instance method `last`

Ruby on Rails 5.2.8.1

Since v3.0.20

Available in: v3.0.20 v3.1.12 v3.2.22.5 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:

last(limit = nil)

Find the last record (or last N records if a parameter is supplied). If no order is defined it will order by primary key.

Person.last # returns the last object fetched by SELECT * FROM people
Person.where(["user_name = ?", user_name]).last
Person.order("created_on DESC").offset(5).last
Person.last(3) # returns the last three objects fetched by SELECT * FROM people.

Take note that in that last case, the results are sorted in ascending order:

[#<Person id:2>, #<Person id:3>, #<Person id:4>]

and not:

[#<Person id:4>, #<Person id:3>, #<Person id:2>]

Parameters

limit opt = nil

Source

# File activerecord/lib/active_record/relation/finder_methods.rb, line 150
    def last(limit = nil)
      return find_last(limit) if loaded? || has_limit_or_offset?

      result = ordered_relation.limit(limit)
      result = result.reverse_order!

      limit ? result.reverse : result.first
    end

Defined in activerecord/lib/active_record/relation/finder_methods.rb line 150 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::FinderMethods

Signature

Parameters