1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the examples of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:BSD$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** BSD License Usage
18** Alternatively, you may use this file under the terms of the BSD license
19** as follows:
20**
21** "Redistribution and use in source and binary forms, with or without
22** modification, are permitted provided that the following conditions are
23** met:
24** * Redistributions of source code must retain the above copyright
25** notice, this list of conditions and the following disclaimer.
26** * Redistributions in binary form must reproduce the above copyright
27** notice, this list of conditions and the following disclaimer in
28** the documentation and/or other materials provided with the
29** distribution.
30** * Neither the name of The Qt Company Ltd nor the names of its
31** contributors may be used to endorse or promote products derived
32** from this software without specific prior written permission.
33**
34**
35** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
36** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
37** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
38** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
39** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
42** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
43** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
44** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
45** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
46**
47** $QT_END_LICENSE$
48**
49****************************************************************************/
50
51#include <QtWidgets>
52#include <QtSql>
53
54#include "tableeditor.h"
55
56//! [0]
57TableEditor::TableEditor(const QString &tableName, QWidget *parent)
58 : QWidget(parent)
59{
60 model = new QSqlTableModel(this);
61 model->setTable(tableName);
62 model->setEditStrategy(QSqlTableModel::OnManualSubmit);
63 model->select();
64
65 model->setHeaderData(section: 0, orientation: Qt::Horizontal, value: tr(s: "ID"));
66 model->setHeaderData(section: 1, orientation: Qt::Horizontal, value: tr(s: "First name"));
67 model->setHeaderData(section: 2, orientation: Qt::Horizontal, value: tr(s: "Last name"));
68
69//! [0] //! [1]
70 QTableView *view = new QTableView;
71 view->setModel(model);
72 view->resizeColumnsToContents();
73//! [1]
74
75//! [2]
76 submitButton = new QPushButton(tr(s: "Submit"));
77 submitButton->setDefault(true);
78 revertButton = new QPushButton(tr(s: "&Revert"));
79 quitButton = new QPushButton(tr(s: "Quit"));
80
81 buttonBox = new QDialogButtonBox(Qt::Vertical);
82 buttonBox->addButton(button: submitButton, role: QDialogButtonBox::ActionRole);
83 buttonBox->addButton(button: revertButton, role: QDialogButtonBox::ActionRole);
84 buttonBox->addButton(button: quitButton, role: QDialogButtonBox::RejectRole);
85//! [2]
86
87//! [3]
88 connect(sender: submitButton, signal: &QPushButton::clicked, receiver: this, slot: &TableEditor::submit);
89 connect(sender: revertButton, signal: &QPushButton::clicked, receiver: model, slot: &QSqlTableModel::revertAll);
90 connect(sender: quitButton, signal: &QPushButton::clicked, receiver: this, slot: &TableEditor::close);
91//! [3]
92
93//! [4]
94 QHBoxLayout *mainLayout = new QHBoxLayout;
95 mainLayout->addWidget(view);
96 mainLayout->addWidget(buttonBox);
97 setLayout(mainLayout);
98
99 setWindowTitle(tr(s: "Cached Table"));
100}
101//! [4]
102
103//! [5]
104void TableEditor::submit()
105{
106 model->database().transaction();
107 if (model->submitAll()) {
108 model->database().commit();
109 } else {
110 model->database().rollback();
111 QMessageBox::warning(parent: this, title: tr(s: "Cached Table"),
112 text: tr(s: "The database reported an error: %1")
113 .arg(a: model->lastError().text()));
114 }
115}
116//! [5]
117

source code of qtbase/examples/sql/cachedtable/tableeditor.cpp