instance method
last
Ruby on Rails 4.1.16
Since v4.0.13Signature
last(*args)Returns the last record, or the last n records, from the collection. If the collection is empty, the first form returns nil, and the second form returns an empty array.
class Person < ActiveRecord::Base
has_many :pets
end
person.pets
# => [
# #<Pet id: 1, name: "Fancy-Fancy", person_id: 1>,
# #<Pet id: 2, name: "Spook", person_id: 1>,
# #<Pet id: 3, name: "Choo-Choo", person_id: 1>
# ]
person.pets.last # => #<Pet id: 3, name: "Choo-Choo", person_id: 1>
person.pets.last(2)
# => [
# #<Pet id: 2, name: "Spook", person_id: 1>,
# #<Pet id: 3, name: "Choo-Choo", person_id: 1>
# ]
another_person_without.pets # => []
another_person_without.pets.last # => nil
another_person_without.pets.last(3) # => []
Parameters
-
argsrest
Source
# File activerecord/lib/active_record/associations/collection_proxy.rb, line 225
def last(*args)
@association.last(*args)
end
Defined in activerecord/lib/active_record/associations/collection_proxy.rb line 225
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Defined in ActiveRecord::Associations::CollectionProxy