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 version 2 as published by
9 // the Free Software Foundation and appearing in the file gpl.txt included in the
10 // packaging of this file.
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/>.
21 #include <QSqlDatabase>
26 #include "dbcreator.h"
30 const int DbCreator::TABLES_COUNT = 3;
31 const QString DbCreator::TABLES[] = {"platform", "mediatype", "filepath", "mediaimagecontainer_filepath", "mediaimage", "mediaimagecontainer_mediaimage"};
33 DbCreator::DbCreator(QObject *parent) : QObject(parent)
38 bool DbCreator::createDB()
45 query.exec("DROP TABLE IF EXISTS mediaimagecontainer_mediaimage");
46 query.exec("DROP TABLE IF EXISTS mediaimagecontainer_filepath");
47 query.exec("DROP TABLE IF EXISTS filepath");
48 query.exec("DROP TABLE IF EXISTS setup");
49 query.exec("DROP TABLE IF EXISTS mediatype");
50 query.exec("DROP TABLE IF EXISTS platform");
51 query.exec("DROP TABLE IF EXISTS file");
52 query.exec("DROP TABLE IF EXISTS executable");
54 qDebug() << "Creating TABLE file";
56 ret = query.exec("CREATE TABLE IF NOT EXISTS config"
60 ret = query.exec("CREATE TABLE IF NOT EXISTS file"
61 "(id INTEGER PRIMARY KEY, "
66 "updatetime NUMERIC, "
69 if (!ret) throw QString("tbl file");
71 qDebug() << "Creating TABLE platform";
73 ret = query.exec("CREATE TABLE IF NOT EXISTS platform "
74 "(id INTEGER PRIMARY KEY, "
76 "fileid INTEGER REFERENCES file(id))");
78 if (!ret) throw QString("tbl platform");
80 qDebug() << "Creating TABLE mediatype ";
82 ret = query.exec("CREATE TABLE IF NOT EXISTS mediatype "
83 "(id INTEGER PRIMARY KEY, "
85 "fileid INTEGER REFERENCES file(id))");
87 if (!ret) throw QString("tbl mediatype");
89 qDebug() << "Creating TABLE setup";
91 ret = query.exec("CREATE TABLE IF NOT EXISTS setup "
92 "(id INTEGER PRIMARY KEY, "
93 "platformid INTEGER REFERENCES platform(id) ON DELETE CASCADE, "
94 "mediatypeid INTEGER REFERENCES mediatype(id) ON DELETE CASCADE, "
95 "filetypeextensions TEXT)");
97 if (!ret) throw QString("tbl setup");
99 qDebug() << "Creating table executable";
101 ret = query.exec("CREATE TABLE IF NOT EXISTS executable "
102 "(id INTEGER PRIMARY KEY, "
107 "setupid INTEGER REFERENCES setup(id))");
109 if (!ret) throw QString("tbl executable");
111 qDebug() << "Creating TABLE filepath";
113 ret = query.exec("CREATE TABLE IF NOT EXISTS filepath "
114 "(id INTEGER PRIMARY KEY, "
116 "filetypeid INTEGER, "
118 "lastscanned NUMERIC, "
119 "FOREIGN KEY (setupid) REFERENCES setup(id))");
121 if (!ret) throw QString("tbl filepath");
123 qDebug() << "Creating TABLE mediaimagecontainer_filepath";
125 ret = query.exec("CREATE TABLE IF NOT EXISTS mediaimagecontainer_filepath "
126 "(fileid INTEGER REFERENCES file(id), "
127 "filepathid INTEGER REFERENCES filepath(id), "
128 "updatetime NUMERIC)");
130 if (!ret) throw QString("tbl mediaimagecontainer_filepath");
133 qDebug() << "Creating TABLE mediaimagecontainer_mediaimage";
135 ret = query.exec("CREATE TABLE IF NOT EXISTS mediaimagecontainer_mediaimage "
136 "(mediaimagecontainerid INTEGER REFERENCES file(id), "
137 "mediaimageid INTEGER REFERENCES file(id))");
139 if (!ret) throw QString("tbl mediaimagecontainer_mediaimage");
142 "CREATE TRIGGER IF NOT EXISTS trg_onplatformdelete "
143 "AFTER DELETE ON platform "
145 " DELETE FROM setup WHERE setup.platformid = old.id;"
149 if (!ret) throw QString("trg_onplatformdelete");
152 "CREATE TRIGGER IF NOT EXISTS trg_onmediatypedelete "
153 "AFTER DELETE ON mediatype "
155 " DELETE FROM setup WHERE setup.mediatypeid = old.id;"
159 if (!ret) throw QString("trg_onmediatypedelete");
162 "CREATE TRIGGER IF NOT EXISTS trg_onsetupdelete "
163 "AFTER DELETE ON setup "
165 " DELETE FROM filepath WHERE filepath.setupid = old.id; "
166 " DELETE FROM executable WHERE executable.setupid = old.id; "
170 if (!ret) throw QString("trg_onsetupdelete");
173 "CREATE TRIGGER IF NOT EXISTS trg_onfilepathdelete "
174 "AFTER DELETE ON filepath "
176 " DELETE FROM mediaimagecontainer_filepath WHERE mediaimagecontainer_filepath.filepathid=old.id; "
180 if (!ret) throw QString("trg_onfilepathdelete");
183 "CREATE TRIGGER IF NOT EXISTS trg_onmediaimagecontainerdelete "
184 "AFTER DELETE ON mediaimagecontainer_filepath "
186 " DELETE FROM mediaimagecontainer_mediaimage WHERE mediaimagecontainer_mediaimage.mediaimagecontainerid=old.fileid;"
190 if (!ret) throw QString("trg_onmediaimagecontainerdelete");
193 "CREATE TRIGGER IF NOT EXISTS trg_onmediaimagecontainer_mediaimagedelete "
194 "AFTER DELETE ON mediaimagecontainer_mediaimage "
196 " DELETE FROM file WHERE file.id=old.mediaimageid; "
197 " DELETE FROM file WHERE file.id=old.mediaimagecontainerid; "
200 if (!ret) throw QString("trg_onmediaimagecontainer_mediaimagedelete");
205 QString err = query.lastError().text();
206 throw QString("Couldn't CREATE '%1'!").arg(tbl).append(err);
212 * Check if database already exists.
213 * Returns false if doesn't or we don't have a connection.
215 bool DbCreator::dbExists()
217 for (int i = 0; i < TABLES_COUNT; ++i)
219 if (!tableExists(TABLES[i]))
221 qDebug() << "Table " << TABLES[i] << " missing.";
224 qDebug() << "Table " << TABLES[i] << " exists.";
229 bool DbCreator::tableExists(QString TABLE)
232 query.exec(QString("SELECT name FROM sqlite_master WHERE name='%1'").arg(TABLE));
236 bool DbCreator::deleteDB()
238 // return QFile::remove(getDbPath());