Creating & Saving dictionary to a datastore

Help and Feedback Scripting Support
#1

So I’m working on an inventory system, when a player joins the game, there is folders created as such:
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So what I wanted to do was actually way easier thought than done, I figured that when saving player data, I would loop through these folders (i would use values for ‘items’ and ‘materials’ etc.) and create a dictionary for the players stuff, the code I did for this was REALLY messy and confusing, so, look at it at your own risk.

game.Players.PlayerRemoving:Connect(function(player)
	local toSave = {}
	local Equipped = toSave.Equipped
	local Materials = toSave.Materials
	local Items = toSave.Items
	local Inventory = player.Inventory
	for _,v in pairs(Inventory.Equipped:GetChildren()) do
		local item = toSave.Items[v.Value]
	end
	for _,v in pairs (Inventory.Materials:GetChildren()) do		
		local item = toSave.Materials[v.Value]
		local quan = v.Quantity
		local quantity = toSave.Materials[v].quan
	end
	for _,v in pairs (Inventory.Items:GetChildren()) do
		local item = toSave.Items[v.Value]
	end
	local s, e = pcall(function()
		InventoryDS:SetAsync(player.UserId, toSave)
	end)
	
	if s then
		print("Success!")
	end
	
	if e then
		print("Error!")
	end
end)

I know there’s a lot of things that you can critique here, eg: the method of saving, using the userid as a key, so on and so forth, I’m aware of this and I just typed this all up to try and get something going at least.

This is what an item would of looked like in the explorer:
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(string val name, int val quantity)

#2

Does this code work or is it not saving?

#4

It doesn’t work, here’s the error that occured when I tried to create some test values to save.

	for _,v in pairs(Inventory.Equipped:GetChildren()) do
		local item = toSave.Items[v.Value] -- the line that the error occured on
	end

error:

ServerScriptService.Inventory:38: attempt to index nil with ‘itemtest’

this is the error that I received ^
‘itemtest’ was the value of the “item”, aka the name of what the item would’ve been

#5

Is it out of bounds with the array?

#6

I’m not too sure what you’re asking, could you clarify?

#7

Is the index you’re trying to reference in the array within the length of the array?

#8

I was trying to add this item to the dictionary, I’m guessing that I’m doing it wrong, I’m not too sure how I can add that item to the dictionary, I’m aiming for the dictionary to look something along the lines of

	local toSave = {
		["Materials"] = 
			{
				["Wood"] = {
					["Quantity"] = 50
				},
				
				["Ore"] = {
					["Quantity"] = 30
				}
			},
		["Items"] = {
			"Item1",
			"item2"
		}
	}
#9

It might be due to the way you are trying to access the data in the dictionary, by using v.Value. Have you tried using numbers?

#10

v.Value was my attempt at saving the value of the integer / string values stored in the player’s inventory folder. At this point I don’t know how to save value into the dictionary.

#11

Try and see if this works.

image
image477×579 19.3 KB

3 Likes
#12

Might I ask, how would you read from the dictionary then? Supposing I :GetAsync() and retrieve the players data, how could I access for example the wood inside materials with quantity 50?

#13

If you need to read from the already existing data to simply increment it use :UpdateAsync() instead of SetAsync.