Mysql Connection Error.

[ironimust]

Hello, my English may be bad.

Anyway the problem is that the mysql script I use for my roleplay server is not working.

mysql works fine on mta 1.5 server, but it does not work on mta 1.6 server, can you help me?



function connectToDatabase(res)
    MySQLConnection = mysql_connect(hostname, username, password, database, port)   -- *[*This is the line of code that throws the error*]*
    
    if (not MySQLConnection) then
        if (res == getThisResource()) then
            cancelEvent(true, "Cannot connect to the database.")
        end
        return nil
    end
    
    return nil
end
addEventHandler("onResourceStart", getResourceRootElement(getThisResource()), connectToDatabase, false)

[Burak5312]

I think the mysql_connect function may not work properly anymore because it belongs to the old mysql module, it is very old, now try using dbConnect 

 

[ironimust]

1 hour ago, Burak5312 said:

I think the mysql_connect function may not work properly anymore because it belongs to the old mysql module, it is very old, now try using dbConnect 

 

I don't know much. Can you make this code compatible with dbConnect or can you post a working mysql connection script?

[Burak5312]

1 hour ago, ironimust said:

I don't know much. Can you make this code compatible with dbConnect or can you post a working mysql connection script?

can you show the code and also show the error you got let's see what we can do

Edited June 24, 2023 by Burak5312

[klue]

@ironimust

 

local connection;
local credentials = {
	dbname = "-",
	
	host = "-",
	port = "3306",

	charset = "utf8",

	username = "-",
	password = "-",

	multi_statements = "1"
};

addEventHandler("onResourceStart", getResourceRootElement(),
	function ()
		if isElement(connection) then
			print(" Error occured - Connection already exists!");
			return false;
		end

		connection = dbConnect("mysql", "dbname=" .. credentials.dbname .. ";host=" .. credentials.host .. ";port=" .. credentials.port .. ";charset=" .. credentials.charset, credentials.username, credentials.password, "autoreconnect=1;multi_statements=" .. credentials.multi_statements);
		if not connection then
			print(" Error occured - Failed to connect!");
			return false;
		else
			print(" Database connected! (" .. credentials.dbname .. ")");
		end
	end);

 

Edited June 25, 2023 by klue
fix.

[ironimust]

14 hours ago, Burak5312 said:

can you show the code and also show the error you got let's see what we can do

MySQLConnection = mysql_connect(hostname, username, password, database, port) 

error code line.

[ironimust]

6 hours ago, klue said:

@ironimust

 

local connection;
local credentials = {
	dbname = "-",
	
	host = "-",
	port = "3306",

	charset = "utf8",

	username = "-",
	password = "-",

	multi_statements = "1"
};

addEventHandler("onResourceStart", getResourceRootElement(),
	function ()
		if isElement(connection) then
			print(" Error occured - Connection already exists!");
			return false;
		end

		connection = dbConnect("mysql", "dbname=" .. credentials.dbname .. ";host=" .. credentials.host .. ";port=" .. credentials.port .. ";charset=" .. credentials.charset, credentials.username, credentials.password, "autoreconnect=1;multi_statements=" .. credentials.multi_statements);
		if not connection then
			print(" Error occured - Failed to connect!");
			return false;
		else
			print(" Database connected! (" .. credentials.dbname .. ")");
		end
	end);

 

I am trying.

[ironimust]

8 hours ago, klue said:

@ironimust

 

local connection;
local credentials = {
	dbname = "-",
	
	host = "-",
	port = "3306",

	charset = "utf8",

	username = "-",
	password = "-",

	multi_statements = "1"
};

addEventHandler("onResourceStart", getResourceRootElement(),
	function ()
		if isElement(connection) then
			print(" Error occured - Connection already exists!");
			return false;
		end

		connection = dbConnect("mysql", "dbname=" .. credentials.dbname .. ";host=" .. credentials.host .. ";port=" .. credentials.port .. ";charset=" .. credentials.charset, credentials.username, credentials.password, "autoreconnect=1;multi_statements=" .. credentials.multi_statements);
		if not connection then
			print(" Error occured - Failed to connect!");
			return false;
		else
			print(" Database connected! (" .. credentials.dbname .. ")");
		end
	end);

 

not succesful

[ZeDni]

local hostname = "127.0.0.1"
local username = "root"
local password = ""
local database = "Database Name"
local port = "3306"

local gMySQLCon = nil

function connectToDatabase(res)

	gMySQLCon = dbConnect("mysql", "dbname=" .. database .. ";host=" .. hostname, username, password)
	
	if (not gMySQLCon) then
		cancelEvent(true, "[Error]: Database could not be connected!")
		return
	end
	
	outputServerLog("[Done]: Database connected!")

end
addEventHandler("onResourceStart", getResourceRootElement(), connectToDatabase, false)

function getMySQLC()
	return gMySQLCon
end

Try This Code. @ironimust

Edited June 25, 2023 by ZeDni

[ironimust]

5 minutes ago, ZeDni said:

local hostname = "127.0.0.1"
local username = "root"
local password = ""
local database = "Database Name"
local port = "3306"

local gMySQLCon = nil

function connectToDatabase(res)

	gMySQLCon = dbConnect("mysql", "dbname=" .. database .. ";host=" .. hostname, username, password)
	
	if (not gMySQLCon) then
		cancelEvent(true, "[Error]: Database could not be connected!")
		return
	end
	
	outputServerLog("[Done]: Database connected!")

end
addEventHandler("onResourceStart", getResourceRootElement(), connectToDatabase, false)

function getMySQLC()
	return gMySQLCon
end

Try This Code. @ironimust

mtaserver.conf Did I enable module <module src="mta_mysql.dll" />

mysql running

[Burak5312]

4 hours ago, ironimust said:

not succesful

Can you give us the error written in debugscript so that we can help you? or tell what is not working

Edited June 25, 2023 by Burak5312

[Prever77]

local con = dbConnect("mysql","dbname=<database name>;host=127.0.0.1","login","password","share=1")


addEventHandler("onResourceStart",resourceRoot,check)
local function check()
  if con then
    outputServerLog("[database] connected with server")
    dbQuery(con,'SET NAMES utf8;')
  else
    outputServerLog("[database] can't find connection point")
  end
end

function set(x)
  if x then
    dbExec(con,x)
  end
 end

function get(y)
  if y then
    local rawtab = dbQuery(con,y)
    local tab = dbPoll(rawtab,200)
    return tab
  end 
end

Now XML file

<meta>
  <script src="sside.lua" />
  <export function="set" type="server" />
  <export function="get" type="server" />
</meta>

I did not tested it. But it should work. But remember that you need to call functions get() and set() with exports like: 

function thatDoSomething()
  if something then
    exports['x-x']:get('your php code') --use this if your resource have a special characters or--
    exports.xx.get() --this for resource without specialcharacters
    --ofc xx is name of your resource
  end
end

 

Edited June 25, 2023 by Prever77
Little mistake.

[ironimust]

I answer a little late, this problem is modules that are not installed. ı fixed