Example of my Project model.

gistfile1.coffee

App.Project = Em.Object.extend

  # Trying to optimize phase load times
	showPhases: false

	phases: (->
		if !@_children
			@set '_children', Em.A()
			childPhases = @get('childPhases')
			if childPhases
				childPhases.forEach( (phase) =>
					Ember.run.once(this, ->
						phase.active = (phase.active is '1') ? true : false
						@_children.addObject App.Phase.create(phase)
					)
				)

				Ember.run.next(this, ->
					@set('showPhases', true)
				)

		return @_children
	).property('_children', 'childPhases', 'showPhases')