bool addDirectors(const Movie &theMovie)
{
    QStringListIterator it(theMovie.directors_);

    while(it.hasNext())
    {
        QSqlQuery query("SELECT NAME FROM DIRECTOR WHERE NAME = :name;");
        query.bindValue(":name", it.);

        if(query.isNull())
        {
            query("INSERT INTO DIRECTOR(NAME) VALUES (:name);");
            query.bindValue(":name", *it);
        }

        query("INSERT INTO DIRECT(ID, NAME, USERNAME) VALUES (:id, :name, :username);");
        query.bindValue(":id", theMovie.id_);
        query.bindValue(":name", *it);
        query.bindValue(":username", theMovie.username_);

        query.clear();
    }
}