class ActiveRecord::Associations::CollectionProxy
def last(limit = nil)
another_person_without.pets.last # => nil
another_person_without.pets # => []
# ]
# #
# #
# => [
person.pets.last(2)
person.pets.last # => #
# ]
# #
# #
# #
# => [
person.pets
end
has_many :pets
class Person < ActiveRecord::Base
form returns an empty array.
If the collection is empty, the first form returns +nil+, and the second
Returns the last record, or the last +n+ records, from the collection.
def last(limit = nil) load_target if find_from_target? super end