File indexing completed on 2024-05-12 05:10:17

0001 /***************************************************************************
0002     Copyright (C) 2021 Robby Stephenson <robby@periapsis.org>
0003  ***************************************************************************/
0004 
0005 /***************************************************************************
0006  *                                                                         *
0007  *   This program is free software; you can redistribute it and/or         *
0008  *   modify it under the terms of the GNU General Public License as        *
0009  *   published by the Free Software Foundation; either version 2 of        *
0010  *   the License or (at your option) version 3 or any later version        *
0011  *   accepted by the membership of KDE e.V. (or its successor approved     *
0012  *   by the membership of KDE e.V.), which shall act as a proxy            *
0013  *   defined in Section 14 of version 3 of the license.                    *
0014  *                                                                         *
0015  *   This program is distributed in the hope that it will be useful,       *
0016  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
0017  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
0018  *   GNU General Public License for more details.                          *
0019  *                                                                         *
0020  *   You should have received a copy of the GNU General Public License     *
0021  *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
0022  *                                                                         *
0023  ***************************************************************************/
0024 
0025 #ifndef MERGECONFLICTRESOLVER_H
0026 #define MERGECONFLICTRESOLVER_H
0027 
0028 #include "../datavectors.h"
0029 
0030 /**
0031  * This file contains merging functions.
0032  *
0033  * @author Robby Stephenson
0034  */
0035 namespace Tellico {
0036   namespace Merge {
0037     class ConflictResolver {
0038     public:
0039       enum Result { KeepFirst, KeepSecond, CancelMerge };
0040 
0041       ConflictResolver() {}
0042       virtual ~ConflictResolver() {}
0043       virtual Result resolve(Data::EntryPtr entry1, Data::EntryPtr entry2, Data::FieldPtr field,
0044                             const QString& value1 = QString(), const QString& value2 = QString()) = 0;
0045 
0046     private:
0047       Q_DISABLE_COPY(ConflictResolver)
0048     };
0049 
0050     bool mergeEntry(Data::EntryPtr entry1, Data::EntryPtr entry2, ConflictResolver* resolver=nullptr);
0051     // adds new fields into collection if any values in entries are not empty
0052     // first object is modified fields, second is new fields
0053     QPair<Data::FieldList, Data::FieldList> mergeFields(Data::CollPtr coll,
0054                                                         Data::FieldList fields,
0055                                                         Data::EntryList entries);
0056   }
0057 }
0058 
0059 #endif