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Updated database interface.

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This commit is contained in:
Martin Rotter 2013-11-16 08:31:57 +01:00
parent b946da1b87
commit a3ce4f06d1
1 changed files with 17 additions and 12 deletions
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29
src/core/databasefactory.cpp
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@ -75,23 +75,28 @@ QSqlDatabase DatabaseFactory::initialize(const QString &connection_name) {
database.exec("PRAGMA temp_store = MEMORY");
// Sample query which checks for existence of tables.
QSqlQuery q = database.exec("SELECT value FROM Information WHERE key = 'schema_version'");
QSqlQuery query = database.exec("SELECT value FROM Information WHERE key = 'schema_version'");
if (q.lastError().isValid()) {
if (query.lastError().isValid()) {
qWarning("Error occurred. Database is not initialized. Initializing now.");
QFile file_init(APP_MISC_PATH + QDir::separator() + APP_DB_INIT_FILE);
file_init.open(QIODevice::ReadOnly | QIODevice::Text);
QStringList statements = QString(file_init.readAll()).split(APP_DB_INIT_SPLIT);
if (!file_init.open(QIODevice::ReadOnly | QIODevice::Text)) {
// Database initialization file not opened. HUGE problem.
qFatal("Databaza initialization file '%s' was not found. Database is uninitialized.",
APP_DB_INIT_FILE);
}
QStringList statements = QString(file_init.readAll()).split(APP_DB_INIT_SPLIT,
QString::SkipEmptyParts);
database.exec("BEGIN TRANSACTION");
foreach(QString i, statements) {
q = database.exec(i);
if (q.lastError().isValid()) {
if (q.lastError().number() != -1) {
break;
}
query = database.exec(i);
if (query.lastError().isValid()) {
qFatal("Database initialization failed. Initialization script '%s' is not correct.",
APP_DB_INIT_FILE);
}
}
@ -99,15 +104,15 @@ QSqlDatabase DatabaseFactory::initialize(const QString &connection_name) {
qDebug("Database backend should be ready now.");
}
else {
q.next();
query.next();
qDebug("Database connection '%s' to file '%s' seems to be established.",
qPrintable(connection_name),
qPrintable(QDir::toNativeSeparators(database.databaseName())));
qDebug("Database has version '%s'.", qPrintable(q.value(0).toString()));
qDebug("Database has version '%s'.", qPrintable(query.value(0).toString()));
}
q.finish();
query.finish();
}
return database;