1 /***************************************************************************
2 * Copyright (C) 2005-07 by the Quassel IRC Team *
3 * devel@quassel-irc.org *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) version 3. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
21 #include "abstractsqlstorage.h"
26 AbstractSqlStorage::AbstractSqlStorage(QObject *parent)
32 AbstractSqlStorage::~AbstractSqlStorage() {
33 QHash<QPair<QString, int>, QSqlQuery *>::iterator iter = _queryCache.begin();
34 while(iter != _queryCache.end()) {
36 iter = _queryCache.erase(iter);
40 QSqlDatabase db = QSqlDatabase::database("quassel_connection");
44 QSqlDatabase::removeDatabase("quassel_connection");
47 QSqlDatabase AbstractSqlStorage::logDb() {
48 QSqlDatabase db = QSqlDatabase::database("quassel_connection");
49 if(db.isValid() && db.isOpen())
53 qWarning() << "Unable to Open Database" << displayName();
54 qWarning() << " -" << db.lastError().text();
57 return QSqlDatabase::database("quassel_connection");
60 bool AbstractSqlStorage::openDb() {
61 QSqlDatabase db = QSqlDatabase::database("quassel_connection");
62 if(db.isValid() && !db.isOpen())
65 db = QSqlDatabase::addDatabase(driverName(), "quassel_connection");
66 db.setDatabaseName(databaseName());
68 if(!hostName().isEmpty())
69 db.setHostName(hostName());
71 if(!userName().isEmpty()) {
72 db.setUserName(userName());
73 db.setPassword(password());
79 bool AbstractSqlStorage::init(const QVariantMap &settings) {
81 QSqlDatabase db = logDb();
82 if(!db.isValid() || !db.isOpen())
85 if(installedSchemaVersion() == -1) {
86 qDebug() << "Storage Schema is missing!";
90 if(installedSchemaVersion() > schemaVersion()) {
91 qWarning() << "Installed Schema is newer then any known Version.";
95 if(installedSchemaVersion() < schemaVersion()) {
96 qWarning() << "Installed Schema is not up to date. Upgrading...";
101 qDebug() << "Storage Backend is ready. Quassel Schema Version:" << installedSchemaVersion();
105 void AbstractSqlStorage::sync() {
106 QHash<QPair<QString, int>, QSqlQuery *>::iterator iter = _queryCache.begin();
107 while(iter != _queryCache.end()) {
109 iter = _queryCache.erase(iter);
115 QString AbstractSqlStorage::queryString(const QString &queryName, int version) {
117 version = schemaVersion();
119 QFileInfo queryInfo(QString(":/SQL/%1/%2/%3.sql").arg(displayName()).arg(version).arg(queryName));
120 if(!queryInfo.exists() || !queryInfo.isFile() || !queryInfo.isReadable()) {
121 qWarning() << "Unable to read SQL-Query" << queryName << "for engine" << displayName();
125 QFile queryFile(queryInfo.filePath());
126 if(!queryFile.open(QIODevice::ReadOnly | QIODevice::Text))
128 QString query = QTextStream(&queryFile).readAll();
131 return query.trimmed();
134 QString AbstractSqlStorage::queryString(const QString &queryName) {
135 return queryString(queryName, 0);
138 QSqlQuery *AbstractSqlStorage::cachedQuery(const QString &queryName, int version) {
139 QPair<QString, int> queryId = qMakePair(queryName, version);
140 if(!_queryCache.contains(queryId)) {
141 QSqlQuery *query = new QSqlQuery(logDb());
142 query->prepare(queryString(queryName, version));
143 _queryCache[queryId] = query;
145 return _queryCache[queryId];
148 QSqlQuery *AbstractSqlStorage::cachedQuery(const QString &queryName) {
149 return cachedQuery(queryName, 0);
152 QStringList AbstractSqlStorage::setupQueries() {
154 QDir dir = QDir(QString(":/SQL/%1/%2/").arg(displayName()).arg(schemaVersion()));
155 foreach(QFileInfo fileInfo, dir.entryInfoList(QStringList() << "setup*", QDir::NoFilter, QDir::Name)) {
156 queries << queryString(fileInfo.baseName());
161 bool AbstractSqlStorage::setup(const QVariantMap &settings) {
163 QSqlDatabase db = logDb();
165 qWarning() << "Unable to setup Logging Backend!";
169 foreach(QString queryString, setupQueries()) {
170 QSqlQuery query = db.exec(queryString);
171 if(!watchQuery(&query)) {
172 qWarning() << "Unable to setup Logging Backend!";
179 QStringList AbstractSqlStorage::upgradeQueries(int version) {
181 QDir dir = QDir(QString(":/SQL/%1/%2/").arg(displayName()).arg(version));
182 foreach(QFileInfo fileInfo, dir.entryInfoList(QStringList() << "upgrade*", QDir::NoFilter, QDir::Name)) {
183 queries << queryString(fileInfo.baseName(), version);
188 bool AbstractSqlStorage::upgradeDb() {
189 if(schemaVersion() <= installedSchemaVersion())
192 QSqlDatabase db = logDb();
194 for(int ver = installedSchemaVersion() + 1; ver <= schemaVersion(); ver++) {
195 foreach(QString queryString, upgradeQueries(ver)) {
196 QSqlQuery query = db.exec(queryString);
197 if(!watchQuery(&query)) {
198 qWarning() << "Unable to upgrade Logging Backend!";
207 int AbstractSqlStorage::schemaVersion() {
208 // returns the newest Schema Version!
209 // not the currently used one! (though it can be the same)
210 if(_schemaVersion > 0)
211 return _schemaVersion;
215 QDir dir = QDir(":/SQL/" + displayName());
216 foreach(QFileInfo fileInfo, dir.entryInfoList()) {
217 if(!fileInfo.isDir())
220 version = fileInfo.fileName().toInt(&ok);
224 if(version > _schemaVersion)
225 _schemaVersion = version;
227 return _schemaVersion;
230 bool AbstractSqlStorage::watchQuery(QSqlQuery *query) {
231 if(query->lastError().isValid()) {
232 qWarning() << "unhandled Error in QSqlQuery!";
233 qWarning() << " last Query:\n" << query->lastQuery();
234 qWarning() << " executed Query:\n" << query->executedQuery();
235 qWarning() << " bound Values:" << query->boundValues();
236 qWarning() << " Error Number:" << query->lastError().number();
237 qWarning() << " Error Message:" << query->lastError().text();
238 qWarning() << " Driver Message:" << query->lastError().driverText();
239 qWarning() << " DB Message:" << query->lastError().databaseText();