Multiple requests in one TTURLRequestModel

I was using the facebook example code of three20 as a basis for a project, and I want to have two开发者_如何学编程 url requests in my TTURLRequestModel class, so that I will only use one TTListDataSource to render my objects..

For example, a url request for the post details...

and another url request for all the comments of the post..

You need to open up TT code and make your own modifications. I don't think it's supported. One solution I can think of is that you create two models and when model finishes you add cellItems in your datasource.