common/include/QtSql/qsqltablemodel.h

/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtSql module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QSQLTABLEMODEL_H
#define QSQLTABLEMODEL_H

#include <QtSql/qsqldatabase.h>
#include <QtSql/qsqlquerymodel.h>

QT_BEGIN_NAMESPACE


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};

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

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

    Qt::ItemFlags flags(const QModelIndex &index) const Q_DECL_OVERRIDE;

    QSqlRecord record() const;
    QSqlRecord record(int row) const;
    QVariant data(const QModelIndex &idx, int role = Qt::DisplayRole) const Q_DECL_OVERRIDE;
    bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole) Q_DECL_OVERRIDE;

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

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

    void clear() Q_DECL_OVERRIDE;

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

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

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

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

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

    virtual void revertRow(int row);

public Q_SLOTS:
    virtual bool select();
    virtual bool selectRow(int row);

    bool submit() Q_DECL_OVERRIDE;
    void revert() Q_DECL_OVERRIDE;

    bool submitAll();
    void revertAll();

Q_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 = 0, QSqlDatabase db = QSqlDatabase());

    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 Q_DECL_OVERRIDE;
    QSqlRecord primaryValues(int row) const;
};

QT_END_NAMESPACE

#endif // QSQLTABLEMODEL_H