Setting up datastore2

TyDye8 · February 20, 2020, 5:23pm

What do you want to achieve? I want to get my datastore2 script working.

What is the issue?

local ReplicatedStorage = game:GetService("ReplicatedStorage")
local Players = game:GetService("Players")
local ServerScriptService = game:GetService("ServerScriptService")
local DataStore2 = require(game.ServerScriptService.DataStore2)
DataStore2.Combine("DATA", "Stats", "Inventory")

local Stats = {
	Strength = 0;
	Rebirths = 0;
	Cash = 1000;
	Speed = 20
}

local Inventory = {
	Cat = false;
	BigGear = false
	}



local playersavetable = {};

local function loadStarterData(Player)
		local leaderstats = Instance.new("Folder")
		leaderstats.Name = "leaderstats"
		leaderstats.Parent = Player
		local Inv = Instance.new("Folder")
		Inv.Name = "Inventory"
		Inv.Parent = leaderstats
		for statname, statvalue in pairs(Stats) do
			if type(statvalue) == 'number' then
			local intvalue = Instance.new("IntValue")
			intvalue.Name = statname
			intvalue.Value = statvalue
			intvalue.Parent = leaderstats
			end
			for statname, statvalue in pairs(Inventory) do
			if type(statvalue) == 'boolean' then
			local intvalue = Instance.new("BoolValue")
			intvalue.Name = statname
			intvalue.Value = statvalue
			intvalue.Parent = Inv
			end
		end
	end
		end

local function loadData(player)
	local Data
	local s, e = pcall(function()
	Data = DataStore2:GetAsync('UserId'..player.UserId)
	end)
	
	if s then 
		print (player.Name.."Data loaded")
	else
		print(player.Name.."Data failed to load")
	end
	
	if Data then
		for statname, statvalue in pairs(Data) do
			if type(statvalue) == "number" then
			player.leaderstats[statname].Value = statvalue
			else if type(statvalue) == "boolean" then
			player.leaderstats.Inventory[statname].Value = statvalue
			end
			end
		end
		print(player.Name.."Data has been loaded")
	else
		print(player.Name.."No data found! generating..")
		end
	end

local function saveData(player, Stats)
	--if RunService:IsStudio() then return end
	local Data = {}
	for _, stat in ipairs(Stats:GetChildren()) do
   if not stat:IsA("Folder") then
       Data[stat.Name] = stat.Value
   end
end
	local s, e = pcall(function()
		DataStore2:SetAsync('UserId'..player.UserId, Data)
	end)
		if s then 
	print(player.Name.."Data has been saved")
		else
	warn (player.Name.."Data failed to save"..e)
	end
end

ReplicatedStorage.SaveEvent.OnServerEvent:Connect(function(player)
 saveData(player, player.leaderstats)	
end)

Players.PlayerAdded:Connect(function(player)
	playersavetable[player] = tick()
	loadStarterData(player)
	loadData(player)
end)

Players.PlayerRemoving:Connect(function(player)
	saveData(player, player.leaderstats)
end)

An error it is outputting is " [ TyDye_RBLXData failed to saveServerScriptService.datastore:84: attempt to call method ‘SetAsync’ (a nil value)]"
There are two issues, the data is not saving and everything in the inventory folder is duplicated 4 times.

What solutions have you tried so far? MANY THINGS! I have studio datastore API enabled, I have the datastore2 “SaveInStudio” boolvalue. I have also been working on this script for nearly an hour and have made little to no progress. I have looked on the datastore2 documentation but that helped me little to none.

Tom_atoes · February 20, 2020, 5:25pm

Where is line 78, please provide this info in the future.

TyDye8 · February 20, 2020, 5:27pm

local function saveData(player, Stats)
	--if RunService:IsStudio() then return end
	local Data = {}
-----------	for _, stat in ipairs(Stats:GetChildren()) do
   if not stat:IsA("Folder") then
       Data[stat.Name] = stat.Value
   end
end
	local s, e = pcall(function()
		DataStore2:SetAsync('UserId'..player.UserId, Data)
	end)
		if s then 
	print(player.Name.."Data has been saved")
		else
	warn (player.Name.."Data failed to save"..e)
	end
end

Line 78 is the 2nd line I have commented out in this reply (It is not commented in the actual script)

Tom_atoes · February 20, 2020, 5:49pm

The “Stats” variable is nil, where are you defining it?

