Saving text to files!

[Colandus]

Hello, have you ever made your own command or any other kind of script and you wanted to save some information in a text file?

Okay, here we go; your dream has just became true! :thumbup:
Code for saving to files:

local saveFile = {folder="logs/", filename="saves.txt", saveLog=true, linesMax=1000} 

if (saveFile.saveLog == true) then 
    local lines = 0 
    for _ in io.lines(saveFile.folder .. saveFile.filename) do 
        lines = lines+1 
    end 
    local file = io.open(saveFile.folder .. saveFile.filename, (lines < linesMax-1 and "a") or "w") 
    file:write("[" .. os.date("%Y-%m-%d %H:%M:%S") .. "] HERE GOES TEXT\n") 
    file:close() 
end

This script saves the text "HERE GOES THE TEXT" BUT it also reset the whole file when it reach 1000 lines :blink:
If you don't want that:

local saveFile = {folder="logs/", filename="saves.txt", saveLog=true} 

if (saveFile.saveLog == true) then 
    local file = io.open(saveFile.folder .. saveFile.filename, "a") 
    file:write("[" .. os.date("%Y-%m-%d %H:%M:%S") .. "] HERE GOES TEXT\n") 
    file:close() 
end

And keep \n there, it makes the newline, otherwise it will all come like "[date here] TEXT GOES HERE[date here] TEXT GOES HERE[date here] TEXT GOES HERE[date here] TEXT GOES HERE" and you don't want that to happen, huh?

Also, if the file doesn't exist it will be created!


The "write modes" for io.open() is:

"r" read mode (the default);
"w" write mode;
"a" append mode;
"r+" update mode, all previous data is preserved;
"w+" update mode, all previous data is erased;
"a+" append update mode, previous data is preserved, writing is only allowed at the end of file.

That's for io.open("file", "a")


And a simple fileExists function:

function fileExists(filename) 
    file=io.open(filename, "r") 
    return (file == nil and 0) or file:close() and 1
end

Returns 1 if file exists, and 0 if not exists.

if fileExists(filename) == 1 then
    ...
end

An other version:

function fileExists(filename) 
    file=io.open(filename, "r") 
    return (file ~= nil and file:close())
end

Returns true if file exists, and false if not exists.

if fileExists(filename) then
    ...
end

The date formats:

%a abbreviated weekday name (e.g., Wed)
%A full weekday name (e.g., Wednesday)
%b abbreviated month name (e.g., Sep)
%B full month name (e.g., September)
%c date and time (e.g., 09/16/98 23:48:10)
%d day of the month (16) [01-31]
%H hour, using a 24-hour clock (23) [00-23]
%I hour, using a 12-hour clock (11) [01-12]
%M minute (48) [00-59]
%m month (09) [01-12]
%p either "am" or "pm" (pm)
%S second (10) [00-61]
%w weekday (3) [0-6 = Sunday-Saturday]
%x date (e.g., 09/16/98)
%X time (e.g., 23:48:10)
%Y full year (1998)
%y two-digit year (98) [00-99]
%% the character `%´

Gimme rep if you like/will use it

Regards,
Colandus

 

[Jonern]

Nice!
os.date("%Y-%m-%d %H:%M:%S") was new to me, was only used to "*t"

 

[Master-m]

Thanks for posting it here + some extra things

 

[habiba]

very nice thanks

 

[Boy67]

Nice, rep for you

 

[Colandus]

I had this comment:

brilliant, btw can you pm how to know whether a gm summons a monster or not, i would really like to know how to do this as i dont want any of my gm's summoning monsters to any players.

But I can't see the names unfortunately, so who wrote it? ^.-

 

[Boy67]

It was me, would that be possible?

 

[Colandus]

It was me, would that be possible?

I think, but I'm not sure if it can tell which monster :/

Just make a talkaction called the same as that command (e.g. /m) and make so it ONLY writes to the file

 

[Boy67]

yeh, good idea. Or i will just remove the summon monster command out of commands.xml. Why didnt i think of this earlier. Lol. Ty anyway.

 

[Markey]

is it possible to allow every words?
something like <talkaction words="*" script="log"/>

 

[STiX]

@Boy67: Why don't you enable command logs for your GM's. Then it will outprint ALL of the commands they have used. All you need to then do is go 'ctrl + f' and search for the term '/m'.

The logs are presented like this:

[09/03/2008 19:28] /goto ned
[09/03/2008 19:28] /goto kakan
[09/03/2008 19:28] /goto frodo
[09/03/2008 19:28] /goto bill
[09/03/2008 19:28] /goto spider
[09/03/2008 19:29] /c spider
[09/03/2008 19:29] /c orshabaal
[09/03/2008 19:29] /c demon
[09/03/2008 19:30] /goto player
[09/03/2008 19:30] /goto wolf
[09/03/2008 19:31] /goto demon
[09/03/2008 19:31] /c grapes
[10/03/2008 17:00] /c demon

 

[x0r]

Rep+
A good contribute to the OTLand community.

 

[Clary]

at last i can save commands log i had many commands but they wasn't saved,
ty for posting it here in Otland.

 

[Clary]

Sorry for double posting but i wanted to bump it up to post prob i am facing

I can't understand how should i add it to a command.
add it for this for example:
+

bool Commands::ghost(Creature* creature, const std::string& cmd, const std::string& param)
{
	Player* player = creature->getPlayer();
	if(player)
	{
		player->ghostMode = !player->ghostMode;
		char buffer[60];
		sprintf(buffer, "You have switched ghost mode mode to: %s.", (player->ghostMode ? "enabled" : "disabled"));
		player->sendTextMessage(MSG_INFO_DESCR, buffer);
		return true;
	}
	return false;
}

 

[Colandus]

This is Lua, that's C++...

 

[Clary]

oh, ty alot also then useful as well gonna try adding it and i will till u.

hmm couldn't add it

function onSay(cid, words, param)
if getPlayerGroupId(cid) > 4 then
doSetItemOutfit(cid, 2701, 60000)
else
            doPlayerSendCancel(cid, "Only Gamemasters may change his look to a tree.")
    end
end

 

[Colandus]

function onSay(cid, words, param)
    if getPlayerGroupId(cid) > 4 then
        doSetItemOutfit(cid, 2701, 60000)
        local file = io.open(saveFile.folder .. saveFile.filename, "a")  
        file:write("[" .. os.date("%Y-%m-%d %H:%M:%S") .. "] HERE GOES TEXT\n")  
        file:close()  
    else
        doPlayerSendCancel(cid, "Only Gamemasters may change his look to a tree.")
    end
end

 

[Darkshadows]

I get an error telling me "attempt to index global 'io' <a nil value>

I need to edit a file saying this...
guilds = {['guild 1'] = 0, ['guild 2'] = 1, ['guild 3'] = 3}
and all i need to do is add more to it...
guilds = {['guild 1'] = 0, ['guild 2'] = 1, ['guild 3'] = 3, ['guild 4'] = 4}

how do i make it remove the last "}" and then add the ", ['guild 4'] = 4}"

and why is "io" not working?

 

[Colandus]

You have old server... What distro you use?

 

[Darkshadows]

Aires 0.4.0 ;(