instance method `distinct`

Ruby on Rails 4.1.16

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

Compare with:

distinct(value = true)

Specifies whether the records should be unique or not. For example:

User.select(:name)
# => Might return two records with the same name

User.select(:name).distinct
# => Returns 1 record per distinct name

User.select(:name).distinct.distinct(false)
# => You can also remove the uniqueness

Parameters

value opt = true

Source

# File activerecord/lib/active_record/relation/query_methods.rb, line 762
    def distinct(value = true)
      spawn.distinct!(value)
    end

Defined in activerecord/lib/active_record/relation/query_methods.rb line 762 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::QueryMethods

Signature

Parameters