How to get the latest record from each group in ActiveRecord?

Question

In my Ruby on Rails application I have a database structure like this:

Project.create(:group => \"1\", :date => \"2014-01-01\")
Project.create(:group =         


        

Answer 1

Project.where(:group => "1", :date => "2014-01-01").last

.last is what you are looking for.