ActiveRecord FinderMethods module FinderMethods Ruby on Rails 4.1.16 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: … v3.0.20 v3.1.12 v3.2.22.5 v4.0.13 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 No documentation comment. Constants ActiveRecord::FinderMethods::ONE_AS_ONE Methods (defined here) # exists? # fifth # fifth! # find # find_by # find_by! # find_last # find_nth # find_nth_with_limit # find_one # find_some # find_take # find_with_ids # first # first! # forty_two # forty_two! # fourth # fourth! # last # last! # second # second! # take # take! # third # third! Private methods (6) Implementation detail — not part of the public API. # apply_join_dependency # construct_join_dependency # construct_relation_for_association_calculations # find_with_associations # limited_ids_for # using_limitable_reflections?