Node.js + mongoose [RangeError: Maximum call stack size exceeded]

I am new to Node and im facing an error : [RangeError: Maximum call stack size exceeded]

im not able able to solve the problem because most of the stack problems in others stackoverflow questions about node deals with hundreds of callback but i have only 3 here,

first a fetch (findbyid) then an update an later a save operation !

my code is :

app.post('/poker/tables/:id/join', function(req,res){
 var id = req.params.id;
 
 models.Table.findById(id, function (err, table) {
     if(err) { console.log(err); res.send( { message: 'error' }); return; }
 
     if(table.players.length >= table.maxPlayers ) {
         res.send( { message: "error: Can't join ! the Table is full" });
         return; 
     }
     console.log('Table isnt Full');
 
     var BuyIn = table.minBuyIn;
     if(req.user.money < table.maxPlayers ) {
         res.send( { message: "error: Can't join ! Tou have not enough money" });
         return; 
     }
     console.log('User has enought money');
 
     models.User.update({_id:req.user._id},{ $inc:{ money : -BuyIn }}, function(err, numAffected) {
         if(err) { console.log(err); res.send( { message: 'error: Cant update your account' }); return; }
         console.log('User money updated');
 
 
         table.players.push( {userId: req.user._id, username: req.user.username, chips:BuyIn, cards:{}} );
 
 
         table.save(function (err) {
             if(err) { console.log(err); res.send( { message: 'error' });return; }           
 
             console.log('Table Successfully saved with new player!');
             res.send( { message: 'success', table: table});
 
         });
     });
 
 })});
 

The error occurs during the save operation at the end !

I use MongoDb with mongoose so 'Table' and 'User' are my database collections.

This is from my first project with nodejs,expressjs and mongodb so i probably have made huge mistakes in the async code :(

thx for your help !

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EDIT: i tried to replace the save with an update :

models.Table.update({_id: table._id}, { '$push': { players : {userId: req.user._id, username: req.user.username, chips:BuyIn, cards:{}} } }, function(err,numAffected) {
 
                 if(err) { console.log(err); res.send( { message: 'error' });return; }           
 
                 console.log('Table Successfully saved with new player!');
                 res.send( { message: 'success', table: table});
 
 
             });
 

But it doesnt help the error is still coming and i dont know how to debug it :/

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Last edit: i post the answer here because iam new to this site and it doesnt want me to answer due to the spam protection probably ( or i would have to wait 4 hours and i prefer not !)

I finally got it !

In fact i created another mongoose schema and model for the player witch is an embedded document in the table document but trying to save it directly as an object didnt worked i had to create a specific model instance for the player first and then add it to the table doc so my code is now

... update user money ... then 
 
 var player = new models.Player({userId: req.user._id, username: req.user.username, chips:BuyIn, cards:{}});
 
     models.Table.update({_id: this._id}, { '$push': { 'players' : player } }, function(err,numAffected) {
         if(err) { console.log(err); res.send( { message: 'error during update', error: err });return; }         
 
         this.players.push( {userId: req.user._id, username: req.user.username, chips:BuyIn, cards:{}} );
         res.send( { message: 'success', table: this});
 
         }.bind(this));
 

I dont really know why mongoose send me a stack size error due to this but it solved the problem !!!

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