SessionsModel(QObject *,const QSqlDatabase &) definition buildHallIdFilterCondition(const QString &,QString &) definition buildMovieIdFilterCondition(const QString &,QString &) definition createMultiColumnFilter(const QString &) definition headerData(int,Orientation,int) definition initialize() definition SessionsModel Orientation true true pass by value QObject true false pass by reference QSqlDatabase true false pass by reference QString true false pass by reference pass by reference pass by reference pass by reference pass by reference