Flattener.cs

public class CaseSnapshotFlattener : ICaseSnapshotFlattener
    {
        private readonly IProjectionRunner _runner;

        public CaseSnapshotFlattener(IProjectionRunner runner)
        {
            _runner = runner;
        }

        public IDictionary<string, object> ToJson(CaseSnapshot model)
        {
            var node = new DictionaryMediaNode();
            _runner.Run(new CaseSnapshotProjection(), model, node);

            return node.Values;
        }
    }

Projection.cs

public class CaseSnapshotProjection : Projection<CaseSnapshot>
    {
        public CaseSnapshotProjection()
            : base(DisplayFormatting.UseDisplayFormatting)
        {
            Value(x => x.Id);
            Value(x => x.ScheduledTime);
            Value(x => x.IsAddOn).FormattedBy(listValue => listValue.Value == AddOnList.Yes);

            Value(x => x.Cancelled).FormattedBy(x => x.IsTrue);

            ForAttribute("Title").Use(context =>
            {
                var lookup = context.Service<UserLookup>();
                var lastName = lookup.PersonFor(context.Subject.Surgeon1.Value).LastName;
                return "{0}, {1}".ToFormat(lastName, context.Subject.ScheduledTime.Value.ToString("hhmm"));
            });

            ForAttribute("ShortTitle").Use(context => "{0}, {1}".ToFormat(
                context.Subject.ScheduledTime.Value.ToString("hhmm"),
                context.Subject.CaseCode));

            Value(x => x.Id).Name("url").WriteUrlFor(guid => new ViewCaseSnapshot{
                Id = guid
            });

            Value(x => x.Id).Name("mobileUrl").WriteUrlFor(id => new MobileViewCaseSnapshot{
                Id = id
            });

            ForAttribute("Timestamps").Use(context => TimestampJson.ToJson(context.Subject.Data));
        }
    }