public function save_global_rule($global_rule, $company_type_id)
{
$table = 'shipping_global_function';
$where = array('company_type_id' => $company_type_id);
$data = array('global_rule' => $global_rule);
if (parent::check_exists($table, $where)) {
$this->update($table, $where, $data);
} else {
$data['company_type_id'] = $company_type_id;
$this->db->insert($table, $data);
}
}
