File indexing completed on 2024-04-28 05:48:39 

0001 /*
0002 SPDX-FileCopyrightText: 2010 Marco Mentasti <marcomentasti@gmail.com>
0003 
0004 SPDX-License-Identifier: LGPL-2.0-only
0005 */
0006 
0007 #pragma once
0008 
0009 #include <QContiguousCache>
0010 #include <QSqlQueryModel>
0011 #include <QSqlRecord>
0012 
0013 class CachedSqlQueryModel : public QSqlQueryModel
0014 {
0015     Q_OBJECT
0016 public:
0017     explicit CachedSqlQueryModel(QObject *parent = nullptr, int cacheCapacity = 1000);
0018 
0019     QVariant data(const QModelIndex &item, int role = Qt::DisplayRole) const override;
0020     QSqlRecord record(int row) const;
0021     void clear() override;
0022 
0023     int cacheCapacity() const;
0024 
0025 public Q_SLOTS:
0026     void clearCache();
0027     void setCacheCapacity(int);
0028 
0029 protected:
0030     void queryChange() override;
0031 
0032 private:
0033     void cacheRecords(int from, int to) const;
0034 
0035     mutable QContiguousCache<QSqlRecord> cache;
0036 };