How to use DataStore2 - Data Store caching and data loss prevention

Tom_atoes · September 17, 2018, 6:19pm

Hey, I’m really confused on how to add items to the players inventory. Anyone mind helping?

Alvin_Blox · September 17, 2018, 6:56pm

yeah go on

Tom_atoes · September 17, 2018, 7:02pm

So, I am not entirely sure what table I need to add my items to. Here is my code:

local DefaultInventory = {
	["Default"] = 1
}

Players.PlayerAdded:Connect(function(Plr)
	
	-- // Table Inventory
	
	local TableInventory = DataStore2("TableInventory3", Plr)
	
	TableInventory:SetBackup(3)
	
	TableInventory:BeforeInitialGet(function(Inventory)
		
		local Deserialized = {}
		
		for _, ItemId in pairs(Inventory) do
			for Key, Value in pairs(DefaultInventory) do
				if Value == ItemId then
					table.insert(Deserialized, Key)
				end
			end
		end
		
		return Deserialized
		
	end)
	
	TableInventory:BeforeSave(function(Inventory)
		
		local Serialized = {}
		
		for _, ItemName in pairs(Inventory) do
			table.insert(Serialized, DefaultInventory[ItemName])
		end
		
		return Serialized
		
	end)
	
	local function CallInvEvent(Value)
		ReplicatedStorage.DataEvents.TableInventory:FireClient(Plr, TableInventory:GetTable({DefaultInventory}))
	end
	
	CallInvEvent(TableInventory:GetTable({DefaultInventory}))

Kampfkarren · September 17, 2018, 7:10pm

Whenever you need to give a player an item, all you should need to do is Get, insert into the table, then Set.

Splandex · September 19, 2018, 2:57pm

Have you ever thought of branding datastore2(For example call it Safe Saving) for the use of players?

Kampfkarren · September 19, 2018, 7:50pm

I haven’t thought about it until now but that doesn’t sound like something I’d be interested in.

Tom_atoes · September 21, 2018, 7:02pm

I’ve tried this but it still doesn’t want to update the inventory.

ReplicatedStorage.DataEvents.Unboxed.OnServerEvent:Connect(function(Plr, Item)
	
	local TableInventory = DataStore2("TableInventory5", Plr)
	
	local NewTable = TableInventory:GetTable({})
	
	table.insert(NewTable, Item)
	
	TableInventory:Set({NewTable})

    for i, v in pairs(TableInventory:GetTable({})) do -- // Doesn't print anything I just added.
	
		print(i)
		print(v)
	
	end

end)

-- // Table Inventory
	
	local TableInventory = DataStore2("TableInventory5", Plr)
	
	TableInventory:SetBackup(3)
	
	TableInventory:BeforeInitialGet(function(Inventory)
		
		local Deserialized = {}
		
		for _, ItemId in pairs(Inventory) do
			for Key, Value in pairs(DefaultInventory) do
				if Value == ItemId then
					table.insert(Deserialized, Key)
				end
			end
		end
		
		return Deserialized
		
	end)
	
	TableInventory:BeforeSave(function(Inventory)
		
		local Serialized = {}
		
		for _, ItemName in pairs(Inventory) do
			table.insert(Serialized, DefaultInventory[ItemName])
		end
		
		return Serialized
		
	end)
	
	local function CallInvEvent(Value)
		ReplicatedStorage.DataEvents.TableInventory:FireClient(Plr, Value)
	end
	
	CallInvEvent(TableInventory:GetTable({DefaultInventory}))

	for i, v in pairs(TableInventory:GetTable({})) do
	
		print(i)
		print(v)
	
	end

Kampfkarren · September 21, 2018, 7:04pm

You’re setting the data to a table of your table. Try just using :Set(NewTable).

Also, :GetTable({}) is redundant, just use :Get({}) at that point. GetTable is only there for the default values.

