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72 lines
2.2 KiB
72 lines
2.2 KiB
13 years ago
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/****************************************************************************
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**
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** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
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**
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** This file is part of an example program for Qt. This example
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** program may be used, distributed and modified without limitation.
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**
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*****************************************************************************/
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#include <qapplication.h>
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#include <qsqldatabase.h>
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#include <qdatatable.h>
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#include <qsqlcursor.h>
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#include <qmessagebox.h>
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/* Modify the following to match your environment */
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#define DRIVER "QSQLITE" /* see the Qt SQL documentation for a list of available drivers */
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#define DATABASE ":memory:" /* the name of your database */
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#define USER "" /* user name with appropriate rights */
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#define PASSWORD "" /* password for USER */
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#define HOST "" /* host on which the database is running */
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class SimpleCursor : public QSqlCursor
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{
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public:
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SimpleCursor () : QSqlCursor( "simpletable" ) {}
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protected:
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QSqlRecord* primeInsert()
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{
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/* a real-world application would use sequences, or the like */
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QSqlRecord* buf = QSqlCursor::primeInsert();
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QSqlQuery q( "select max(id)+1 from simpletable" );
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if ( q.next() )
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buf->setValue( "id", q.value(0) );
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return buf;
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}
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};
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int main( int argc, char ** argv )
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{
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QApplication a( argc, argv );
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QSqlDatabase * db = QSqlDatabase::addDatabase( DRIVER );
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db->setDatabaseName( DATABASE );
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db->setUserName( USER );
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db->setPassword( PASSWORD );
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db->setHostName( HOST );
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if( !db->open() ){
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db->lastError().showMessage( "An error occured. Please read the README file in the sqltable"
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"dir for more information.\n\n" );
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return 1;
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}
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if (!db->tables().contains("simpletable")) {
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QSqlQuery q("create table simpletable(id int, name varchar(20), address varchar(20))", db);
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}
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SimpleCursor cursor;
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QDataTable table( &cursor ); /* data table uses our cursor */
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table.addColumn( "name", "Name" );
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table.addColumn( "address", "Address" );
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table.setSorting( TRUE );
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a.setMainWidget( &table );
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table.refresh(); /* load data */
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table.show(); /* show widget */
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return a.exec();
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}
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