Problems with element?

[R7flOq7KeSsU]

Okay, now the problem is:

I can't create a table for Element "RadarArea"

ZoneInfo = {}
g_root = getRootElement()
function ResourceStart()
-- GangZones Setup
local ReadZones = executeSQLQuery("SELECT Name, PosX, PosY, Width, Height FROM LSWars_Zones")
local Zones = getElementsByType("radararea")
ZoneInfo[Zones] = {}
ZoneInfo[Zones].Name = ""
 
for k,v in pairs(ReadZones) do
createRadarArea(v.PosX, v.PosY, v.Width, v.Height, 255, 255, 255, 150)
for i,z in pairs(Zones) do
		ZoneInfo[z].Name = v.Name
end
end
end
addEventHandler("onResourceStart", g_root, ResourceStart)

So far this seems to be okay... but...

function GetStats(player)
local Zones = getElementsByType("radararea")
--[[>>> LINE 186 <<<< --]]for k,v in pairs(Zones) do
if(ZoneInfo[v].Name) then
outputChatBox("Zone name: " .. ZoneInfo[v].Name .. " Zone ID: " .. k, player)
end
end
end
addCommandHandler("stats", GetStats)

When I type the commad it gives a server error:

ERROR: ...s/server/mods/deathmatch/resources/lswars/lswars.lua:186: attempt to index field '?' (a nil value)

[50p]

You can't get that error message on this line, probably the next one. People should start to learn to debug scripts themselves.

getElementsByType returns indexed table of elements. These elements are not tables so ZoneInfo[v].Name is invalid!

1. ZoneInfo[ v ] == nil (it's nil because v is element ZoneInfo is (number) indexed table therefore it's invalid)

2. ZoneInfo[ v ].Name == nil (because ZoneInfo[ v ] == nil, you can't get elements out of nil)

3. v ~= table (v is not table, even v.Name will be invalid)

Solution:

if ( getElementData( v, "Name" ) then
-- your outputChatBox.... here
end