Ordering a table by a value in it.

[.:HyPeX:.]

Hello guys, i want to order a table so that all the rows are in numerical order by the first value of each table. How to do this?

Example:

  
local luaTable = { 
{time="200", acc="crap", name="shit"}, 
{time="300", acc="crap2", name="crapy"}, 
{time="100", acc="crap5", name="shiity"} 
} 
  
local NewTable = orderTable(luaTable, 1} 
  
function orderTable(table,Pos) 
 for i,v in ipairs(luaTable) do 
  if table[i][pos] > table[i+1][pos] then 
  end 
 end 
end 
  
-- It would end something like this: 
  
NewTable = { 
{time="300", acc="crap2", name="crapy"}, 
{time="200", acc="crap", name="shit"}, 
{time="100", acc="crap5", name="shiity"} 
} 
  

the function is just a random wild guessing i'm doing, i've got no clue to what to do here.

Greetz

[Castillo]

You want to sort the table using the 'time' value? if so, use

table.sort 

[Anubhav]

You want to sort the table using the 'time' value? if so, use

table.sort 

i tested it but it give's me a error.

attempt to call field 'sort' ( a nil value )

[Sasu]

table.sort(luaTable,  
    function(a,b)  
        return ( tonumber( a["time"] ) or 0 ) < ( tonumber( b["time"] ) or 0 )  
    end 
) 

Edited November 16, 2014 by Guest

[Feche1320]

local luaTable =  
{ 
    { time = 200, acc="crap", name=":~"}, 
    { time = 300, acc="crap2", name="crapy"}, 
    { time = 100, acc="crap5", name="shiity"} 
} 
  
function orderTable() 
    local tablecache, bigger = luaTable, 0 
    luaTable = {} 
    for i = 1, #tablecache do 
        if tablecache[i].time > bigger then 
            table.insert(luaTable, 1, { time = tablecache[i].time, acc = tablecache[i].acc, name = tablecache[i].name }) 
            bigger = tablecache[i].time 
        else 
            table.insert(luaTable, { time = tablecache[i].time, acc = tablecache[i].acc, name = tablecache[i].name }) 
        end 
    end 
end 

BTW why are you storing time as a string?

[.:HyPeX:.]

No, i'll save it as a number. This number will be given by the race resource (getTimePassed or smth).

[Feche1320]

No, i'll save it as a number. This number will be given by the race resource (getTimePassed or smth).

Te pregunte porque lo guardas como un string, no que lo guardes como un string.

Sorry for spanish

[.:HyPeX:.]

No, i'll save it as a number. This number will be given by the race resource (getTimePassed or smth).

Te pregunte porque lo guardas como un string, no que lo guardes como un string.

Sorry for spanish

Ah, no idea lel, i was just randomly writing numbers down to give an example