Tom_atoes · September 21, 2018, 7:13pm

Doesn’t seem to work, updated code:

PlayerAdded:Connect(function(Plr)

    -- // Table Inventory
	
	local TableInventory = DataStore2("TableInventory7", Plr)
	
	TableInventory:SetBackup(3)
	
	TableInventory:BeforeInitialGet(function(Inventory)
		
		local Deserialized = {}
		
		for _, ItemId in pairs(Inventory) do
			for Key, Value in pairs(DefaultInventory) do
				if Value == ItemId then
					table.insert(Deserialized, Key)
				end
			end
		end
		
		return Deserialized
		
	end)
	
	TableInventory:BeforeSave(function(Inventory)
		
		local Serialized = {}
		
		for _, ItemName in pairs(Inventory) do
			table.insert(Serialized, DefaultInventory[ItemName])
		end
		
		return Serialized
		
	end)
	
	local function CallInvEvent(Value)
		ReplicatedStorage.DataEvents.TableInventory:FireClient(Plr, Value)
	end
	
	CallInvEvent(TableInventory:GetTable({DefaultInventory}))

	for i, v in pairs(TableInventory:Get({})) do
	
		print(i)
		print(v)
	
	end
end)

ReplicatedStorage.DataEvents.Unboxed.OnServerEvent:Connect(function(Plr, Item)
	
	local TableInventory = DataStore2("TableInventory7", Plr)
	
	local NewTable = TableInventory:Get({})
	
	table.insert(NewTable, Item)
	
	TableInventory:Set(NewTable)

end)

Kampfkarren · September 21, 2018, 7:15pm

Change this to :GetTable(DefaultInventory) and try again. You do it a couple of times it seems.

Tom_atoes · September 21, 2018, 7:46pm

Done that, but still isn’t adding anything to the inventory.

PlayerAdded:Connect(function(Plr)

-- // Table Inventory
	
	local TableInventory = DataStore2("TableInventory9", Plr)
	
	TableInventory:SetBackup(3)
	
	TableInventory:BeforeInitialGet(function(Inventory)
		
		local Deserialized = {}
		
		for _, ItemId in pairs(Inventory) do
			for Key, Value in pairs(DefaultInventory) do
				if Value == ItemId then
					table.insert(Deserialized, Key)
				end
			end
		end
		
		return Deserialized
		
	end)
	
	TableInventory:BeforeSave(function(Inventory)
		
		local Serialized = {}
		
		for _, ItemName in pairs(Inventory) do
			table.insert(Serialized, DefaultInventory[ItemName])
		end
		
		return Serialized
		
	end)
	
	local function CallInvEvent(Value)
		ReplicatedStorage.DataEvents.TableInventory:FireClient(Plr, Value)
	end
	
	CallInvEvent(TableInventory:GetTable(DefaultInventory))
	
end)

ReplicatedStorage.DataEvents.Unboxed.OnServerEvent:Connect(function(Plr, Item)
	
	local TableInventory = DataStore2("TableInventory9", Plr)
	
	local NewTable = TableInventory:Get({})
	
	table.insert(NewTable, Item)
	
	TableInventory:Set(NewTable)

end)

Kampfkarren · September 21, 2018, 8:32pm

How do you know it’s not being added to the inventory? You only call CallInvEvent the first time.

Tom_atoes · September 21, 2018, 8:43pm

When I rejoin nothing is in the inventory.

Kampfkarren · September 21, 2018, 8:45pm

Have you checked your output to make sure it’s actually saving? DataStore2 gives warnings when it intentionally doesn’t save.

Tom_atoes · September 21, 2018, 8:50pm

Didn’t get a warning in studio.

EDIT: SaveInStudio false I got this - 21:51:06.706 - Data store TableInventory9 attempted to save in studio while SaveInStudio is false.

Kampfkarren · September 21, 2018, 8:52pm

Check the “SaveInStudio” Value in ServerStorage.

Tom_atoes · September 21, 2018, 8:53pm

Already tried this, got no warnings.

Kampfkarren · September 21, 2018, 8:53pm

Can you PM me on this? Realized might be spamming the thread a bit.

Beartikal · September 23, 2018, 2:57pm

In studio in play solo mode if I press the stop button it freezes for about 8 seconds due to the BindOnClose or something in the module when it saves in studio. Any way to stop this or do I just have to not make it save in studio using the variable?

(Keep in mind i am using the module when i took it from your inventory and took it like 1 month after the module came out so mine might be outdated)

Kampfkarren · September 23, 2018, 5:15pm

Right now you just have to make it not save in studio until the BindToClose studio patch is rolled out. Sorry for the inconvenience.