distinct

distinct()

Instance Public methods

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">]

uniq

Links:

https://github.com/rails/rails/blob/553e61af007553788813f81963a7621c82fff65d/activerecord/lib/active_record/associations/collection_proxy.rb#L684

doc_ruby_on_rails

2025-01-10 15:47:30

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