The Ruby Way For Grouping And Sorting An Array

I have an array of Rails ActiveRecord models in which I need to group by name and then sort by topic. For instance the initial array may look like this (hopefully formatting comes out correctly):

Name Topic News Politics Sports Soccer Finance Stocks Finance Bonds News World News Entertainment

I will need to display the list as follows:

Name Topic Finance Bonds                    Stocks News Entertainment                    Politics                    World Sports Soccer

As you can see, we only display the name on the first entry of that name. Sure, I can simply sort a one-dimensional array of these objects and place the logic into the presentation such that it checks if the name it is processing now differs from the last name. But that didn't see so clean. Is there a better Ruby way in doing this?