[eluser]TheFuzzy0ne[/eluser]
In my projects, I have the model pass back the results as an array, I assumed you would have done the same? As far as I know, there's no way to actually edit the resource that's returned from the database, so that's the only way to do it. I think you have two options. You can either have your model pass back the data you want in the format you want, or have it pass back the result object, and format it appropriately from within your controller method before passing it in to the view.
Please note the ampersand in my example. Without it, you won't be modifying the actual array like you need to.