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<h1 class="title">sqleventmodel.cpp Example File</h1>
<span class="subtitle">calendar/src/sqleventmodel.cpp</span>
<!-- $$$calendar/src/sqleventmodel.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp"><span class="comment">/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Quick Controls module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
** of its contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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****************************************************************************/</span>
<span class="preprocessor">#include "sqleventmodel.h"</span>
<span class="preprocessor">#include <QDebug></span>
<span class="preprocessor">#include <QFileInfo></span>
<span class="preprocessor">#include <QSqlError></span>
<span class="preprocessor">#include <QSqlQuery></span>
SqlEventModel<span class="operator">::</span>SqlEventModel() :
<span class="type">QSqlQueryModel</span>()
{
createConnection();
}
<span class="type">QList</span><span class="operator"><</span><span class="type">QObject</span><span class="operator">*</span><span class="operator">></span> SqlEventModel<span class="operator">::</span>eventsForDate(<span class="keyword">const</span> <span class="type">QDate</span> <span class="operator">&</span>date)
{
<span class="keyword">const</span> <span class="type">QString</span> queryStr <span class="operator">=</span> <span class="type">QString</span><span class="operator">::</span>fromLatin1(<span class="string">"SELECT * FROM Event WHERE '%1' >= startDate AND '%1' <= endDate"</span>)<span class="operator">.</span>arg(date<span class="operator">.</span>toString(<span class="string">"yyyy-MM-dd"</span>));
<span class="type">QSqlQuery</span> query(queryStr);
<span class="keyword">if</span> (<span class="operator">!</span>query<span class="operator">.</span>exec())
qFatal(<span class="string">"Query failed"</span>);
<span class="type">QList</span><span class="operator"><</span><span class="type">QObject</span><span class="operator">*</span><span class="operator">></span> events;
<span class="keyword">while</span> (query<span class="operator">.</span>next()) {
Event <span class="operator">*</span>event <span class="operator">=</span> <span class="keyword">new</span> Event(<span class="keyword">this</span>);
event<span class="operator">-</span><span class="operator">></span>setName(query<span class="operator">.</span>value(<span class="string">"name"</span>)<span class="operator">.</span>toString());
<span class="type">QDateTime</span> startDate;
startDate<span class="operator">.</span>setDate(query<span class="operator">.</span>value(<span class="string">"startDate"</span>)<span class="operator">.</span>toDate());
startDate<span class="operator">.</span>setTime(<span class="type">QTime</span>(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span>)<span class="operator">.</span>addSecs(query<span class="operator">.</span>value(<span class="string">"startTime"</span>)<span class="operator">.</span>toInt()));
event<span class="operator">-</span><span class="operator">></span>setStartDate(startDate);
<span class="type">QDateTime</span> endDate;
endDate<span class="operator">.</span>setDate(query<span class="operator">.</span>value(<span class="string">"endDate"</span>)<span class="operator">.</span>toDate());
endDate<span class="operator">.</span>setTime(<span class="type">QTime</span>(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span>)<span class="operator">.</span>addSecs(query<span class="operator">.</span>value(<span class="string">"endTime"</span>)<span class="operator">.</span>toInt()));
event<span class="operator">-</span><span class="operator">></span>setEndDate(endDate);
events<span class="operator">.</span>append(event);
}
<span class="keyword">return</span> events;
}
<span class="comment">/*
Defines a helper function to open a connection to an
in-memory SQLITE database and to create a test table.
*/</span>
<span class="type">void</span> SqlEventModel<span class="operator">::</span>createConnection()
{
<span class="type">QSqlDatabase</span> db <span class="operator">=</span> <span class="type">QSqlDatabase</span><span class="operator">::</span>addDatabase(<span class="string">"QSQLITE"</span>);
db<span class="operator">.</span>setDatabaseName(<span class="string">":memory:"</span>);
<span class="keyword">if</span> (<span class="operator">!</span>db<span class="operator">.</span>open()) {
qFatal(<span class="string">"Cannot open database"</span>);
<span class="keyword">return</span>;
}
<span class="type">QSqlQuery</span> query;
<span class="comment">// We store the time as seconds because it's easier to query.</span>
query<span class="operator">.</span>exec(<span class="string">"create table Event (name TEXT, startDate DATE, startTime INT, endDate DATE, endTime INT)"</span>);
query<span class="operator">.</span>exec(<span class="string">"insert into Event values('Grocery shopping', '2014-01-01', 36000, '2014-01-01', 39600)"</span>);
query<span class="operator">.</span>exec(<span class="string">"insert into Event values('Ice skating', '2014-01-01', 57600, '2014-01-01', 61200)"</span>);
query<span class="operator">.</span>exec(<span class="string">"insert into Event values('Doctor''s appointment', '2014-01-15', 57600, '2014-01-15', 63000)"</span>);
query<span class="operator">.</span>exec(<span class="string">"insert into Event values('Conference', '2014-01-24', 32400, '2014-01-28', 61200)"</span>);
<span class="keyword">return</span>;
}</pre>
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<!-- @@@calendar/src/sqleventmodel.cpp -->
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