sr.coffee

ServiceRequest = Backbone.Model.extend
  initialize: (attrs) ->
    # Is there a simple way to extract this pseudo-model functionality
    # into a superclass?
    _.bindAll @, 'set_line_items',
    @bind('change', @set_line_items)
    @set_line_items()

  set_line_items: ->
    if(@attributes.line_items and not(@line_items instanceof LineItemList))
      @line_items = new LineItemList(new LineItem(li) for li in @attributes.line_items)
      @line_items.bind 'change', => @trigger 'change'
      # more line item events bound here.