WoWInterface - attempt to concatenate local 'playerName' (a nil value)

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- - attempt to concatenate local 'playerName' (a nil value) (https://www.wowinterface.com/forums/showthread.php?t=59602)

BloodDragon

06-01-23 11:41 PM

attempt to concatenate local 'playerName' (a nil value)

1 Attachment(s)

Hey, I need your help.
My addon GildenSteuer sometimes shows the error after porting from a dungeon or using a portal:

1x GildenSteuer\GildenSteuer-3.4.lua:377: attempt to concatenate local 'playerName' (a nil value)

That is the line with the error:

Lua Code:

self:Debug("Add status request for " .. playerName .. " to queue")

Here is the Lines:

Lua Code:

function GildenSteuer:RequestStatus(playerName, timestamp)
    self:Debug("Add status request for " .. playerName .. " to queue")
    if timestamp == nil then
        timestamp = self:GetPlayerStatusDB(playerName, true).timestamp
    end
    local data = {"S", playerName}
    if timestamp ~= nil then
        table.insert(data, timestamp)
    end
    table.insert(self.outgoingQueue, data)
end

I hope anyone can help me.

Xrystal

06-02-23 06:00 AM

Have you checked that the playerName being passed isn't nil for some reason before calling the function ?

I see you are setting up PlayerName at the OnEnteringWorld event but, is it possible some of the functions accessing it are being called in before then ?

What I would do in your situation

Do a debug run on each function that uses PlayerName and see what order they run through and if there is a time where PlayerName is nil when used. If there is, and its a valid reason for it to be nil you can just check for not nil before continuing that function.

BloodDragon

06-02-23 12:47 PM

Either I'm stupid or I don't know. I can't find the error.

Dridzt

06-02-23 02:34 PM

Well GetGuildRosterInfo (and other API that rely on a roundtrip to server for information) don't always provide valid data early in the loading process.

You can either monitor GUILD_ROSTER_UPDATE or check that name is not _G.UNKNOWNOBJECT and level return is valid before trying to use the returns.

This is all assuming the addon doesn't try to call GetGuildRosterInfo on an unguilded character.

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