I just needed to do something similar with a messages model. What worked for me was applying the unique
method on the returned eloquent collection.
Model::where('toId', $id)
->orderBy('createdAt', 'desc')
->get()
->unique('fromId');
The query will return all messages ordered by createdAt
and the unique
method will reduce it down to one message for each fromId
. This is obviously not as performant as using the database directly, but in my case I have further restrictions on the query.
Also, there are many more useful methods for working with these collections: https://laravel.com/docs/5.2/collections#available-methods