/****************************************************************************
**
** Copyright (C) 1992-2004 Trolltech AS. All rights reserved.
**
** This file is part of the sql module of the Qt Toolkit.
**
** This file may be distributed under the terms of the Q Public License
** as defined by Trolltech AS of Norway and appearing in the file
** LICENSE.QPL included in the packaging of this file.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
**   information about Qt Commercial License Agreements.
** See http://www.trolltech.com/qpl/ for QPL licensing information.
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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****************************************************************************/

#ifndef QSQLTABLEMODEL_H
#define QSQLTABLEMODEL_H

#include "qsqldatabase.h"
#include "qsqlquerymodel.h"

class QSqlTableModelPrivate;
class QSqlRecord;
class QSqlField;
class QSqlIndex;

class Q_SQL_EXPORT QSqlTableModel: public QSqlQueryModel
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QSqlTableModel)

public:
    enum EditStrategy {OnFieldChange, OnRowChange, OnManualSubmit};

    QSqlTableModel(QObject *parent = 0, QSqlDatabase db = QSqlDatabase());
    virtual ~QSqlTableModel();

    virtual bool select();

    void setTable(const QString &tableName);
    QString tableName() const;

    ItemFlags flags(const QModelIndex &index) const;

    QVariant data(const QModelIndex &idx, int role = DisplayRole) const;
    bool setData(const QModelIndex &index, const QVariant &value, int role = EditRole);

    QVariant headerData(int section, Qt::Orientation orientation, int role = DisplayRole) const;

    bool isDirty(const QModelIndex &index) const;
    void clear();

    virtual void setEditStrategy(EditStrategy strategy);
    EditStrategy editStrategy() const;

    QSqlIndex primaryKey() const;
    QSqlDatabase database() const;
    int fieldIndex(const QString &fieldName) const;

    void sort(int column, Qt::SortOrder order);
    virtual void setSort(int column, Qt::SortOrder order);

    QString filter() const;
    virtual void setFilter(const QString &filter);

    int rowCount(const QModelIndex &parent = QModelIndex()) const;

    bool removeColumns(int column, int count, const QModelIndex &parent = QModelIndex());
    bool removeRows(int row, int count, const QModelIndex &parent = QModelIndex());
    bool insertRows(int row, int count, const QModelIndex &parent = QModelIndex());

    bool insertRecord(int row, const QSqlRecord &record);
    bool setRecord(int row, const QSqlRecord &record);

    virtual void revertRow(int row);

public slots:
    bool submit();
    void revert();

    bool submitAll();
    void revertAll();

signals:
    void primeInsert(int row, QSqlRecord &record);

    void beforeInsert(QSqlRecord &record);
    void beforeUpdate(int row, QSqlRecord &record);
    void beforeDelete(int row);

protected:
    QSqlTableModel(QSqlTableModelPrivate &dd, QObject *parent, QSqlDatabase db);

    virtual bool updateRowInTable(int row, const QSqlRecord &values);
    virtual bool insertRowIntoTable(const QSqlRecord &values);
    virtual bool deleteRowFromTable(int row);
    virtual QString orderByClause() const;
    virtual QString selectStatement() const;

    void setPrimaryKey(const QSqlIndex &key);
    void setQuery(const QSqlQuery &query);
    QModelIndex indexInQuery(const QModelIndex &item) const;
};

#endif
