Deep relational fetches would be very very helpfull though
Seconded. I'm still early on with a project where we're very close to replacing Waterline for this reason. I always thought ActiveRecord was one of the great strengths of Rails but unfortunately I'm finding Waterline to be the biggest weakness of Sails.
Deep relational fetches would be very very helpfull though, now you basically have to cobble up seperate async fetches to do more complex joins.