QVariant SettingsDatabase::value(const QString &key, const QVariant &defaultValue) const
{
const QString effectiveKey = d->effectiveKey(key);
QVariant value = defaultValue;
SettingsMap::const_iterator i = d->m_settings.constFind(effectiveKey);
if (i != d->m_settings.constEnd() && i.value().isValid()) {
value = i.value();
} else if (d->m_db.isOpen()) {
// Try to read the value from the database
QSqlQuery query(d->m_db);
query.prepare(QLatin1String("SELECT value FROM settings WHERE key = ?"));
query.addBindValue(effectiveKey);
query.exec();
if (query.next()) {
value = query.value(0);
if (debug_settings)
qDebug() << "Retrieved:" << effectiveKey << "=" << value;
}
// Cache the result
d->m_settings.insert(effectiveKey, value);
}
return value;
}
QString Settings::toString() const
{
QString result = "{\n";
for (SettingsMap::const_iterator it = _settings.constBegin(); it != _settings.constEnd(); ++it)
{
result += QString(" \"%1\":\"%2\",\n").arg(_markup(it.key()))
.arg(_markup(it.value().toString()));
}
result += " \"#end\": \"\"\n";
result += "}\n";
return result;
}