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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtCore/qobject.h>
#include <QtDeclarative/qmlengine.h>
#include <private/qmlengine_p.h>
#include <QtScript/qscriptvalue.h>
#include <QtScript/qscriptvalueiterator.h>
#include <QtScript/qscriptcontext.h>
#include <QtScript/qscriptengine.h>
#include <QtSql/qsqldatabase.h>
#include <QtSql/qsqlquery.h>
#include <QtSql/qsqlerror.h>
#include <QtSql/qsqlrecord.h>
#include <private/qmlrefcount_p.h>
#include <private/qmlengine_p.h>
#include <QtCore/qstack.h>
#include <QtCore/qcryptographichash.h>
#include "qmlsqldatabase_p.h"
#include <QtCore/qsettings.h>
#include <QtCore/qdir.h>
#include <QtCore/qdebug.h>
#ifdef Q_OS_WIN // for %APPDATA%
#include "qt_windows.h"
#include "qlibrary.h"
#endif
Q_DECLARE_METATYPE(QSqlDatabase)
static QScriptValue qmlsqldatabase_executeSql(QScriptContext *context, QScriptEngine *engine)
{
QSqlDatabase db = qscriptvalue_cast<QSqlDatabase>(context->thisObject());
QString sql = context->argument(0).toString();
QScriptValue values = context->argument(1);
QScriptValue cb = context->argument(2);
QScriptValue cberr = context->argument(3);
QSqlQuery query(db);
bool err = false;
if (query.prepare(sql)) {
if (values.isArray()) {
for (QScriptValueIterator it(values); it.hasNext();) {
it.next();
query.addBindValue(it.value().toVariant());
}
} else {
query.bindValue(0,values.toVariant());
}
if (query.exec()) {
QScriptValue rows = engine->newArray();
int i=0;
for (; query.next(); ++i) {
QSqlRecord r = query.record();
QScriptValue row = engine->newArray(r.count());
for (int j=0; j<r.count(); ++j) {
row.setProperty(j, QScriptValue(engine,r.value(j).toString()));
}
rows.setProperty(i, row);
}
QScriptValue rs = engine->newObject();
rs.setProperty(QLatin1String("rows"), rows);
cb.call(QScriptValue(), QScriptValueList() << context->thisObject() << rs);
} else {
err = true;
}
} else {
err = true;
}
if (err) {
QScriptValue error = engine->newObject();
error.setProperty(QLatin1String("message"), query.lastError().text());
cberr.call(QScriptValue(), QScriptValueList() << context->thisObject() << error);
}
return engine->undefinedValue();
}
static QScriptValue qmlsqldatabase_transaction(QScriptContext *context, QScriptEngine *engine)
{
QSqlDatabase db = qscriptvalue_cast<QSqlDatabase>(context->thisObject());
if (context->argumentCount() < 1)
return engine->undefinedValue();
QScriptValue cb = context->argument(0);
if (!cb.isFunction())
return engine->undefinedValue();
// Call synchronously... - XXX could do asynch with threads
QScriptValue instance = engine->newObject();
instance.setProperty(QLatin1String("executeSql"), engine->newFunction(qmlsqldatabase_executeSql,4));
QScriptValue tx = engine->newVariant(instance,qVariantFromValue(db));
db.transaction();
cb.call(QScriptValue(), QScriptValueList() << tx);
if (engine->hasUncaughtException()) {
db.rollback();
QScriptValue cb = context->argument(1);
if (cb.isFunction())
cb.call();
} else {
db.commit();
QScriptValue cb = context->argument(2);
if (cb.isFunction())
cb.call();
}
return engine->undefinedValue();
}
// XXX Something like this belongs in Qt.
static QString userLocalDataPath(const QString& app)
{
QString result;
#ifdef Q_OS_WIN
#ifndef Q_OS_WINCE
QLibrary library(QLatin1String("shell32"));
#else
QLibrary library(QLatin1String("coredll"));
#endif // Q_OS_WINCE
typedef BOOL (WINAPI*GetSpecialFolderPath)(HWND, LPWSTR, int, BOOL);
GetSpecialFolderPath SHGetSpecialFolderPath = (GetSpecialFolderPath)library.resolve("SHGetSpecialFolderPathW");
if (SHGetSpecialFolderPath) {
wchar_t path[MAX_PATH];
SHGetSpecialFolderPath(0, path, CSIDL_APPDATA, FALSE);
result = QString::fromWCharArray(path);
}
#endif // Q_OS_WIN
#ifdef Q_OS_MAC
result = QLatin1String(qgetenv("HOME"));
result += "/Library/Application Support";
#else
if (result.isEmpty()) {
// Fallback: UNIX style
result = QLatin1String(qgetenv("XDG_DATA_HOME"));
if (result.isEmpty()) {
result = QLatin1String(qgetenv("HOME"));
result += QLatin1String("/.local/share");
}
}
#endif
result += QLatin1Char('/');
result += app;
return result;
}
static QScriptValue qmlsqldatabase_open(QScriptContext *context, QScriptEngine *engine)
{
QSqlDatabase database;
QString dbname = context->argument(0).toString();
QString dbversion = context->argument(1).toString();
QString dbdescription = context->argument(2).toString();
int dbestimatedsize = context->argument(3).toNumber();
QCryptographicHash md5(QCryptographicHash::Md5);
md5.addData(dbname.utf8());
md5.addData(dbversion.utf8());
QString dbid(QLatin1String(md5.result().toHex()));
if (QSqlDatabase::connectionNames().contains(dbid)) {
database = QSqlDatabase::database(dbid);
} else {
database = QSqlDatabase::addDatabase(QLatin1String("QSQLITE"), dbid);
}
if (!database.isOpen()) {
QString basename = userLocalDataPath(QLatin1String("Nokia/Qt/QML/Databases/"));
QDir().mkpath(basename);
basename += dbid;
database.setDatabaseName(basename+QLatin1String(".sqllite"));
QSettings ini(basename+QLatin1String(".ini"),QSettings::IniFormat);
ini.setValue(QLatin1String("Name"), dbname);
ini.setValue(QLatin1String("Version"), dbversion);
ini.setValue(QLatin1String("Description"), dbdescription);
ini.setValue(QLatin1String("EstimatedSize"), dbestimatedsize);
database.open();
}
QScriptValue instance = engine->newObject();
instance.setProperty(QLatin1String("transaction"), engine->newFunction(qmlsqldatabase_transaction,3));
return engine->newVariant(instance,qVariantFromValue(database));
}
void qt_add_qmlsqldatabase(QScriptEngine *engine)
{
QScriptValue openDatabase = engine->newFunction(qmlsqldatabase_open, 4);
engine->globalObject().setProperty(QLatin1String("openDatabase"), openDatabase);
}
#include "qmlsqldatabase.moc"
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