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SGI Freeware 2002 November
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SGI Freeware 2002 November - Disc 3.iso
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dist
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fw_qt3.idb
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usr
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freeware
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Qt
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examples
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sql
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sqltable
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main.cpp.z
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main.cpp
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C/C++ Source or Header
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2002-04-08
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2KB
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68 lines
/****************************************************************************
**
** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
**
** This file is part of an example program for Qt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#include <qapplication.h>
#include <qsqldatabase.h>
#include <qdatatable.h>
#include <qsqlcursor.h>
#include <qmessagebox.h>
/* Modify the following to match your environment */
#define DRIVER "QPSQL7" /* see the Qt SQL documentation for a list of available drivers */
#define DATABASE "simpledb" /* the name of your database */
#define USER "trond" /* user name with appropriate rights */
#define PASSWORD "trond" /* password for USER */
#define HOST "silverfish.troll.no" /* host on which the database is running */
class SimpleCursor : public QSqlCursor
{
public:
SimpleCursor () : QSqlCursor( "simpletable" ) {}
protected:
QSqlRecord* primeInsert()
{
/* a real-world application would use sequences, or the like */
QSqlRecord* buf = QSqlCursor::primeInsert();
QSqlQuery q( "select max(id)+1 from simpletable;" );
if ( q.next() )
buf->setValue( "id", q.value(0) );
return buf;
}
};
int main( int argc, char ** argv )
{
QApplication a( argc, argv );
QSqlDatabase * db = QSqlDatabase::addDatabase( DRIVER );
db->setDatabaseName( DATABASE );
db->setUserName( USER );
db->setPassword( PASSWORD );
db->setHostName( HOST );
if( !db->open() ){
QMessageBox::information( 0, "Unable to open database",
db->lastError().databaseText() + "\nPlease read the README file in the sqltable directory for more information.");
return 1;
}
SimpleCursor cursor;
QDataTable table( &cursor ); /* data table uses our cursor */
table.addColumn( "name", "Name" );
table.addColumn( "address", "Address" );
table.setSorting( TRUE );
a.setMainWidget( &table );
table.refresh(); /* load data */
table.show(); /* show widget */
return a.exec();
}