer_group_id) {
$this->db->query("INSERT INTO " . DB_PREFIX . "tax_rate_to_customer_group SET tax_rate_id = '" . (int)$tax_rate_id . "', customer_group_id = '" . (int)$customer_group_id . "'");
}
}