<?php
    $query = $this->getQueryBuilder()
        ->insert('files_table')
        ->values(array(
            'name'   => '?',
            'format' => '?',
            )
        );

    $preparedQuery = $this->getPreparedQuery($query);
    $query->bindValue(1, $fileName);
    $query->bindValue(2, $format);

    try {
        return $query->execute();
    }