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113 lines
3.8 KiB
113 lines
3.8 KiB
15 years ago
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtSql module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial Usage
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt 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 Nokia.
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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 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt 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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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QSQLRELATIONALTABLEMODEL_H
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#define QSQLRELATIONALTABLEMODEL_H
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#include <QtSql/qsqltablemodel.h>
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QT_BEGIN_HEADER
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QT_BEGIN_NAMESPACE
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QT_MODULE(Sql)
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class Q_SQL_EXPORT QSqlRelation
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{
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public:
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QSqlRelation() {}
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QSqlRelation(const QString &aTableName, const QString &indexCol,
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const QString &displayCol)
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: tName(aTableName), iColumn(indexCol), dColumn(displayCol) {}
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inline QString tableName() const
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{ return tName; }
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inline QString indexColumn() const
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{ return iColumn; }
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inline QString displayColumn() const
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{ return dColumn; }
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inline bool isValid() const
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{ return !(tName.isEmpty() || iColumn.isEmpty() || dColumn.isEmpty()); }
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private:
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QString tName, iColumn, dColumn;
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};
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class QSqlRelationalTableModelPrivate;
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class Q_SQL_EXPORT QSqlRelationalTableModel: public QSqlTableModel
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{
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Q_OBJECT
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public:
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explicit QSqlRelationalTableModel(QObject *parent = 0,
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QSqlDatabase db = QSqlDatabase());
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virtual ~QSqlRelationalTableModel();
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QVariant data(const QModelIndex &item, int role = Qt::DisplayRole) const;
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bool setData(const QModelIndex &item, const QVariant &value, int role = Qt::EditRole);
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bool removeColumns(int column, int count, const QModelIndex &parent = QModelIndex());
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void clear();
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bool select();
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void setTable(const QString &tableName);
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virtual void setRelation(int column, const QSqlRelation &relation);
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QSqlRelation relation(int column) const;
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virtual QSqlTableModel *relationModel(int column) const;
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public Q_SLOTS:
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void revertRow(int row);
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protected:
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QString selectStatement() const;
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bool updateRowInTable(int row, const QSqlRecord &values);
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bool insertRowIntoTable(const QSqlRecord &values);
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QString orderByClause() const;
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private:
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Q_DECLARE_PRIVATE(QSqlRelationalTableModel)
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};
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QT_END_NAMESPACE
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QT_END_HEADER
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#endif // QSQLRELATIONALTABLEMODEL_H
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