I can't read sqlite data in coffescript

Hello i try to read somethink from my sqlite in coffe.script when i wrote it JS it works well but now i got some problem

Coffee.script: I am new in coffeescript and i am wondering what am i doing wrong... Any tips guys ? :)

app.get('/indeks',
  (req, res)->
    tab = []
    i = 0
    db = new sqlite3.Database("xxx.sqlite3")
    tab = []
    i=0
    console.log("Jestem przed dbHandler")

    db.each("SELECT yyy FROM zzz", @dbHandler, @dbFinal

    dbHandler:(err, row)->
      console.log("I am in handler dbHandler")
      if err
        console.log("Error: " + err)
      else
        tab.push(row)
        console.log(row)  

    dbFinal:()->
      console.log("I am in dbFinal")
      console.log("Final: " + tab)
      console.log("Response")
      res.send(tab)
      db.close()
   )
)

Now code in JS:

app.get('/indeks', function (req, res, next) {

    var db = new sqlite3.Database("xxx");
    var tab = new Array();
    var i=0;


    function dbHandler(err, row){
        if (err) {
            console.log("Error: " + err);
        } else {
            tab.push(row);
            console.log(row);
        }
    }    

    function dbFinal(){
        console.log("Final: " + tab);
        console.log("Response");
        res.send(tab);
    }

    db.each("SELECT zzz FROM yyy", dbHandler, dbFinal);
    db.close();

});