2 // Copyright 2010 Mikko Keinänen
4 // This file is part of EmuFront.
7 // EmuFront is free software: you can redistribute it and/or modify
8 // it under the terms of the GNU General Public License as published by
9 // the Free Software Foundation, either version 3 of the License, or
10 // (at your option) any later version.
12 // EmuFront is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with EmuFront. If not, see <http://www.gnu.org/licenses/>.
20 #include "databasemanager.h"
22 #include <QSqlDatabase>
23 #include <QSqlTableModel>
33 const QString DatabaseManager::DB_FILENAME = QString("my.db.sqlite");
34 const QString DatabaseManager::DATABASE = QString("QSQLITE");
35 const QString DatabaseManager::DB_TABLE_NAME_MEDIATYPE = QString("mediatype");
36 const QString DatabaseManager::DB_TABLE_NAME_PLATFORM = QString("platform");
37 const QString DatabaseManager::DB_TABLE_NAME_FILE= QString("file");
38 const QString DatabaseManager::DB_TABLE_NAME_FILEPATH = QString("filepath");
39 const QString DatabaseManager::DB_TABLE_NAME_SETUP = QString("setup");
40 const QString DatabaseManager::DB_TABLE_MEDIAIMAGECONTAINER = QString("mediaimagecontainer");
41 const QString DatabaseManager::DB_TABLE_MEDIAIMAGECONTAINER_MEDIAIMAGE = QString("mediaimagecontainer_mediaimage");
43 DatabaseManager::DatabaseManager(QObject *parent)
49 DatabaseManager::~DatabaseManager()
51 // no need to explicitily destroy sqlTableModel
52 // because it is parented QObject and will
53 // be destroyed when parent is destroyed
56 QSqlQueryModel* DatabaseManager::getDataModel(bool update)
58 if (!sqlTableModel || (sqlTableModel && !update)) sqlTableModel = getData();
62 bool DatabaseManager::openDB()
64 QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE");
65 db.setDatabaseName(DatabaseManager::getDbPath());
69 QString DatabaseManager::getDbPath()
73 path.append(QDir::home().path());
74 path.append(QDir::separator()).append(DB_FILENAME);
76 path.append(DB_FILENAME);
81 void DatabaseManager::resetModel()
83 if (!sqlTableModel) return;
87 // sql must return a count(*) value
88 int DatabaseManager::countRows(QString tableName, QString columnName, int id) const
90 QString sql = QString("SELECT COUNT(*) FROM %1 WHERE %2 = %3")
91 .arg(tableName).arg(columnName).arg(id);
95 numEntries = query.value(0).toInt();
99 EmuFrontObject* DatabaseManager::getDataObject(int id)
102 return getFilteredDataObject();
103 /*EmuFrontObject *plf = 0;
104 if (sqlTableModel->rowCount() == 1)
106 QSqlRecord record = sqlTableModel->record(0);
107 if (record.isEmpty())
109 throw new EmuFrontException(tr("No data available for id %1").arg(id));
111 else plf = recordToDataObject(&record);
116 EmuFrontObject* DatabaseManager::getDataObject(QString filter)
118 qDebug() << "Filtering data object" << filter;
119 filterDataObjects(filter);
120 qDebug() << "...done filtering.";
121 return getFilteredDataObject();
124 EmuFrontObject* DatabaseManager::getFilteredDataObject()
126 EmuFrontObject *plf = 0;
127 // TODO: if record has more than one the first instance is returned
128 // ... check if this is ok in all cases!
129 if (sqlTableModel->rowCount() >= 1)
131 QSqlRecord record = sqlTableModel->record(0);
132 if (record.isEmpty())
134 throw new EmuFrontException(tr("No filtered data available"));
136 else plf = recordToDataObject(&record);
141 EmuFrontObject* DatabaseManager::getDataObjectFromModel(QModelIndex *index)
143 if (!sqlTableModel) sqlTableModel = getDataModel();
144 QSqlRecord record = sqlTableModel->record(index->row());
145 return recordToDataObject(&record);
148 int DatabaseManager::getCurrentTimeStamp() {
149 return QDateTime::currentDateTime().toTime_t();