javascript - Sails.js Increment Attribute -

i'm using sails.js, , trying increment attribute in model 1 when function called. works , increments , return json value 1, never saves database, when make request later, value still 0.

function:

addvote: function (req, res, next) {      nomination.findone(req.param('id'), function foundnomination(err, nom) {       if(err) return next(err);        if(!nom) return next();        nomination.update(req.param('id'), {         votes: nom.votes++       })        return res.json({         votes : nom.votes       });      }); }, 

edit:

now weird. must scoping issue. when change code this, console outputs 0 1. if take out second console.log, outputs 1...

addvote: function (req, res, next) {     var newvotes = 0;      nomination.findone(req.param('id'), function foundnomination(err, nom) {       if(err) return next(err);       if(!nom) return next();        nom.votes++;       newvotes = nom.votes;       console.log(newvotes);     });      console.log(newvotes);      nomination.update(req.param('id'), {         votes: newvotes     }, function(err) {         if(err) return res.negotiate(err);          return res.json({             votes : newvotes         });     });  }, 

ahha! it's calling update function before findone. why, , how stop it?

i think have :

nom.votes++; //or nom.votes = nom.votes+1; nomination.update(req.param('id'),        {         votes: nom.votes       }).exec(function(err, itemupdated)       {          if(err)//error          {            //manage error           }          else          {             res.json({               votes : itemupdated.votes             });          }       }); 

all database access asynchronous have call exec method create update ect.. on model

in end have :

addvote: function (req, res, next) {     var newvotes = 0;      nomination.findone(req.param('id'), function foundnomination(err, nom) {     if (err)     {         return next(err);     }      nom.votes++;     newvotes = nom.votes;     console.log(newvotes);     nomination.update(req.param('id'), {         votes : newvotes     }, function (err)     {         if (err)         {             return res.negotiate(err);         }          return res.json({             votes : newvotes         });     }); }); },