TyDye8 · February 20, 2020, 5:50pm

That is the name of the first table and one of the datastores

DataStore2.Combine("DATA", "Stats", "Inventory")

TyDye8 · February 20, 2020, 6:33pm

Ahhh! Is it even possible todo this with two separate tables or am I just missing something? Please note that this used to be a normal datastore script but I am attempting to make it datastore2 and add a separate table

ReturnedTrue · February 20, 2020, 6:38pm

Both times in the Script you call saveData() with the Player but without the Stats.

You can fix this by either calling saveData like, saveData(player, player.leaderstats) or by editing the saveData function to call GetChildren on player.leaderstats, player.leaderstats:GetChildren().

Eandvwigle · February 20, 2020, 6:45pm

Your not the only one who has this struggle. Recently I’ve been trying a lot of different things, even resorting to the toolbox, but I can never really save so much as leaderstats. I mean you can try AlvinBlox’s tutorial on DataStores, but that hasn’t really helped me since I want to work with 2 values, not just one. I have a hard time with DataStores, and I think a lot of people do. Maybe when this get’s resolved I will be able to learn a thing or two. For now, I have no real suggestions other than look at AlvinBlox’s tutorial, but then again, he only uses one value.

TyDye8 · February 20, 2020, 6:51pm

Hooray! We fixed a issue! but now I get this output " [ TyDye_RBLXData failed to saveServerScriptService.datastore:84: attempt to call method ‘SetAsync’ (a nil value)]"

EDIT: Updated OP to make it easier for others to help.

ReturnedTrue · February 20, 2020, 6:55pm

Looking at the code again, you’re trying to use DataStore2 just like normal DataStores which is not the case.

DataStore2 has indivdual DataStores for each player which you open via DataStore2(Player, "DataStoreName"), these objects have methods such as: :Get(), :Set(), etc that do not take Keys.

The API will give you a bigger insight:

API - DataStore2

TyDye8 · February 20, 2020, 7:08pm

I tried changing the SetAsync thing to

DataStoreService:GetDataStore("Stats"):GetAsync(player.UserId)

for both saving and loading

local function loadData(player)
	local Data
	local s, e = pcall(function()
	DataStoreService:GetDataStore("Stats"):GetAsync(player.UserId)
	end)
	
	if s then 
		print (player.Name.."Data loaded")
	else
		warn (player.Name.."Data failed to load".. e)
	end
	
	if Data then
		for statname, statvalue in pairs(Data) do
			if type(statvalue) == "number" then
			player.leaderstats[statname].Value = statvalue
			else if type(statvalue) == "boolean" then
			player.leaderstats.Inventory[statname].Value = statvalue
			end
			end
		end
		print(player.Name.."Data has been loaded")
	else
		print(player.Name.."No data found! generating..")
		end
	end

local function saveData(player, Stats)
	--if RunService:IsStudio() then return end
	local Data = {}
	for _, stat in ipairs(Stats:GetChildren()) do
   if not stat:IsA("Folder") then
       Data[stat.Name] = stat.Value
   end
end
	local s, e = pcall(function()
		DataStoreService:GetDataStore("Stats"):GetAsync(player.UserId)
	end)
		if s then 
	print(player.Name.."Data has been saved")
		else
	warn (player.Name.."Data failed to save"..e)
	end
end

It took the errors away but when I join the game It prints my data has been loaded and instantly after prints that no data was found generating.

ReturnedTrue · February 20, 2020, 7:12pm

You never define Data as what GetAsync returns, furthermore Data is never going to be loaded.
FYI: Just because the pcall succeeds does not mean the GetAsync returned anything.

Also, incide the saveData pcall you used GetAsync, you should be changing that to SetAsync with the arguments of the Key and the Data.