DataStore not retrieving data

Help and Feedback Scripting Support
#1

I followed the official roblox Save Player Data Article ( Documentation - Roblox Creator Hub ) but for some reason it doesn’t work. I don’t get any errors. I’ve tried with prints and it confirms that the data is saved but when I join back it doesn’t see any saved data

local PlayerStatManager = {}

local DataStoreService = game:GetService("DataStoreService")
local playerData = DataStoreService:GetDataStore("playerData")

local sessionData = {}
local AUTOSAVE_INTERVAL = 60

function PlayerStatManager:ChangeStat(player,statName,value)
	local playerUserId = "Player_"..player.UserId
	assert(typeof(sessionData[playerUserId][statName]) == typeof(value), "ChangeStat error: types do not match")
	if typeof(sessionData[playerUserId][statName]) == "number" then
		sessionData[playerUserId][statName] = sessionData[playerUserId][statName] + value
		print(statName.." Value Added")
	else
		sessionData[playerUserId][statName] = value
		print("Value = Value")
	end
end

local function setupPlayerData(player)
	local playerUserId = "Player_"..player.UserId
	local success, data = pcall(function()
		local data = playerData:GetAsync(playerUserId)
	end)
	if success then
		if data then -- it says here that there is no data
			sessionData[playerUserId] = data
			print("Data Found")
		else
			sessionData[playerUserId] = {Coins=0, Stages=0, Level=0, Rebirths=0, Areas=1, Exp=0, MaxExp=10}
			print("No Data Found")
		end
	else
		warn("Cannot save data for player!")
	end
end

local function savePlayerData(playerUserId)
	if sessionData[playerUserId] then
		local tries = 0
		local success
		repeat
			tries = tries + 1
			success = pcall(function()
				playerData:SetAsync(playerUserId, sessionData[playerUserId])
			end)
			if not success then wait(1) end
		until tries == 3 or success
		if not success then
			warn("Cannot save data for player!")
		end
	end
end

local function saveOnExit(player)
	local playerUserId = "Player_"..player.UserId
	savePlayerData(playerUserId)
end

local function autoSave()
	while wait(AUTOSAVE_INTERVAL) do
		for playerUserId, data in pairs(sessionData) do
			savePlayerData(playerUserId)
		end
	end
end
spawn(autoSave)

game.Players.PlayerAdded:Connect(setupPlayerData)
game.Players.PlayerRemoving:Connect(saveOnExit)

return PlayerStatManager
1 Like
#2

You need a check for current players, as PlayerAdded does not always work as intended.

1 Like
#3

What do you mean with a check for current players?

#4 
for i,v in next, game.Players:GetPlayers()
 PlayerAdded(v)
end
game.Players.PlayerAdded:Connect(PlayerAdded)
#5

I still don’t get it I guess I’m being dumb

#6

In your snippet here, put the check for current players.

for i,v in next, game.Players:GetPlayers()
 PlayerAdded(v)
end

making it this

#7

Test this in game, you may have turned off API services for studio or playeradded isn’t running for some reason.

#8

PlayerAdded is running since it prints out that it didn’t find any data and I don’t have API services off and I tested it in-game aswell

#9

I still don’t get why the playeradded worked fine. Everytime a player joined the code ran
edit: and it doesn’t work it keeps saying there is an error while loading the requested module script

#10

Sometimes the first player joins before the PlayerAdded event is instanced and it won’t fire on the first player.

#11

ModuleScript? This must be to do with something else unless…?

#12

well the prints I put in the code has shown it does fire so that is not the problem

#13

What are you trying to say? (here you can enjoy some random text since it needs to be longer)

#14

Is there other scripts in the game or are you using the modulescript for datastore?

#15

I’m using the module script for the datastore there is nothing else except for calling the ChangeStat function to change the values

#16

Is the script you mentioned in the op the modulescript?

#17

What do you mean with in the op? The DataStore script in this post is in a module script

#18

Hmm, are there any errors?

Check if API is on.

#19

There are no errors and API is on and I’ve even tested it in-game

#20

I’m not sure on this, but I doubt datastores are best used in a modulescript.