ORM::_add_id_column_conditions PHP Method

    public function _add_id_column_conditions(&$query)
    {
        $query[] = "WHERE";
        $keys = is_array($this->_get_id_column_name()) ? $this->_get_id_column_name() : array($this->_get_id_column_name());
        $first = true;
        foreach ($keys as $key) {
            if ($first) {
                $first = false;
            } else {
                $query[] = "AND";
            }
            $query[] = $this->_quote_identifier($key);
            $query[] = "= ?";
        }
    }