Accessing Backbone js model in javascript

Question

is it possible to access Backbone.js model's attribute or function in javascript? If possible how to do that??

My model :

var TimeZone = Backbone.Model.extend({
    defaults:{
        timeZoneID : 'EST5EDT',
        timeZoneShortForm : "ET",
        timeZoneLongForm : "Eastern Time",
     }
   });

Javascript

 getTimeZoneId :function(TimeZone)          
    {
           //here for given TimeZone model.. i have to acess the timeZoneID
    }

Now i have to access timeZoneID.. How it is possible?

Paul D. Waite · Accepted Answer · 2012-04-26 16:02:47Z

2

I presume you are trying to access an instance of TimeZone:

var timeZone = new TimeZone();
timeZone.get('timeZoneID');

http://documentcloud.github.com/backbone/#Model-get

edited Apr 26, 2012 at 16:02

Paul D. Waite

99.5k57 gold badges204 silver badges275 bronze badges

answered Apr 26, 2012 at 12:33

ponzao

21k3 gold badges44 silver badges58 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Jeevi Over a year ago

Hi, thanks for ur reply.. yes, the mistake is i was not passing the instance.. Thanks :)

fguillen Over a year ago

@Stupid karma is a good reward for people who work to help you, I recommend you "upvote" and/or "accept" the answers those have helped you.

Paul D. Waite · Accepted Answer · 2012-05-17 20:51:28Z

1

Note that Backbone.js is a JavaScript framework, so your Backbone model is JavaScript, just like your getTimeZoneId function.

Backbone.Model.extend() creates a model constructor function, with which you’re expected to create instances (e.g. var mymodel = new TimeZone();).

It’s not quite clear from your question whether you want to get the timeZoneID of a model instance, or the timeZoneID property from the defaults object of your TimeZone prototype model object.

If you’ve got an TimeZone instance called mymodel, you can get its timeZoneID like this:

 mymodel.get('timeZoneID');

However, you can’t (I don’t think) inspect the defaults object of TimeZone. Backbone.Model.extend() returns a function which doesn’t expose any of the properties of the object you pass to it.

edited May 17, 2012 at 20:51

answered Apr 26, 2012 at 12:41

Paul D. Waite

99.5k57 gold badges204 silver badges275 bronze badges

Comments

David Sulc · Accepted Answer · 2012-04-26 12:40:22Z

0

Like ponzano said, it seems you want the following:

getTimeZoneId :function(timeZone){
  return timeZone.get('timeZoneID');
}

Note however, that the timeZone function argument is lower case. Don't use the upper case, or you will mix it up with the model "class".

Of course, sine Backbone already define getters and setters, you might not need your extra function at all...

In addition, maybe you shouldn't have the var in front of the model definition so that it is part of the global namespace and accessible form everywhere within your application.

answered Apr 26, 2012 at 12:40

David Sulc

26k3 gold badges55 silver badges54 bronze badges

Collectives™ on Stack Overflow

Accessing Backbone js model in javascript

3 Answers 3

2 Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

2 Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related