83a5694dc2
Qt copyrights are now in The Qt Company, so we could update the source code headers accordingly. In the same go we should also fix the links to point to qt.io. Outdated header.LGPL removed (use header.LGPL21 instead) Old header.LGPL3 renamed to header.LGPL3-COMM to match actual licensing combination. New header.LGPL-COMM taken in the use file which were using old header.LGPL3 (src/plugins/platforms/android/extract.cpp) Added new header.LGPL3 containing Commercial + LGPLv3 + GPLv2 license combination Change-Id: I6f49b819a8a20cc4f88b794a8f6726d975e8ffbe Reviewed-by: Matti Paaso <matti.paaso@theqtcompany.com>
299 lines
11 KiB
C++
299 lines
11 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the demonstration applications of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL21$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "browser.h"
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#include "qsqlconnectiondialog.h"
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#include <QtWidgets>
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#include <QtSql>
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Browser::Browser(QWidget *parent)
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: QWidget(parent)
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{
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setupUi(this);
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table->addAction(insertRowAction);
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table->addAction(deleteRowAction);
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table->addAction(fieldStrategyAction);
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table->addAction(rowStrategyAction);
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table->addAction(manualStrategyAction);
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table->addAction(submitAction);
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table->addAction(revertAction);
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table->addAction(selectAction);
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if (QSqlDatabase::drivers().isEmpty())
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QMessageBox::information(this, tr("No database drivers found"),
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tr("This demo requires at least one Qt database driver. "
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"Please check the documentation how to build the "
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"Qt SQL plugins."));
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emit statusMessage(tr("Ready."));
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}
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Browser::~Browser()
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{
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}
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void Browser::exec()
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{
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QSqlQueryModel *model = new QSqlQueryModel(table);
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model->setQuery(QSqlQuery(sqlEdit->toPlainText(), connectionWidget->currentDatabase()));
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table->setModel(model);
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if (model->lastError().type() != QSqlError::NoError)
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emit statusMessage(model->lastError().text());
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else if (model->query().isSelect())
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emit statusMessage(tr("Query OK."));
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else
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emit statusMessage(tr("Query OK, number of affected rows: %1").arg(
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model->query().numRowsAffected()));
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updateActions();
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}
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QSqlError Browser::addConnection(const QString &driver, const QString &dbName, const QString &host,
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const QString &user, const QString &passwd, int port)
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{
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static int cCount = 0;
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QSqlError err;
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QSqlDatabase db = QSqlDatabase::addDatabase(driver, QString("Browser%1").arg(++cCount));
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db.setDatabaseName(dbName);
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db.setHostName(host);
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db.setPort(port);
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if (!db.open(user, passwd)) {
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err = db.lastError();
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db = QSqlDatabase();
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QSqlDatabase::removeDatabase(QString("Browser%1").arg(cCount));
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}
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connectionWidget->refresh();
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return err;
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}
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void Browser::addConnection()
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{
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QSqlConnectionDialog dialog(this);
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if (dialog.exec() != QDialog::Accepted)
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return;
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if (dialog.useInMemoryDatabase()) {
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QSqlDatabase::database("in_mem_db", false).close();
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QSqlDatabase::removeDatabase("in_mem_db");
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QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE", "in_mem_db");
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db.setDatabaseName(":memory:");
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if (!db.open())
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QMessageBox::warning(this, tr("Unable to open database"), tr("An error occurred while "
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"opening the connection: ") + db.lastError().text());
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QSqlQuery q("", db);
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q.exec("drop table Movies");
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q.exec("drop table Names");
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q.exec("create table Movies (id integer primary key, Title varchar, Director varchar, Rating number)");
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q.exec("insert into Movies values (0, 'Metropolis', 'Fritz Lang', '8.4')");
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q.exec("insert into Movies values (1, 'Nosferatu, eine Symphonie des Grauens', 'F.W. Murnau', '8.1')");
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q.exec("insert into Movies values (2, 'Bis ans Ende der Welt', 'Wim Wenders', '6.5')");
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q.exec("insert into Movies values (3, 'Hardware', 'Richard Stanley', '5.2')");
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q.exec("insert into Movies values (4, 'Mitchell', 'Andrew V. McLaglen', '2.1')");
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q.exec("create table Names (id integer primary key, Firstname varchar, Lastname varchar, City varchar)");
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q.exec("insert into Names values (0, 'Sala', 'Palmer', 'Morristown')");
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q.exec("insert into Names values (1, 'Christopher', 'Walker', 'Morristown')");
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q.exec("insert into Names values (2, 'Donald', 'Duck', 'Andeby')");
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q.exec("insert into Names values (3, 'Buck', 'Rogers', 'Paris')");
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q.exec("insert into Names values (4, 'Sherlock', 'Holmes', 'London')");
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connectionWidget->refresh();
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} else {
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QSqlError err = addConnection(dialog.driverName(), dialog.databaseName(), dialog.hostName(),
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dialog.userName(), dialog.password(), dialog.port());
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if (err.type() != QSqlError::NoError)
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QMessageBox::warning(this, tr("Unable to open database"), tr("An error occurred while "
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"opening the connection: ") + err.text());
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}
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}
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void Browser::showTable(const QString &t)
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{
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QSqlTableModel *model = new CustomModel(table, connectionWidget->currentDatabase());
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model->setEditStrategy(QSqlTableModel::OnRowChange);
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model->setTable(connectionWidget->currentDatabase().driver()->escapeIdentifier(t, QSqlDriver::TableName));
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model->select();
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if (model->lastError().type() != QSqlError::NoError)
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emit statusMessage(model->lastError().text());
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table->setModel(model);
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table->setEditTriggers(QAbstractItemView::DoubleClicked|QAbstractItemView::EditKeyPressed);
