diff options
Diffstat (limited to 'doc/html/sqltable-example.html')
| -rw-r--r-- | doc/html/sqltable-example.html | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/doc/html/sqltable-example.html b/doc/html/sqltable-example.html new file mode 100644 index 000000000..858319725 --- /dev/null +++ b/doc/html/sqltable-example.html @@ -0,0 +1,121 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> +<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/examples/sql/sqltable/sqltable.doc:11 --> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> +<title>SQL Table</title> +<style type="text/css"><!-- +fn { margin-left: 1cm; text-indent: -1cm; } +a:link { color: #004faf; text-decoration: none } +a:visited { color: #672967; text-decoration: none } +body { background: #ffffff; color: black; } +--></style> +</head> +<body> + +<table border="0" cellpadding="0" cellspacing="0" width="100%"> +<tr bgcolor="#E5E5E5"> +<td valign=center> + <a href="index.html"> +<font color="#004faf">Home</font></a> + | <a href="classes.html"> +<font color="#004faf">All Classes</font></a> + | <a href="mainclasses.html"> +<font color="#004faf">Main Classes</font></a> + | <a href="annotated.html"> +<font color="#004faf">Annotated</font></a> + | <a href="groups.html"> +<font color="#004faf">Grouped Classes</font></a> + | <a href="functions.html"> +<font color="#004faf">Functions</font></a> +</td> +<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>SQL Table</h1> + + +<p> +This example shows how to use a <a href="qdatatable.html">TQDataTable</a> to browse data in a SQL database. +<p> <hr> +<p> Implementation: +<p> <pre>/**************************************************************************** +** +** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved. +** +** This file is part of an example program for TQt. This example +** program may be used, distributed and modified without limitation. +** +*****************************************************************************/ + +#include <<a href="qapplication-h.html">qapplication.h</a>> +#include <<a href="qsqldatabase-h.html">qsqldatabase.h</a>> +#include <<a href="qdatatable-h.html">qdatatable.h</a>> +#include <<a href="qsqlcursor-h.html">qsqlcursor.h</a>> +#include <<a href="qmessagebox-h.html">qmessagebox.h</a>> + +/* Modify the following to match your environment */ +#define DRIVER "TQSQLITE" /* see the TQt SQL documentation for a list of available drivers */ +#define DATABASE ":memory:" /* the name of your database */ +#define USER "" /* user name with appropriate rights */ +#define PASSWORD "" /* password for USER */ +#define HOST "" /* host on which the database is running */ + +class SimpleCursor : public <a href="qsqlcursor.html">TQSqlCursor</a> +{ +public: + SimpleCursor () : <a href="qsqlcursor.html">TQSqlCursor</a>( "simpletable" ) {} +protected: + <a href="qsqlrecord.html">TQSqlRecord</a>* primeInsert() + { + /* a real-world application would use sequences, or the like */ +<a name="x2453"></a> <a href="qsqlrecord.html">TQSqlRecord</a>* buf = TQSqlCursor::<a href="qsqlcursor.html#primeInsert">primeInsert</a>(); + <a href="qsqlquery.html">TQSqlQuery</a> q( "select max(id)+1 from simpletable" ); + if ( q.<a href="qsqlquery.html#next">next</a>() ) +<a name="x2464"></a> buf-><a href="qsqlrecord.html#setValue">setValue</a>( "id", q.<a href="qsqlquery.html#value">value</a>(0) ); + return buf; + } +}; + +int main( int argc, char ** argv ) +{ + <a href="qapplication.html">TQApplication</a> a( argc, argv ); + +<a name="x2454"></a> <a href="qsqldatabase.html">TQSqlDatabase</a> * db = TQSqlDatabase::<a href="qsqldatabase.html#addDatabase">addDatabase</a>( DRIVER ); +<a name="x2457"></a> db-><a href="qsqldatabase.html#setDatabaseName">setDatabaseName</a>( DATABASE ); +<a name="x2460"></a> db-><a href="qsqldatabase.html#setUserName">setUserName</a>( USER ); +<a name="x2459"></a> db-><a href="qsqldatabase.html#setPassword">setPassword</a>( PASSWORD ); +<a name="x2458"></a> db-><a href="qsqldatabase.html#setHostName">setHostName</a>( HOST ); + +<a name="x2456"></a> if( !db-><a href="qsqldatabase.html#open">open</a>() ){ +<a name="x2455"></a> db-><a href="qsqldatabase.html#lastError">lastError</a>().showMessage( "An error occured. Please read the README file in the sqltable" + "dir for more information.\n\n" ); + return 1; + } + +<a name="x2461"></a> if (!db-><a href="qsqldatabase.html#tables">tables</a>().contains("simpletable")) { + <a href="qsqlquery.html">TQSqlQuery</a> q("create table simpletable(id int, name varchar(20), address varchar(20))", db); + } + + SimpleCursor cursor; + + <a href="qdatatable.html">TQDataTable</a> table( &cursor ); /* data table uses our cursor */ +<a name="x2451"></a> table.<a href="qdatatable.html#addColumn">addColumn</a>( "name", "Name" ); + table.<a href="qdatatable.html#addColumn">addColumn</a>( "address", "Address" ); +<a name="x2465"></a> table.<a href="qtable.html#setSorting">setSorting</a>( TRUE ); + + a.<a href="qapplication.html#setMainWidget">setMainWidget</a>( &table ); +<a name="x2452"></a> table.<a href="qdatatable.html#refresh">refresh</a>(); /* load data */ + table.<a href="qwidget.html#show">show</a>(); /* show widget */ + + return a.<a href="qapplication.html#exec">exec</a>(); +} +</pre> + +<p> <p>See also <a href="sql-examples.html">TQt SQL Examples</a>. + +<!-- eof --> +<p><address><hr><div align=center> +<table width=100% cellspacing=0 border=0><tr> +<td>Copyright © 2007 +<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a> +<td align=right><div align=right>TQt 3.3.8</div> +</table></div></address></body> +</html> |