first(*args)
Instance Public methods
Returns the first record, or the first 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.first # => #<Pet id: 1, name: "Fancy-Fancy", person_id: 1> person.pets.first(2) # => [ # #<Pet id: 1, name: "Fancy-Fancy", person_id: 1>, # #<Pet id: 2, name: "Spook", person_id: 1> # ] another_person_without.pets # => [] another_person_without.pets.first # => nil another_person_without.pets.first(3) # => []
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