From 3879ca3845eea8b6154429c795364f7d79160483 Mon Sep 17 00:00:00 2001
From: Brandon Talbot <bjtal91@gmail.com>
Date: Sat, 2 Jul 2016 08:11:03 +0200
Subject: [PATCH] Major refactor: V0.1.1 * Added settings migration tool *
 Fixes crash when loading with outdated settings

---
 DJBags.toc                    |    2 +-
 src/lua/settings/settings.lua |   19 +++++++++++++++++++
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/DJBags.toc b/DJBags.toc
index 917e6dc..7fecc7e 100644
--- a/DJBags.toc
+++ b/DJBags.toc
@@ -2,7 +2,7 @@
 ## Title: DJBags
 ## Author: DarkJaguar91
 ## Notes: BagAddon - BETA
-## Version: 0.1.0
+## Version: 0.1.1
 ## SavedVariables: DJBagsConfig
 
 src/manifest.xml
\ No newline at end of file
diff --git a/src/lua/settings/settings.lua b/src/lua/settings/settings.lua
index a21e3e7..ed66a7c 100644
--- a/src/lua/settings/settings.lua
+++ b/src/lua/settings/settings.lua
@@ -1,5 +1,7 @@
 local NAME, ADDON = ...
 
+local DBVERSION = 1
+
 ADDON.settingsController = {}
 local settings = ADDON.settingsController
 settings.__index = settings
@@ -37,7 +39,24 @@ function settings:GetCharacterSettings()
     local realm = GetRealmName()
     local player = UnitName("player")
 
+    ADDON.settings.version = DBVERSION
     if DJBagsConfig and DJBagsConfig[realm] and DJBagsConfig[realm][player] then
+        if not DJBagsConfig[realm][player].version or DJBagsConfig[realm][player].version < DBVERSION then
+            DJBagsConfig[realm][player] = self:migrateDb(DJBagsConfig[realm][player].version or 0, DJBagsConfig[realm][player])
+        end
         ADDON.settings = DJBagsConfig[realm][player]
     end
+end
+
+settings.migrateFunc = {}
+settings.migrateFunc[1] = function ()
+    return ADDON.settings
+end
+
+function settings:migrateDb(version, old)
+    while version < DBVERSION do
+        version = version + 1
+        old = self.migrateFunc[version](old)
+    end
+    return old
 end
\ No newline at end of file
-- 
1.7.9.5