summaryrefslogtreecommitdiffstats
path: root/src/sql/doc/src/qt6-changes.qdoc
blob: 7f03b57da57f98fbf51793423a3d1d29b2c872ab (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
/****************************************************************************
**
** Copyright (C) 2020 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:FDL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Free Documentation License Usage
** Alternatively, this file may be used under the terms of the GNU Free
** Documentation License version 1.3 as published by the Free Software
** Foundation and appearing in the file included in the packaging of
** this file. Please review the following information to ensure
** the GNU Free Documentation License version 1.3 requirements
** will be met: https://www.gnu.org/licenses/fdl-1.3.html.
** $QT_END_LICENSE$
**
****************************************************************************/

/*!
    \page qtsql-changes-qt6.html
    \title Porting to Qt 6 - Qt Sql
    \ingroup porting-guides-5-to-6
    \brief Migrate Qt Sql to Qt 6.

    Qt 6 is a result of the conscious effort to make the framework more
    efficient and easy to use.

    We try to maintain binary and source compatibility for all the public
    APIs in each release. But some changes were inevitable in an effort to
    make Qt a better framework.

    In this topic we summarize those changes in Qt Sql, and provide guidance
    to handle them.

    \section1 QSqlQuery

    \section2 boundValues() Signature

    The return type for boundValues() has been changed from QMap<QString, QVariant>
    to a QVariantList. The order can be relied upon so it will be in the order of the
    binding in the prepared query. Change code like the following:

    \code
    QMap<QString, QVariant> values = boundValues();
    int id = values[":id"].value().toInt();
    \endcode

    \code
    QList<QVariant> values = boundValues().values();
    int id = values.at(0).toInt();
    \endcode

    to:

    \code
    QList<QVariant> values = boundValues().values();
    int id = values.at(0).toInt();
    \endcode
*/