Simple way of arrays

gistfile1.txt

  App.ArrayTransform = DS.Transform.extend({
    deserialize: function(serialized) {
      return serialized;
    },
    serialize: function(deserialized) {
      return deserialized;
    }
  });
  
  var attr = DS.attr;
  App.Requirement = DS.Model.extend({
    name: attr('string'),
    optionsArray: attr('array')
  });