hi, I'm trying to use backbone for "everything" on the server side too, and got stuck with doing a proper validation. The problem is that backbone's validate method return a boolean, and the validation mechanics should be implemented inside of it, but with node these mechanics are asynchronous, thus the validate method returns before evaluating my code.
Here is a code sample that illustrates well my setup: Backbone.Model.extend({ validate: function(){ var result; Jobs._withCollection(function(err, collection){ collection.count(query, function(count){ result = count > 1 ? "Job already exist" : null; }); }) return result; } }) I might be able to improve this a little bit, but I'm not sure if this would work: function _validate(){ Jobs._withCollection(function(err, collection){ collection.count(query, function(count){ yield count > 1 ? "Job already exist" : null; }); }) } Backbone.Model.extend({ validate: function(){ return _validate.call(this); } }) Especially not for a bit more complex situations where I use async for example, and the return value is set in the last callback of async, like here (this is obviously wrong as res is null at return): Backbone.Model.extend({ validate: function(){ var res; async.parallel([ .. do stuff .. ], function(err, results){ res = results; }) return results; } }) Any ideas? Viktor close -- Job Board: http://jobs.nodejs.org/ Posting guidelines: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines You received this message because you are subscribed to the Google Groups "nodejs" group. To post to this group, send email to nodejs@googlegroups.com To unsubscribe from this group, send email to nodejs+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/nodejs?hl=en?hl=en