Do retriever functions in moduleScripts only work on one side?

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#1

Okay, the title is a bit lackluster, so let me elaborate.

I have tried making a sample moduleScript for fun to practice OOP (Object Oriented Programming), and I wanted to create a Retriever function. Basically all objects on creation are put into a table, and that table is being searched through with that function, taking a unique ID as a parameter.

function sample.GetObjectById(id:number)
	local found = nil
	
	print(STORAGE) -- The storage table (prints out nil)
	
	for i, object in pairs(STORAGE) do
		if (object.Identifier == id) then
			found = object
			break
		end
	end
	
-- In this case, the object.Identifier is a property of the object

	return found
end

Basically finding the same value of a property that was inputted as a parameter.

However, I found that the client isn’t aware of objects created by the server. Therefore, it sees the storage table as nil (see the print above). Am I doing something wrong or is this intended behavior? I would also appreciate possible workarounds for this, for potential future modules.

TL:DR - The function in an OOP module script, when called from the client, isn’t aware of the things happening on the server.

Any help appreciated!

#2

That is intended behavior; when the client and server require a ModuleScript, they receive two different versions of the ModuleScript

Yea, but be mindful that metatables don’t transfer over the client/server boundary

2 Likes
#3

Thank you for your answer!

Does this mean that I have to send the data via RemoteEvents in these types of situations?

#4

Sorry to bother you again, but what does that exactly mean? Do values become nonexistent when reaching the client?

#5

Let’s say you have a table set up like this:

local t = setmetatable({k=1}, {__call=print})

If you tried to pass it from one boundary to the next like so:

FireServer(t)
-- or
FireAllClients(t)

The metatable won’t exist on the other end:

OnServerEvent:Connect(function(_, t)
    print(getmetatable(t)) --> nil
end)

OnClientEvent:Connect(function(t)
    print(getmetatable(t)) --> nil
end)

This roblox article has more info

1 Like
#6

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