Module:Is instance and Module:Is instance/sandbox: Difference between pages

Content deleted Content added

@@ Line 1: / Line 1: @@
 local p = {};
+function p._main(args)
-local function checklayer(depth) -- check subclasses of items at current depth
+	--local pargs = frame:getParent().args
-	checklist[depth+1] = {} -- setup next layer of table
+	value = args.value
-	local j = 0
+	local qid = args.qid or ""
-	for j = 1,#checklist[depth] do -- loop over items at current depth
+	if qid == '' then
-		local property
-		if depth == 1 then
-			property = "P31" -- use P31 for depth 1
-		else
-			property = "P279" -- use P279 for depths 2+
-		end
-		local subclasses = mw.wikibase.getBestStatements(checklist[depth][j],property) -- get P31 or P279 statements
-		for i,statement in ipairs(subclasses) do -- loop through items at next depth
-			if statement.mainsnak.snaktype == 'value' then
-				local newitem = statement.mainsnak.datavalue.value.id
-				if newitem == value then
-					isInstance = true
-				else
-					checklist[depth+1][#checklist[depth+1]+1] = newitem -- add item to next depth of checklist table
-				end
-			end
-		end
-	end
-	return isInstance
-end
-function p.main(frame)
-	local args = frame.args
-	local pargs = frame:getParent().args
-	value = args.value or pargs.value
-	local qid = args.qid or pargs.qid or ""
-	if qid == "" then
 		qid = mw.wikibase.getEntityIdForCurrentPage()
 	end
@@ Line 37: / Line 11: @@
 		return 0
 	end
-	checklist = {{qid}}
+	local checklist,depth,maxdepth,isInstance = {{qid}},0,nil,false
-	local md = args.maxdepth or pargs.maxdepth
+	if args.maxdepth then
+		maxdepth = tonumber(args.maxdepth)
-	if md then
-		maxdepth = tonumber(md)
 	else
 		maxdepth = 5
 	end
-	depth = 0 -- current depth
+	local function checklayer(depth) -- check subclasses of items at current depth
+		checklist[depth+1] = {} -- setup next layer of table
-	isInstance = false -- assume false until match found
+		local j = 0
+		for j = 1,#checklist[depth] do -- loop over items at current depth
+			local property
+			if depth == 1 then
+				property = "P31" -- use P31 for depth 1
+			else
+				property = "P279" -- use P279 for depths 2+
+			end
+			local subclasses = mw.wikibase.getBestStatements(checklist[depth][j],property) -- get P31 or P279 statements
+			for i,statement in ipairs(subclasses) do -- loop through items at next depth
+				if statement.mainsnak.snaktype == 'value' then
+					local newitem = statement.mainsnak.datavalue.value.id
+					if newitem == value then
+						isInstance = true
+					else
+						checklist[depth+1][#checklist[depth+1]+1] = newitem -- add item to next depth of checklist table
+					end
+				end
+			end
+		end
+		return isInstance
+	end
 	while not isInstance and depth<maxdepth do
 		depth = depth+1
@@ Line 54: / Line 49: @@
 	end
 	return depth -- return depth that item was found
+end
+function p.main(frame)
+	return p._main(frame.args)
 end