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Cannot store Array in DataStore?

Asked by

8 years ago

I was searching around for this error, found another answer on scriptinghelpers, but the fix the guy gave didn't work for me. I get the error 17:48:16.066 - Cannot store Array in DataStore 17:48:16.067 - Script 'Workspace.Script', Line 49 17:48:16.068 - Stack End" Note: That is not the actual data store name..

01local DSService = game:GetService('DataStoreService'):GetDataStore("Name") 
02game.Players.PlayerAdded:connect(function(plr)
03    local uniquekey = 'id-'..plr.userId
04    local leaderstats = Instance.new('IntValue', plr)
05    local savevalue =  Instance.new('IntValue')
06    local SaveFolder = Instance.new('Folder')
07    local SaveStone = Instance.new('IntValue')
08    local SaveClay = Instance.new('IntValue')
09    local SaveBrick = Instance.new('IntValue')
10    local SaveRawIron = Instance.new('IntValue')
11    local SaveIron = Instance.new('IntValue')
12    leaderstats.Name = 'leaderstats'
13    savevalue.Parent = leaderstats
14    savevalue.Name = 'Cash'
15    SaveFolder.Name = "SaveFolder"
16    SaveFolder.Parent = plr
17    SaveStone.Name = "SaveStone"
18    SaveStone.Parent = SaveFolder
19    SaveClay.Name = "SaveClay"
20    SaveClay.Parent = SaveFolder
21    SaveBrick.Name = "SaveBrick"
22    SaveBrick.Parent = SaveFolder
23    SaveRawIron.Name = "SaveRawIron"
24    SaveRawIron.Parent = SaveFolder
25    SaveIron.Name = "SaveIron"
26    SaveIron.Parent = SaveFolder
27    local GetSaved = DSService:GetAsync(uniquekey)
28    if GetSaved then
29        savevalue.Value = GetSaved[1]
30        SaveFolder = GetSaved[2]
31        SaveStone.Value = GetSaved[3]
32        SaveClay.Value = GetSaved[4]
33        SaveBrick.Value = GetSaved[5]
34        SaveRawIron.Value = GetSaved[6]
35        SaveIron.Value = GetSaved[7]
36    plr.PlayerGui.Invintory.Inv.Stone.Text = "Stone: "..SaveStone.Value
37    plr.PlayerGui.Invintory.Inv.Clay.Text = "Stone: "..SaveClay.Value
38    plr.PlayerGui.Invintory.Inv.Bricks.Text = "Stone: "..SaveBrick.Value
39    plr.PlayerGui.Invintory.Inv.RawIron.Text = "Stone: "..SaveRawIron.Value
40    plr.PlayerGui.Invintory.Inv.Iron.Text = "Stone: "..SaveIron.Value
41    else
42        local NumbersForSaving = {savevalue.Value,
43                                  SaveFolder,
44                                  SaveStone.Value,
45                                  SaveClay.Value,
46                                  SaveBrick.Value,
47                                  SaveRawIron.Value,
48                                  SaveIron.Value}
49        DSService:SetAsync(uniquekey, NumbersForSaving)
50    end
51end)
52 
53game.Players.PlayerRemoving:connect(function(plr)
54local uniquekey = 'id-'..plr.userId
55local Savetable = {plr.leaderstats.Cash.Value,
56                   plr.SaveFolder,
57                   plr.SaveFolder.SaveStone.Value,
58                   plr.SaveFolder.SaveClay.Value,
59                   plr.SaveFolder.SaveBrick.Value,
60                   plr.SaveFolder.SaveRawIron.Value,
61                   plr.SaveFolder.SaveIron.Value}
62DSService:SetAsync(uniquekey, Savetable)
63end)
 View all 63 lines...

JsonEncode it. Scarious 243 — 8y

How do I do that? dotProgram 0 — 8y

Answered... took 20 minutes but yw. Scarious 243 — 8y

1 answer

Answered by

Scarious 243

8 years ago

Edited 8 years ago

You can only have one (1) type of statistic stored in a table in a datastore...

plr.SaveFolder cannot be saved, because it is not the same type of object as plr.SaveFolder.SaveStone.Value

Solution?

JSONEncoding, and JSONDecoding...

