X-Git-Url: https://git.quassel-irc.org/?a=blobdiff_plain;f=src%2Fcore%2Fabstractsqlstorage.cpp;h=c100d4ef008ac797ab6ec6a573541c9164202b34;hb=cb53823eeecff3f033adfe2cb1a48d8b8a89dbae;hp=cb0745478d756d3bc3247457a1380c5559043644;hpb=1cb02004ee5973b89368bd84f234d4652794690d;p=quassel.git

diff --git a/src/core/abstractsqlstorage.cpp b/src/core/abstractsqlstorage.cpp
index cb074547..c100d4ef 100644
--- a/src/core/abstractsqlstorage.cpp
+++ b/src/core/abstractsqlstorage.cpp
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2005-2015 by the Quassel Project                        *
+ *   Copyright (C) 2005-2016 by the Quassel Project                        *
  *   devel@quassel-irc.org                                                 *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
@@ -41,7 +41,7 @@ AbstractSqlStorage::~AbstractSqlStorage()
 {
     // disconnect the connections, so their deletion is no longer interessting for us
     QHash<QThread *, Connection *>::iterator conIter;
-    for (conIter = _connectionPool.begin(); conIter != _connectionPool.end(); conIter++) {
+    for (conIter = _connectionPool.begin(); conIter != _connectionPool.end(); ++conIter) {
         QSqlDatabase::removeDatabase(conIter.value()->name());
         disconnect(conIter.value(), 0, this, 0);
     }
@@ -53,7 +53,14 @@ QSqlDatabase AbstractSqlStorage::logDb()
     if (!_connectionPool.contains(QThread::currentThread()))
         addConnectionToPool();
 
-    return QSqlDatabase::database(_connectionPool[QThread::currentThread()]->name());
+    QSqlDatabase db = QSqlDatabase::database(_connectionPool[QThread::currentThread()]->name(),false);
+
+    if (!db.isOpen()) {
+        qWarning() << "Database connection" << displayName() << "for thread" << QThread::currentThread() << "was lost, attempting to reconnect...";
+        dbConnect(db);
+    }
+
+    return db;
 }
 
 
@@ -90,6 +97,12 @@ void AbstractSqlStorage::addConnectionToPool()
         db.setPassword(password());
     }
 
+    dbConnect(db);
+}
+
+
+void AbstractSqlStorage::dbConnect(QSqlDatabase &db)
+{
     if (!db.open()) {
         quWarning() << "Unable to open database" << displayName() << "for thread" << QThread::currentThread();
         quWarning() << "-" << db.lastError().text();
@@ -138,10 +151,20 @@ Storage::State AbstractSqlStorage::init(const QVariantMap &settings)
 
 QString AbstractSqlStorage::queryString(const QString &queryName, int version)
 {
-    if (version == 0)
-        version = schemaVersion();
+    QFileInfo queryInfo;
+
+    // The current schema is stored in the root folder, while upgrade queries are stored in the
+    // 'versions/##' subfolders.
+    if (version == 0) {
+        // Use the current SQL schema, not a versioned request
+        queryInfo = QFileInfo(QString(":/SQL/%1/%2.sql").arg(displayName()).arg(queryName));
+        // If version is needed later, get it via version = schemaVersion();
+    } else {
+        // Use the specified schema version, not the general folder
+        queryInfo = QFileInfo(QString(":/SQL/%1/version/%2/%3.sql")
+                              .arg(displayName()).arg(version).arg(queryName));
+    }
 
-    QFileInfo queryInfo(QString(":/SQL/%1/%2/%3.sql").arg(displayName()).arg(version).arg(queryName));
     if (!queryInfo.exists() || !queryInfo.isFile() || !queryInfo.isReadable()) {
         qCritical() << "Unable to read SQL-Query" << queryName << "for engine" << displayName();
         return QString();
@@ -160,7 +183,8 @@ QString AbstractSqlStorage::queryString(const QString &queryName, int version)
 QStringList AbstractSqlStorage::setupQueries()
 {
     QStringList queries;
-    QDir dir = QDir(QString(":/SQL/%1/%2/").arg(displayName()).arg(schemaVersion()));
+    // The current schema is stored in the root folder, including setup scripts.
+    QDir dir = QDir(QString(":/SQL/%1/").arg(displayName()));
     foreach(QFileInfo fileInfo, dir.entryInfoList(QStringList() << "setup*", QDir::NoFilter, QDir::Name)) {
         queries << queryString(fileInfo.baseName());
     }
@@ -198,7 +222,8 @@ bool AbstractSqlStorage::setup(const QVariantMap &settings)
 QStringList AbstractSqlStorage::upgradeQueries(int version)
 {
     QStringList queries;
-    QDir dir = QDir(QString(":/SQL/%1/%2/").arg(displayName()).arg(version));
+    // Upgrade queries are stored in the 'version/##' subfolders.
+    QDir dir = QDir(QString(":/SQL/%1/version/%2/").arg(displayName()).arg(version));
     foreach(QFileInfo fileInfo, dir.entryInfoList(QStringList() << "upgrade*", QDir::NoFilter, QDir::Name)) {
         queries << queryString(fileInfo.baseName(), version);
     }
@@ -235,7 +260,8 @@ int AbstractSqlStorage::schemaVersion()
 
     int version;
     bool ok;
-    QDir dir = QDir(":/SQL/" + displayName());
+    // Schema versions are stored in the 'version/##' subfolders.
+    QDir dir = QDir(QString(":/SQL/%1/version/").arg(displayName()));
     foreach(QFileInfo fileInfo, dir.entryInfoList()) {
         if (!fileInfo.isDir())
             continue;
@@ -262,7 +288,7 @@ bool AbstractSqlStorage::watchQuery(QSqlQuery &query)
         QVariantMap boundValues = query.boundValues();
         QStringList valueStrings;
         QVariantMap::const_iterator iter;
-        for (iter = boundValues.constBegin(); iter != boundValues.constEnd(); iter++) {
+        for (iter = boundValues.constBegin(); iter != boundValues.constEnd(); ++iter) {
             QString value;
             QSqlField field;
             if (query.driver()) {