public function insert_record($table, $dataobject, $returnid=true, $bulk=false) {
        $dataobject = (array)$dataobject;

        $columns = $this->get_columns($table);
        if (empty($columns)) {
            throw new dml_exception('ddltablenotexist', $table);
        }

        $cleaned = array();

        foreach ($dataobject as $field=>$value) {
            if ($field === 'id') {
                continue;
            }
            if (!isset($columns[$field])) { // Non-existing table field, skip it
                continue;
            }
            $column = $columns[$field];
            $cleaned[$field] = $this->normalise_value($column, $value);
        }

        return $this->insert_record_raw($table, $cleaned, $returnid, $bulk);
    }