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ember.js - Ember computed properties in Coffeescript

I want to implement the following Javascript code in Coffeescript

App.ItemView = Ember.View.extend({
    classNameBindings: ['itemId'],
    itemId: function() {
        console.log(this.get('content'));
        return "item-%@".fmt(this.get('content.id'));
    }.property('content.id'),
    templateName: 'item'    
}); 

Here is what I have so far in coffeescript:

App.ItemView = Ember.View.extend(
    classNameBindings: ['itemId']

    itemId: ->
        console.log this.get('content')
        contentId = this.get('content.id')
        "item-#{contentId}");
    .property('content.id')

    templateName: 'item'    
)

I get:

Error: Parse error on line 11: Unexpected '.'

The issue seems to be with the dot in .property('content.id') . I dont know how this translates into Coffeescript. How can I properly implement this view in Coffeescript?

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by (71.8m points)

It's beeing a quite long time, but I think this should be written like this:

App.ItemView = Ember.View.extend(
  classNameBindings: ['itemId']

  itemId: (->
    console.log this.get('content')
    contentId = this.get('content.id')
    "item-#{contentId}");
  ).property('content.id')

  templateName: 'item'    
)

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