How do i get Attribute name in a ToString()

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#1

Hello, So i tried to set a property using an Attribute but it says argument #1 missing here is the code

v.Material = Enum.Material[tostring(v:GetAttribute("SecMaterial"))]

,btw it is in a for i,v in pairs(workspace:GetChildren()) do

#3

tried it without tostring(), but it didn’t work.

#4

You are getting this error because you are not checking if the Attribute exists first.

#5

I did check with an if statement.

#6

I’m only able to reproduce this issue if the Attribute itself does not exist.
Can you provide the if statement line.

#7

You should check the attribute’s presence within the game before you attempt to retrieve it.

if Instance and typeof(Instance) == "Instance" and Instance:IsA("Instance") and Instance:GetAttribute("Attribute") then
	-- Proceed
end
#8 


local function hasProperty(object, prop)
			local t = object:GetAttribute(prop)
	end
for i,v in pairs(game.Workspace:GetDescendants()) do
			local s3 = pcall(function() hasProperty(v, "BitUse") end)
			if s3 then
				if v:IsA("Part") or v:IsA("UnionOperation")  then
					v.Material = Enum.Material[tostring(v:GetAttribute("SecMaterial"))]
                                 end
                         end
end
#9

Remove the pcall(function()
What is happening is that pcall returns Success and Result
Since it is succeeding, the if statement goes through.

Or you can just add s3, s4 = pcall(function() …
and just check if s4 exists

#10

the pcall(function(), checks for the Attribute

#11

Oh well then here you go.

local hasProperty = script.GetAttribute
for _, v in pairs(workspace:GetDescendants()) do
	local material = hasProperty(v, "SecMaterial")
	if material and hasProperty(v, "BitUse") and v:IsA("BasePart")  then
		v.Material = material
	end
end

You may understand the fact that you can use Instance inheriting functions on a variable.

#12

GetAttribute won’t error if the attribute doesn’t exist so pcall returns Success. (Also you don’t return the property in the function)
@04nv solution should work for you.

1 Like
#13

ok, I’ll go straight to the point how do i get an attribute name using GetAttribute() function.

#14

Instance:GetAttributes is the function you’re looking for.

for index, value in pairs(Instance:GetAttributes()) do
    print(index) -- The attribute name.
end
#15

An attribute name with the GetAttribute function?

If you want to get all the attributes on an Instance: Instance:GetAttributes()
If you want to check if an attribute exists: if Instance:GetAttribute(“Attribute”) ~= nil then

#16

You could just shorten it to this, you don’t need pcall since it just returns nil

for _,v in workspace:GetDescendants() do
	if v:IsA("BasePart") and v:GetAttribute("BitUse") and v:GetAttribute("SecMaterial") then
		v.Material = Enum.Material[v:GetAttribute("SecMaterial")]
	end
end
#17 
for i,v in pairs(workspace:GetChildren()) do
print(v:GetAttribute("SecMaterial")) -- to print its value
end
#18

you forgot a do at the end of the for i,v

#20

For the line of code you just sent* @04nv solution solves your original problem

#21 
for i,v in pairs(workspace:GetChildren()) do
print(v:GetAttribute("SecMaterial")) -- to print its value
end
#22

This code you sent should work perfectly fine.