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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtSql module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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 1.1, 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QSQLTABLEMODEL_P_H
#define QSQLTABLEMODEL_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of qsql*model.h . This header file may change from version to version
// without notice, or even be removed.
//
// We mean it.
//
#include "QtCore/qmap.h"
#include "private/qsqlquerymodel_p.h"
QT_BEGIN_NAMESPACE
class QSqlTableModelPrivate: public QSqlQueryModelPrivate
{
Q_DECLARE_PUBLIC(QSqlTableModel)
public:
QSqlTableModelPrivate()
: sortColumn(-1),
sortOrder(Qt::AscendingOrder),
strategy(QSqlTableModel::OnRowChange),
busyInsertingRows(false)
{}
void clear();
QSqlRecord primaryValues(int index) const;
virtual void clearCache();
QSqlRecord record(const QVector<QVariant> &values) const;
bool exec(const QString &stmt, bool prepStatement,
const QSqlRecord &rec, const QSqlRecord &whereValues);
virtual void revertCachedRow(int row);
virtual int nameToIndex(const QString &name) const;
QString strippedFieldName(const QString &name) const;
int insertCount(int maxRow = -1) const;
void initRecordAndPrimaryIndex();
QSqlDatabase db;
int sortColumn;
Qt::SortOrder sortOrder;
QSqlTableModel::EditStrategy strategy;
bool busyInsertingRows;
QSqlQuery editQuery;
QSqlIndex primaryIndex;
QString tableName;
QString filter;
enum Op { None, Insert, Update, Delete };
class ModifiedRow
{
public:
inline ModifiedRow(Op o = None, const QSqlRecord &r = QSqlRecord())
: m_op(None), m_db_values(r), m_insert(o == Insert)
{ setOp(o); }
inline Op op() const { return m_op; }
inline void setOp(Op o)
{
if (o == None)
m_submitted = true;
if (o == m_op)
return;
m_submitted = (o != Insert && o != Delete);
m_op = o;
m_rec = m_db_values;
setGenerated(m_rec, m_op == Delete);
}
inline QSqlRecord rec() const { return m_rec; }
inline QSqlRecord& recRef() { return m_rec; }
inline void setValue(int c, const QVariant &v)
{
m_submitted = false;
m_rec.setValue(c, v);
m_rec.setGenerated(c, true);
}
inline bool submitted() const { return m_submitted; }
inline void setSubmitted()
{
m_submitted = true;
setGenerated(m_rec, false);
if (m_op == Delete) {
m_rec.clearValues();
}
else {
m_op = Update;
m_db_values = m_rec;
setGenerated(m_db_values, true);
}
}
inline void refresh(bool exists, const QSqlRecord& newvals)
{
m_submitted = true;
if (exists) {
m_op = Update;
m_db_values = newvals;
m_rec = newvals;
setGenerated(m_rec, false);
} else {
m_op = Delete;
m_rec.clear();
m_db_values.clear();
}
}
inline bool insert() const { return m_insert; }
inline void revert()
{
if (m_submitted)
return;
if (m_op == Delete)
m_op = Update;
m_rec = m_db_values;
setGenerated(m_rec, false);
m_submitted = true;
}
inline QSqlRecord primaryValues(const QSqlRecord& pi) const
{
if (m_op == None || m_op == Insert)
return QSqlRecord();
QSqlRecord values(pi);
for (int i = values.count() - 1; i >= 0; --i)
values.setValue(i, m_db_values.value(values.fieldName(i)));
return values;
}
private:
inline static void setGenerated(QSqlRecord& r, bool g)
{
for (int i = r.count() - 1; i >= 0; --i)
r.setGenerated(i, g);
}
Op m_op;
QSqlRecord m_rec;
QSqlRecord m_db_values;
bool m_submitted;
bool m_insert;
};
typedef QMap<int, ModifiedRow> CacheMap;
CacheMap cache;
};
class QSqlTableModelSql: public QSqlQueryModelSql
{
public:
};
QT_END_NAMESPACE
#endif // QSQLTABLEMODEL_P_H
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