dynamic_bound_text_field.coffee

App.DynamicBoundTextField = Ember.TextField.extend
  placeholderBinding: 'content.name'
  
  # Update the remote property's value when the value of
  # our text field changes
  _setRemoteValue:(->
    val = @get('value')
    @set("controller.data.#{@get('content.key')}", val) if val?
  ).observes('value')
  
  # Since we don't know the name of the property to
  # observe ahead of time, create the observer when
  # inserted into the DOM (we'll have the key then).
  didInsertElement: ->
    updateCurrentValue = =>
      currentValue = @get("controller.data.#{@get('content.key')}")
      console.log currentValue
      @set('value', currentValue) if currentValue?
    updateCurrentValue()
    @addObserver "controller.data.#{@get('content.key')}", updateCurrentValue