About databasing system

[Rijat]

I wonder how databasing works in MTA.Without using sql base system,a piece of code can let you store informations.For example this one :

node = xmlLoadFile ("users.xml") 
  
  
function playerLogin (thePreviousAccount, theCurrentAccount, autoLogin) 
  if  not (isGuestAccount (getPlayerAccount (source))) then 
    local accountData = getAccountData (theCurrentAccount, "funmodev2-money") 
    if (accountData) then 
      local playerMoney = getAccountData (theCurrentAccount, "funmodev2-money") 
      local playerSkin = getAccountData (theCurrentAccount, "funmodev2-skin") 
      local playerX = getAccountData (theCurrentAccount, "funmodev2-x") 
      local playerY = getAccountData (theCurrentAccount, "funmodev2-y") 
      local playerZ = getAccountData (theCurrentAccount, "funmodev2-z") 
      local playerInt = getAccountData (theCurrentAccount, "funmodev2-int") 
      local playerDim = getAccountData (theCurrentAccount, "funmodev2-dim") 
      local playerWanted = getAccountData (theCurrentAccount, "funmodev2-wantedlevel") 
      local playerWeaponID = getAccountData (theCurrentAccount, "funmodev2-weaponID") 
      local playerWeaponAmmo = getAccountData (theCurrentAccount, "funmodev2-weaponAmmo") 
      spawnPlayer (source, playerX, playerY, playerZ +1, 0, playerSkin, playerInt, playerDim, spawnTeam) 
      setTimer (setPlayerTeam, 500, 1, source, spawnTeam) 
      setPlayerMoney (source, playerMoney) 
      setTimer (setPlayerWantedLevel, 500, 1, source, playerWanted) 
      setTimer (giveWeapon, 500, 1, source, playerWeaponID, playerWeaponAmmo, true) 
      setCameraTarget (source, source) 
      fadeCamera(source, true, 2.0) 
    else 
      spawnPlayer (source, 2000.55, 1526.25, 14.6171875, 0, math.random (0, 288), 0, 0, spawnTeam) 
      setTimer (setPlayerTeam, 500, 1, source, spawnTeam) 
      setPlayerMoney (source, 5000) 
      setCameraTarget (source, source) 
      fadeCamera(source, true, 2.0)  
    end    
  end 
end 
addEventHandler ("onPlayerLogin", getRootElement(), playerLogin) 
  
function onQuit (quitType, reason, responsibleElement) 
  if not (isGuestAccount (getPlayerAccount (source))) then 
    account = getPlayerAccount (source) 
    if (account) then 
      local x,y,z = getElementPosition (source) 
      setAccountData (account, "funmodev2-money", tostring (getPlayerMoney (source))) 
      setAccountData (account, "funmodev2-skin", tostring (getPedSkin (source))) 
      setAccountData (account, "funmodev2-x", x) 
      setAccountData (account, "funmodev2-y", y) 
      setAccountData (account, "funmodev2-z", z) 
      setAccountData (account, "funmodev2-int", getElementInterior (source)) 
      setAccountData (account, "funmodev2-dim", getElementDimension (source)) 
      setAccountData (account, "funmodev2-wantedlevel", getPlayerWantedLevel (source)) 
      setAccountData (account, "funmodev2-wantedID", getPedWeapon (source)) 
      setAccountData (account, "funmodev2-wantedAmmo", getPedTotalAmmo (source)) 
    end 
  end 
end 
addEventHandler ("onPlayerQuit", getRootElement(), onQuit) 
  
function onWasted(totalAmmo, killer, killerWeapon, bodypart, stealth) 
  if not( isGuestAccount (getPlayerAccount(source)) ) then 
    local theWeapon = getPedWeapon (source) 
    local weaponAmmo = getPedTotalAmmo (source) 
    fadeCamera (source, false) 
    setTimer (spawnPlayer, 1000, 1, source, 1607.35, 1816.54, 10.82, 0, getPedSkin (source), 0, 0, spawnTeam) 
    setTimer (setPlayerTeam, 1500, 1, source, spawnTeam) 
    setTimer (setCameraTarget, 1250, 1, source, source) 
    setTimer (fadeCamera, 2000, 1, source, true) 
    setTimer (giveWeapon, 2000, 1, source, theWeapon, weaponAmmo, true) 
  end 
end 
addEventHandler ("onPlayerWasted", getRootElement(), onWasted) 

it talks about "users.xml",but there's no file exists as users.xml.how does it keep the informations than?Sorry may be it's a funny question for experienced members but not for me as you see thanks..

[ReSe]

As i know it store information in SQL "internal.db" ^^

[FWCentral]

What you are using there is the built in MTA account system.

here's some functions you can use with the account system:

  
--Functions: 
addAccount 
getAccountName 
getPlayerAccount 
getAccountPlayer 
getAccounts 
removeAccount 
setAccountPassword 
getAccountData 
setAccountData 
logIn 
logOut 
getAllAccountData 
--Events: 
onPlayerLogin 
onPlayerLogout 
  

I might have missed some, all this can be found in the wiki at https://wiki.multitheftauto.com

All of the account functions are Server Side.

More info about account's here: https://wiki.multitheftauto.com/wiki/Account

if your making a script using account functions this is all your really need to know, i think SQLite is better for saving data but i still use the account functions for the players account.