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connect(table->selectionModel(), SIGNAL(currentRowChanged(QModelIndex,QModelIndex)),
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this, SLOT(currentChanged()));
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updateActions();
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}
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void Browser::showMetaData(const QString &t)
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{
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QSqlRecord rec = connectionWidget->currentDatabase().record(t);
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QStandardItemModel *model = new QStandardItemModel(table);
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model->insertRows(0, rec.count());
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model->insertColumns(0, 7);
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model->setHeaderData(0, Qt::Horizontal, "Fieldname");
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model->setHeaderData(1, Qt::Horizontal, "Type");
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model->setHeaderData(2, Qt::Horizontal, "Length");
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model->setHeaderData(3, Qt::Horizontal, "Precision");
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model->setHeaderData(4, Qt::Horizontal, "Required");
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model->setHeaderData(5, Qt::Horizontal, "AutoValue");
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model->setHeaderData(6, Qt::Horizontal, "DefaultValue");
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for (int i = 0; i < rec.count(); ++i) {
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QSqlField fld = rec.field(i);
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model->setData(model->index(i, 0), fld.name());
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model->setData(model->index(i, 1), fld.typeID() == -1
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? QString(QMetaType::typeName(fld.type()))
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: QString("%1 (%2)").arg(QMetaType::typeName(fld.type())).arg(fld.typeID()));
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model->setData(model->index(i, 2), fld.length());
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model->setData(model->index(i, 3), fld.precision());
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model->setData(model->index(i, 4), fld.requiredStatus() == -1 ? QVariant("?")
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: QVariant(bool(fld.requiredStatus())));
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model->setData(model->index(i, 5), fld.isAutoValue());
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model->setData(model->index(i, 6), fld.defaultValue());
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}
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table->setModel(model);
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table->setEditTriggers(QAbstractItemView::NoEditTriggers);
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updateActions();
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}
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void Browser::insertRow()
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{
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QSqlTableModel *model = qobject_cast<QSqlTableModel *>(table->model());
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if (!model)
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return;
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QModelIndex insertIndex = table->currentIndex();
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int row = insertIndex.row() == -1 ? 0 : insertIndex.row();
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model->insertRow(row);
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insertIndex = model->index(row, 0);
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table->setCurrentIndex(insertIndex);
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table->edit(insertIndex);
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}
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void Browser::deleteRow()
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{
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QSqlTableModel *model = qobject_cast<QSqlTableModel *>(table->model());
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if (!model)
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return;
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QModelIndexList currentSelection = table->selectionModel()->selectedIndexes();
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for (int i = 0; i < currentSelection.count(); ++i) {
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if (currentSelection.at(i).column() != 0)
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continue;
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model->removeRow(currentSelection.at(i).row());
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}
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updateActions();
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}
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void Browser::updateActions()
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{
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QSqlTableModel * tm = qobject_cast<QSqlTableModel *>(table->model());
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bool enableIns = tm;
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bool enableDel = enableIns && table->currentIndex().isValid();
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insertRowAction->setEnabled(enableIns);
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deleteRowAction->setEnabled(enableDel);
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fieldStrategyAction->setEnabled(tm);
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rowStrategyAction->setEnabled(tm);
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manualStrategyAction->setEnabled(tm);
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submitAction->setEnabled(tm);
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revertAction->setEnabled(tm);
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selectAction->setEnabled(tm);
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if (tm) {
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QSqlTableModel::EditStrategy es = tm->editStrategy();
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fieldStrategyAction->setChecked(es == QSqlTableModel::OnFieldChange);
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rowStrategyAction->setChecked(es == QSqlTableModel::OnRowChange);
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manualStrategyAction->setChecked(es == QSqlTableModel::OnManualSubmit);
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}
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}
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void Browser::about()
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{
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QMessageBox::about(this, tr("About"), tr("The SQL Browser demonstration "
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"shows how a data browser can be used to visualize the results of SQL"
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"statements on a live database"));
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}
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void Browser::on_fieldStrategyAction_triggered()
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{
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QSqlTableModel * tm = qobject_cast<QSqlTableModel *>(table->model());
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if (tm)
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tm->setEditStrategy(QSqlTableModel::OnFieldChange);
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}
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void Browser::on_rowStrategyAction_triggered()
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{
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QSqlTableModel * tm = qobject_cast<QSqlTableModel *>(table->model());
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if (tm)
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tm->setEditStrategy(QSqlTableModel::OnRowChange);
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}
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void Browser::on_manualStrategyAction_triggered()
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{
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QSqlTableModel * tm = qobject_cast<QSqlTableModel *>(table->model());
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if (tm)
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tm->setEditStrategy(QSqlTableModel::OnManualSubmit);
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}
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void Browser::on_submitAction_triggered()
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{
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QSqlTableModel * tm = qobject_cast<QSqlTableModel *>(table->model());
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if (tm)
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tm->submitAll();
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}
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void Browser::on_revertAction_triggered()
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{
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QSqlTableModel * tm = qobject_cast<QSqlTableModel *>(table->model());
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if (tm)
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tm->revertAll();
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}
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void Browser::on_selectAction_triggered()
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{
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QSqlTableModel * tm = qobject_cast<QSqlTableModel *>(table->model());
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if (tm)
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tm->select();
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}
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