How to exclude an array of ids from query in Rails (using ActiveRecord)?

Question

I would like to perform an ActiveRecord query that returns all records except those records that have certain ids. The ids I would like excluded are stored in an array. So

Answer 1

Rails 4 solution:

ids_to_exclude = [1,2,3]
array_without_excluded_ids = Item.where.not(id: ids_to_exclude)