Provide facilities to migrate from legacy settings location

This is for a case of renaming an organisation or an application

1 files changed, 21 insertions, 1 deletions

diff --git a/settings.h b/settings.h
index a6c0420e..ab3aae8b 100644
--- a/settings.h
+++ b/settings.h
@@ -28,7 +28,17 @@ namespace QMatrixClient
 {

     class Settings: public QSettings

     {

+            Q_OBJECT

         public:

+            /**

+             * Use this function before creating any Settings objects in order

+             * to setup a read-only location where configuration has previously

+             * been stored. This will provide an additional fallback in case of

+             * renaming the organisation/application.

+             */

+            static void setLegacyNames(const QString& organizationName,

+                                       const QString& applicationName = {});

+

 #if defined(_MSC_VER) && _MSC_VER < 1900

             // VS 2013 (and probably older) aren't friends with 'using' statements

             // that involve private constructors

@@ -41,6 +51,16 @@ namespace QMatrixClient
                                       const QVariant &value);

             Q_INVOKABLE QVariant value(const QString &key,

                                        const QVariant &defaultValue = {}) const;

+            Q_INVOKABLE bool contains(const QString& key) const;

+            Q_INVOKABLE QStringList childGroups() const;

+

+        private:

+            static QString legacyOrganizationName;

+            static QString legacyApplicationName;

+

+        protected:

+            const QSettings legacySettings { legacyOrganizationName,

+                                             legacyApplicationName };

     };

 

     class SettingsGroup: public Settings

@@ -69,7 +89,7 @@ namespace QMatrixClient
     class AccountSettings: public SettingsGroup

     {

             Q_OBJECT

-            Q_PROPERTY(QString userId READ userId)

+            Q_PROPERTY(QString userId READ userId CONSTANT)

             Q_PROPERTY(QString deviceId READ deviceId WRITE setDeviceId)

             Q_PROPERTY(QString deviceName READ deviceName WRITE setDeviceName)

             Q_PROPERTY(QUrl homeserver READ homeserver WRITE setHomeserver)