include/QtSql/qsqlquerymodel.h

0001 // Copyright (C) 2016 The Qt Company Ltd.
0002 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
0003
0004 #ifndef QSQLQUERYMODEL_H
0005 #define QSQLQUERYMODEL_H
0006
0007 #include <QtSql/qtsqlglobal.h>
0008 #include <QtCore/qabstractitemmodel.h>
0009 #include <QtSql/qsqldatabase.h>
0010
0011 QT_REQUIRE_CONFIG(sqlmodel);
0012
0013 QT_BEGIN_NAMESPACE
0014
0015 class QSqlQueryModelPrivate;
0016 class QSqlError;
0017 class QSqlRecord;
0018 class QSqlQuery;
0019
0020 class Q_SQL_EXPORT QSqlQueryModel: public QAbstractTableModel
0021 {
0022     Q_OBJECT
0023     Q_DECLARE_PRIVATE(QSqlQueryModel)
0024
0025 public:
0026     explicit QSqlQueryModel(QObject *parent = nullptr);
0027     virtual ~QSqlQueryModel();
0028
0029     int rowCount(const QModelIndex &parent = QModelIndex()) const override;
0030     int columnCount(const QModelIndex &parent = QModelIndex()) const override;
0031     QSqlRecord record(int row) const;
0032     QSqlRecord record() const;
0033
0034     QVariant data(const QModelIndex &item, int role = Qt::DisplayRole) const override;
0035     QVariant headerData(int section, Qt::Orientation orientation,
0036                         int role = Qt::DisplayRole) const override;
0037     bool setHeaderData(int section, Qt::Orientation orientation, const QVariant &value,
0038                        int role = Qt::EditRole) override;
0039
0040     bool insertColumns(int column, int count, const QModelIndex &parent = QModelIndex()) override;
0041     bool removeColumns(int column, int count, const QModelIndex &parent = QModelIndex()) override;
0042
0043 #if QT_DEPRECATED_SINCE(6, 2)
0044     QT_DEPRECATED_VERSION_X_6_2("QSqlQuery is not meant to be copied. Pass it by move instead.")
0045     void setQuery(const QSqlQuery &query);
0046 #endif
0047     void setQuery(QSqlQuery &&query);
0048     void setQuery(const QString &query, const QSqlDatabase &db = QSqlDatabase());
0049 #if QT_SQL_REMOVED_SINCE(6, 5)
0050     QSqlQuery query() const;
0051 #endif
0052     const QSqlQuery &query(QT6_DECL_NEW_OVERLOAD) const;
0053
0054     virtual void clear();
0055
0056     QSqlError lastError() const;
0057
0058     void fetchMore(const QModelIndex &parent = QModelIndex()) override;
0059     bool canFetchMore(const QModelIndex &parent = QModelIndex()) const override;
0060
0061     QHash<int, QByteArray> roleNames() const override;
0062
0063 protected:
0064     void beginInsertRows(const QModelIndex &parent, int first, int last);
0065     void endInsertRows();
0066
0067     void beginRemoveRows(const QModelIndex &parent, int first, int last);
0068     void endRemoveRows();
0069
0070     void beginInsertColumns(const QModelIndex &parent, int first, int last);
0071     void endInsertColumns();
0072
0073     void beginRemoveColumns(const QModelIndex &parent, int first, int last);
0074     void endRemoveColumns();
0075
0076     void beginResetModel();
0077     void endResetModel();
0078     virtual void queryChange();
0079
0080     virtual QModelIndex indexInQuery(const QModelIndex &item) const;
0081     void setLastError(const QSqlError &error);
0082     QSqlQueryModel(QSqlQueryModelPrivate &dd, QObject *parent = nullptr);
0083 };
0084
0085 QT_END_NAMESPACE
0086
0087 #endif // QSQLQUERYMODEL_H