To do JSONEncoding:

http://wiki.roblox.com/index.php?title=API:Class/HttpService/JSONEncode

Why is this useful? You can convert data into Strings.

But how do I do this? First, you must access the HttpService, this does not mean HttpService needs to be enabled though:

`1`	`HttpService` `=` `game:GetService("HttpService")`

Now, you will give the table you want to encode:

`1`	`local` `atable` `=` `{"A","B","a","b"}`

Since you have this, you can now begin to encode it...

`1`	`local` `encoding` `=` `HttpService:JSONEncode(atable)`

`2`	`print(encoding)`

Now, you have a string.

http://wiki.roblox.com/index.php?title=API:Class/HttpService/JSONDecode

When retrieving the data given to the datastore, you must now decode the encoding... You can go about this by using the JSONDecode("AString") event...

`1`	`local` `decoding` `=` `HttpService:JSONDecode(encoding)`

Now you have a table... hooray.

As for your script, now that I have explained this... will go as follows:

01HttpService = game:GetService("HttpService") -- Put this at the start of the script.
02 
03local EncodedTable = DSService:GetAsync(uniquekey)
04local DecodedTable
05if EncodedTable then
06    DecodedTable = EncodedTable:JSONDecode(EncodedTable)
07end
08if DecodedTable ~= nil then
09    savevalue.Value = DecodedTable[1]
10    SaveFolder = DecodedTable[2]
11    SaveStone.Value = DecodedTable[3]
12    SaveClay.Value = DecodedTable[4]
13    SaveBrick.Value = DecodedTable[5]
14    SaveRawIron.Value = DecodedTable[6]
15    SaveIron.Value = DecodedTable[7]
16    plr.PlayerGui.Invintory.Inv.Stone.Text = "Stone: "..SaveStone.Value
17    plr.PlayerGui.Invintory.Inv.Clay.Text = "Stone: "..SaveClay.Value
18    plr.PlayerGui.Invintory.Inv.Bricks.Text = "Stone: "..SaveBrick.Value
19    plr.PlayerGui.Invintory.Inv.RawIron.Text = "Stone: "..SaveRawIron.Value
20    plr.PlayerGui.Invintory.Inv.Iron.Text = "Stone: "..SaveIron.Value
21else
22    local NumbersForSaving = {
23        savevalue.Value,
24        SaveFolder,
25        SaveStone.Value,
26        SaveClay.Value,
27        SaveBrick.Value,
28        SaveRawIron.Value,
29        SaveIron.Value}
30    local EnocdedNFS = HttpService:JSONEncode(NumbersForSaving)
31    DSService:SetAsync(uniquekey,EncodedNFS)
32end
 View all 32 lines...

That's for the PlayerAdded, for the PlayerRemoving:

01game.Players.PlayerRemoving:connect(function(plr)
02local uniquekey = 'id-'..plr.userId
03local Savetable = {plr.leaderstats.Cash.Value,
04                   plr.SaveFolder,
05                   plr.SaveFolder.SaveStone.Value,
06                   plr.SaveFolder.SaveClay.Value,
07                   plr.SaveFolder.SaveBrick.Value,
08                   plr.SaveFolder.SaveRawIron.Value,
09                   plr.SaveFolder.SaveIron.Value}
10local EncodedSt = HttpService:JSONEncode(Savetable)
11DSService:SetAsync(uniquekey, EncodedSt)
12end)

This should do it for you... There could be errors, it was done in the Tab for this.

-Taryo

Thgirypoc (C) 6102 Oyrat

When I changed everything out, I am now getting a blue underline under DSService:SetAsync(uniquekey,EncodedNFS) @ line 57 it says "W001 Unknown Global "EncodedNFS"" dotProgram 0 — 8y

And when I load the game I get 2 new erros 18:41:26.315 - Place has to be opened with Edit button to access DataStores 18:41:26.320 - Workspace.Script:29: attempt to index upvalue 'DSService' (a nil value) dotProgram 0 — 8y

Oh, the second error is because you must go to roblox develop page, and then press edit on the game to use datastore system... assuming you have studio api access enabled... which is another thing. Scarious 243 — 8y

Also, if DSService is a nil value... you couldn't have used it in your previous answer.. you should still have your datastoreservice. Scarious 243 — 8y

Cannot store Array in DataStore?

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