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/*
Copyright (C) 2006-2010 Tuomas Suutari <thsuut@utu.fi>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program (see the file COPYING); if not, write to the
Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
MA 02110-1301 USA.
*/
#ifndef SQLMEMBERMAP_H
#define SQLMEMBERMAP_H
#include "DB/MemberMap.h"
#include "QueryHelper.h"
namespace SQLDB {
class SQLMemberMap: public DB::MemberMap
{
Q_OBJECT
public:
/** Map from tag name to its members (set of tag names) within
* some category. */
typedef QMap<QString, StringSet> CategoryGroups;
/** Map from category name to its member group definitions. */
typedef QMap<QString, CategoryGroups> MemberMapping;
explicit SQLMemberMap(QueryHelper& queryHelper);
DB::MemberMap& operator=(const DB::MemberMap& other);
QStringList groups(const QString& category) const;
void deleteGroup(const QString& category, const QString& name);
QStringList members(const QString& category,
const QString& memberGroup,
bool closure) const;
void setMembers(const QString& category,
const QString& memberGroup,
const QStringList& members);
bool isEmpty() const;
bool isGroup(const QString& category,
const QString& memberGroup) const;
QMap<QString, StringSet> groupMap(const QString& category) const;
QMap<QString, StringSet> inverseMap(const QString& category) const;
void renameGroup(const QString& category,
const QString& oldName, const QString& newName);
void renameCategory(const QString& oldName, const QString& newName);
void addGroup(const QString& category, const QString& group);
void addMemberToGroup(const QString& category,
const QString& group, const QString& item);
void removeMemberFromGroup(const QString& category,
const QString& group, const QString& item);
const MemberMapping& memberMap() const;
protected slots:
void deleteItem(DB::Category* category, const QString& name);
void renameItem(DB::Category* category,
const QString& oldName, const QString& newName);
protected:
QueryHelper& _qh;
private:
void overwriteWithMemberMap(const MemberMapping& map);
void updateMemberMapCache() const;
mutable MemberMapping _memberMapCache;
// deny copy
SQLMemberMap(const SQLMemberMap& other);
};
}
#endif /* SQLMEMBERMAP_H */
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