examples/sql/relationaltablemodel/relationaltablemodel.cpp File Reference

#include <QtGui>
#include <QtSql>
#include "../connection.h"

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Functions
void	initializeModel (QSqlRelationalTableModel *model)
QTableView *	createView (const QString &title, QSqlTableModel *model)
void	createRelationalTables ()
int	main (int argc, char *argv[])

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Function Documentation

void createRelationalTables

(

)

Definition at line 54 of file relationaltablemodel.cpp.

References QSqlQuery::exec().

Referenced by main().

{
    QSqlQuery query;
    query.exec("create table employee(id int, name varchar(20), city int, country int)");
    query.exec("insert into employee values(1, 'Espen', 5000, 47)");
    query.exec("insert into employee values(2, 'Harald', 80000, 49)");
    query.exec("insert into employee values(3, 'Sam', 100, 1)");

    query.exec("create table city(id int, name varchar(20))");
    query.exec("insert into city values(100, 'San Jose')");
    query.exec("insert into city values(5000, 'Oslo')");
    query.exec("insert into city values(80000, 'Munich')");

    query.exec("create table country(id int, name varchar(20))");
    query.exec("insert into country values(1, 'USA')");
    query.exec("insert into country values(47, 'Norway')");
    query.exec("insert into country values(49, 'Germany')");
}

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QTableView* createView	(	const QString &	title,
		QSqlTableModel *	model
	)

Definition at line 45 of file relationaltablemodel.cpp.

References QAbstractItemView::setItemDelegate(), and QTableView::setModel().

{
    QTableView *view = new QTableView;
    view->setModel(model);
    view->setItemDelegate(new QSqlRelationalDelegate(view));
    view->setWindowTitle(title);
    return view;
}

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void initializeModel

(

QSqlRelationalTableModel *

model

)

Definition at line 29 of file relationaltablemodel.cpp.

References Qt::Horizontal, QSqlTableModel::OnManualSubmit, QSqlRelationalTableModel::select(), QSqlTableModel::setEditStrategy(), QSqlQueryModel::setHeaderData(), QSqlRelationalTableModel::setRelation(), and QSqlRelationalTableModel::setTable().

{
    model->setTable("employee");

    model->setEditStrategy(QSqlTableModel::OnManualSubmit);
    model->setRelation(2, QSqlRelation("city", "id", "name"));
    model->setRelation(3, QSqlRelation("country", "id", "name"));

    model->setHeaderData(0, Qt::Horizontal, QObject::tr("ID"));
    model->setHeaderData(1, Qt::Horizontal, QObject::tr("Name"));
    model->setHeaderData(2, Qt::Horizontal, QObject::tr("City"));
    model->setHeaderData(3, Qt::Horizontal, QObject::tr("Country"));

    model->select();
}

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int main	(	int	argc,
		char *	argv[]
	)

Definition at line 73 of file relationaltablemodel.cpp.

References createConnection(), createRelationalTables(), createView(), QApplication::exec(), initializeModel(), and QWidget::show().

{
    QApplication app(argc, argv);
    if (!createConnection())
        return 1;
    createRelationalTables();

    QSqlRelationalTableModel model;

    initializeModel(&model);

    QTableView *view = createView(QObject::tr("Relational Table Model"), &model);
    view->show();

    return app.exec();
}

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