coa.16: Talents view no longer crashes on CoA custom classes

DataStore_Talents._GetTreeReference degrades to nil (was assert) when a custom class
(MONK, etc.) has no/partial talent reference data; Talents.lua skips background render
when GetTreeInfo returns no bg.

Altoholic/Altoholic.lua

@@ -552,6 +552,7 @@ function addon:GetSpellIDFromRecipeLink(link)
 end
 
 function addon:GetMoneyString(copper, color, noTexture)
+	copper = copper or 0		-- CoA: callers may pass a no-value DS getter result
 	color = color or "|cFFFFD700"
 
 	local gold = floor( copper / 10000 );
@@ -572,6 +573,7 @@ function addon:GetMoneyString(copper, color, noTexture)
 end
 
 function addon:GetTimeString(seconds)
+	seconds = seconds or 0		-- CoA: callers may pass a no-value DS getter result
 	local days = floor(seconds / 86400);				-- TotalTime is expressed in seconds
 	seconds = mod(seconds, 86400)
 	local hours = floor(seconds / 3600);
@@ -648,7 +650,7 @@ function Altoholic:FormatDelay(timeStamp)
 end
 
 function addon:GetRestedXP(character)
-	local rate = DS:GetRestXPRate(character)
+	local rate = DS:GetRestXPRate(character) or 0		-- CoA: getter returns no value for unscanned/partial chars
 
 	local coeff = 1
 	if addon.Options:Get("RestXPMode") == 1 then

Altoholic/Altoholic.toc

@@ -13,7 +13,7 @@
 
 ## Author: Thaoky, Telkar-RG
 ## X-Edited-By: Exiles (Sub-Net) — florian.berthold@sub-net.at
-## Version: 3.3.002b-coa.13
+## Version: 3.3.002b-coa.16
 ## X-Category: Inventory, Tradeskill, Mail
 ## X-Localizations: enUS, frFR, zhCN, zhTW, deDE, koKR, esES, esMX, ruRU
 ## X-Website: http://wow.curse.com/downloads/wow-addons/details/altoholic.aspx

Altoholic/Frames/TabCharacters.xml

@@ -275,7 +275,7 @@
 			</Button>
 			<Button name="$parent_Prof5" inherits="AltoViewIconTemplate" hidden="true">
 				<Anchors>
-					<Anchor point="BOTTOMLEFT" relativeTo="$parent_Prof4" relativePoint="BOTTOMRIGHT" >
+					<Anchor point="TOPLEFT" relativeTo="$parent_Prof1" relativePoint="BOTTOMLEFT" >
 						<Offset x="5" y="0" />
 					</Anchor>
 				</Anchors>

Altoholic/Frames/Talents.lua

@@ -337,6 +337,7 @@ function tns:Update(treeIndex)
 
 	-- textures are 90.625% of the original size
 	local _, bg = DS:GetTreeInfo(class, treeName)
+	if not bg then return end		-- CoA: no talent-tree background for this class (e.g. custom class with no reference data)
 	AltoholicFrameTalents_bgTopLeft:SetTexture(bg.."-TopLeft")
 	AltoholicFrameTalents_bgTopRight:SetTexture(bg.."-TopRight")
 	AltoholicFrameTalents_bgBottomLeft:SetTexture(bg.."-BottomLeft")

DataStore_Talents/DataStore_Talents.lua

@@ -239,9 +239,12 @@ local function	_GetClassReference(class)
 end
 
 local function _GetTreeReference(class, tree)
-	assert(type(class) == "string")
-	assert(type(tree) == "string")
-	return addon.ref.global[class].Trees[tree]
+	-- CoA: custom classes (MONK, etc.) may have no/partial talent reference data, so a
+	-- tree lookup can arrive with a nil tree name. Degrade to nil instead of asserting.
+	if type(class) ~= "string" or type(tree) ~= "string" then return end
+	local c = addon.ref.global[class]
+	if not c or not c.Trees then return end
+	return c.Trees[tree]
 end
 
 local function _IsClassKnown(class)