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-rw-r--r--src/qt/optionsmodel.cpp21
-rw-r--r--src/qt/optionsmodel.h4
2 files changed, 24 insertions, 1 deletions
diff --git a/src/qt/optionsmodel.cpp b/src/qt/optionsmodel.cpp
index cc2cbc0e66..684db71a8c 100644
--- a/src/qt/optionsmodel.cpp
+++ b/src/qt/optionsmodel.cpp
@@ -43,6 +43,8 @@ void OptionsModel::Init(bool resetSettings)
if (resetSettings)
Reset();
+ checkAndMigrate();
+
QSettings settings;
// Ensure restart flag is unset on client startup
@@ -429,3 +431,22 @@ bool OptionsModel::isRestartRequired()
QSettings settings;
return settings.value("fRestartRequired", false).toBool();
}
+
+void OptionsModel::checkAndMigrate()
+{
+ // Migration of default values
+ // Check if the QSettings container was already loaded with this client version
+ QSettings settings;
+ static const char strSettingsVersionKey[] = "nSettingsVersion";
+ int settingsVersion = settings.contains(strSettingsVersionKey) ? settings.value(strSettingsVersionKey).toInt() : 0;
+ if (settingsVersion < CLIENT_VERSION)
+ {
+ // -dbcache was bumped from 100 to 300 in 0.13
+ // see https://github.com/bitcoin/bitcoin/pull/8273
+ // force people to upgrade to the new value if they are using 100MB
+ if (settingsVersion < 130000 && settings.contains("nDatabaseCache") && settings.value("nDatabaseCache").toLongLong() == 100)
+ settings.setValue("nDatabaseCache", (qint64)nDefaultDbCache);
+
+ settings.setValue(strSettingsVersionKey, CLIENT_VERSION);
+ }
+} \ No newline at end of file
diff --git a/src/qt/optionsmodel.h b/src/qt/optionsmodel.h
index 3b491ceac2..b23b5f2607 100644
--- a/src/qt/optionsmodel.h
+++ b/src/qt/optionsmodel.h
@@ -84,9 +84,11 @@ private:
/* settings that were overriden by command-line */
QString strOverriddenByCommandLine;
- /// Add option to list of GUI options overridden through command line/config file
+ // Add option to list of GUI options overridden through command line/config file
void addOverriddenOption(const std::string &option);
+ // Check settings version and upgrade default values if required
+ void checkAndMigrate();
Q_SIGNALS:
void displayUnitChanged(int unit);
void coinControlFeaturesChanged(bool);