instance method distinct

Ruby on Rails 7.0.10

Since v4.0.13

Available in: v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Signature

distinct(value = true)

Specifies whether the records should be unique or not.

class Person < ActiveRecord::Base
  has_many :pets
end

person.pets.select(:name)
# => [
#      #<Pet name: "Fancy-Fancy">,
#      #<Pet name: "Fancy-Fancy">
#    ]

person.pets.select(:name).distinct
# => [#<Pet name: "Fancy-Fancy">]

person.pets.select(:name).distinct.distinct(false)
# => [
#      #<Pet name: "Fancy-Fancy">,
#      #<Pet name: "Fancy-Fancy">
#    ]
Source
# File activerecord/lib/active_record/associations/collection_proxy.rb, line 695
      

Defined in activerecord/lib/active_record/associations/collection_proxy.rb line 695 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::Associations::CollectionProxy

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