brace.js

App.CompanyItemController = Ember.ObjectController.extend({
  openDeals: Ember.computed.filter('deals.@each.{status,value}', function(item){
    return item.get('state') !== 'lost';
  }),
  total: Ember.computed.sum("opendDealsValues"),
  dealTotals: App.computed.groupable('deals',function(deal){
     return deal.get('state'); 
  })
});