Question

I am testing some code in my web console (using coffescript)

@user = new Onethingaday.Models.User()
@user.url= "/users/#{current_user.get('nickname')}.json?id_type=nickname"
@user.fetch()
console.log(@user)
console.log(@user.get("facebook_id"))

The console.log(@user) line shows the following:

However, console.log(@user.get("facebook_id")) shows undefined.

I see that user has the facebook_id attribute. How do I retrieve the value of it?

Answer 1

This looks like a timing issue, albeit an odd one. fetch is asynchronous; you need to wait until its success callback is called before trying to access any attributes.

Try this:

@user.fetch success: =>
  console.log(@user)
  console.log(@user.get("facebook_id"))

It’s confusing that the first console.log would show user.attributes.facebook_id existing and the second wouldn’t, but console.log is itself asynchronous in Webkit’s implementation, so what’s going on is that the @user.get call is being resolved immediately (synchronously), whereas the object inspection in the first console.log is resolving later—after the fetch completed.