In this new post to the Debuggable blog, Tim Koschutki points out the method for using grouping in your CakePHP application's queries (specifically in the new Release 2).
Having promised it in the first post on how to do Group By in CakePHP I worked on an array() version for the group statement in Model::find() calls. So I implemented it.
His code shows the calls to find() the grouped information and accompanying unit test assertEquals calls to check that the results are correct. His examples show a few different ways to accomplish the same thing.