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82 lines
2.3 KiB
82 lines
2.3 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 TQt. 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 "main.h"
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#include <qdatatable.h>
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InvoiceItemCursor::InvoiceItemCursor() :
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TQSqlCursor( "invoiceitem" )
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{
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TQSqlFieldInfo productName( "productname", TQVariant::String );
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append( productName );
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setCalculated( productName.name(), TRUE );
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TQSqlFieldInfo productPrice( "price", TQVariant::Double );
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append( productPrice );
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setCalculated( productPrice.name(), TRUE );
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TQSqlFieldInfo productCost( "cost", TQVariant::Double );
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append( productCost );
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setCalculated( productCost.name(), TRUE );
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}
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TQVariant InvoiceItemCursor::calculateField( const TQString & name )
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{
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if ( name == "productname" ) {
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TQSqlQuery query( "SELECT name FROM prices WHERE id=" +
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field( "pricesid" )->value().toString() );
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if ( query.next() )
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return query.value( 0 );
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}
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else if ( name == "price" ) {
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TQSqlQuery query( "SELECT price FROM prices WHERE id=" +
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field( "pricesid" )->value().toString() );
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if ( query.next() )
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return query.value( 0 );
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}
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else if ( name == "cost" ) {
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TQSqlQuery query( "SELECT price FROM prices WHERE id=" +
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field( "pricesid" )->value().toString() );
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if ( query.next() )
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return TQVariant( query.value( 0 ).toDouble() *
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value( "quantity").toDouble() );
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}
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return TQVariant( TQString::null );
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}
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int main( int argc, char *argv[] )
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{
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TQApplication app( argc, argv );
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if ( createConnections() ) {
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InvoiceItemCursor invoiceItemCursor;
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TQDataTable *invoiceItemTable = new TQDataTable( &invoiceItemCursor );
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app.setMainWidget( invoiceItemTable );
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invoiceItemTable->addColumn( "productname", "Product" );
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invoiceItemTable->addColumn( "price", "Price" );
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invoiceItemTable->addColumn( "quantity", "Quantity" );
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invoiceItemTable->addColumn( "cost", "Cost" );
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invoiceItemTable->addColumn( "paiddate", "Paid" );
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invoiceItemTable->refresh();
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invoiceItemTable->show();
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return app.exec();
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}
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return 1;
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}
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