TFS 0.X SOLUTION "attempt to call field 'getResult' (a nil value)"

[Svira]

Hello, I decided to come back to the tfs 0.4 fun
I was struggling a few days with the error in the topic, saw hundreds of posts from 2010 to 2020 WITHOUT a solution!

I decided to add a solution here, maybe I'll have this problem again someday, so it's worth writing it down somewhere!

Error:

[0:29:54.796] [Error - TalkAction Interface]
[0:29:54.796] data/talkactions/scripts/frags.luanSay
[0:29:54.796] Description:
[0:29:54.796] data/talkactions/scripts/frags.lua:14: attempt to call field 'getResult' (a nil value)
[0:29:54.796] stack traceback:
[0:29:54.796] data/talkactions/scripts/frags.lua:14: in function <data/talkactions/scripts/frags.lua:6>

Solution:
Add in data/lib/004-database.lua

if(result == nil) then
    print("> WARNING: Couldn't load database lib.")
    return
end

Result = createClass(nil)
Result:setAttributes({
    id = -1,
    query = ""
})

function Result:getID()
    return self.id
end

function Result:setID(_id)
    self.id = _id
end

function Result:getQuery()
    return self.query
end

function Result:setQuery(_query)
    self.query = _query
end

function Result:create(_query)
    self:setQuery(_query)
    local _id = db.storeQuery(self:getQuery())
    if(_id) then
        self:setID(_id)
    end

    return self:getID()
end

function Result:getRows(free)
    local free = free or false
    if(self:getID() == -1) then
        error("[Result:getRows] Result not set!")
    end

    local c = 0
    repeat
        c = c + 1
    until not self:next()

    local _query = self:getQuery()
    self:free()
    if(not free) then
        self:create(_query)
    end

    return c
end

function Result:getDataInt(s)
    if(self:getID() == -1) then
        error("[Result:getDataInt] Result not set!")
    end

    return result.getDataInt(self:getID(), s)
end

function Result:getDataLong(s)
    if(self:getID() == -1) then
        error("[Result:getDataLong] Result not set!")
    end

    return result.getDataLong(self:getID(), s)
end

function Result:getDataString(s)
    if(self:getID() == -1) then
        error("[Result:getDataString] Result not set!")
    end

    return result.getDataString(self:getID(), s)
end

function Result:getDataStream(s)
    if(self:getID() == -1) then
        error("[Result:getDataStream] Result not set!")
    end

    return result.getDataStream(self:getID(), s)
end

function Result:next()
    if(self:getID() == -1) then
        error("[Result:next] Result not set!")
    end

    return result.next(self:getID())
end

function Result:free()
    if(self:getID() == -1) then
        error("[Result:free] Result not set!")
    end

    self:setQuery("")
    local ret = result.free(self:getID())
    self:setID(-1)
    return ret
end

Result.numRows = Result.getRows
function db.getResult(query)
    if(type(query) ~= 'string') then
        return nil
    end

    local ret = Result:new()
    ret:create(query)
    return ret
end

and in data/craturescripts/scripts/login.lua:

local config = {
    loginMessage = getConfigValue('loginMessage'),
    useFragHandler = getBooleanFromString(getConfigValue('useFragHandler'))
}

Thx and have fun!

 

[StreamSide]

what about posting the real code lol

 

[Svira]

what about posting the real code lol

what code are you talking about? frags.lua? 004-DATABASE.LUA?
why do you need it, the error in the subject occurs in many positive situations.

I DON'T FINALLY KNOW WHAT YOU'RE ABOUT: d

 

[StreamSide]

what code are you talking about? frags.lua? 004-DATABASE.LUA?
why do you need it, the error in the subject occurs in many positive situations.

I DON'T FINALLY KNOW WHAT YOU'RE ABOUT: d

so as you can read here: Reading console errors (https://otland.net/threads/reading-console-errors.273723/)
the console error is related to the file called frags.lua, I'm sorry if you didnt understood my earlier post.

 

[Svira]

so as you can read here: Reading console errors (https://otland.net/threads/reading-console-errors.273723/)
the console error is related to the file called frags.lua, I'm sorry if you didnt understood my earlier post.

the error occurs wherever you use the function. The flame error was the first one I had at hand of the most searched.

 

[Evil Puncker]

this error shouldn't ever happen if you use a "complete" 0.4 distribution...

the error "attempt to call field 'ANYTHING' (a nil value)" is in 99% of the cases because the function doesn't exist...

if you used a complete distro it would not happen because the getResult function would be exactly where it should...

same with the login.lua part, it should be there by default...

and if your datapack is lacking these things, I can assume there will be many other things missing as well...

 

[Svira]

this error shouldn't ever happen if you use a "complete" 0.4 distribution...

the error "attempt to call field 'ANYTHING' (a nil value)" is in 99% of the cases because the function doesn't exist...

if you used a complete distro it would not happen because the getResult function would be exactly where it should...

same with the login.lua part, it should be there by default...

and if your datapack is lacking these things, I can assume there will be many other things missing as well...

I had a rev 3777 fire, original date and this error appears. There was no effective solution eiec publishes the ones that solved my problem.

 

[ofek75]

what i should do to fix "attempt to call field 'createMonsterType' (a nil value)"?

 

[Gesior.pl]

what i should do to fix "attempt to call field 'createMonsterType' (a nil value)"?

Get new engine (TFS 1.4+ or otservbr) that has functions to declare monsters in Lua (not .xml like in old servers).