ActiveModel Validations HelperMethods module HelperMethods Ruby on Rails 4.2.9 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 v4.1.16 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. Methods (defined here) # validates_absence_of # validates_acceptance_of # validates_confirmation_of # validates_exclusion_of # validates_format_of # validates_inclusion_of # validates_length_of # validates_numericality_of # validates_presence_of # validates_size_of Private methods (1) Implementation detail — not part of the public API. # _merge_attributes Used by Extendd by (1) ActiveModel::Validations Included by (1) ActiveModel::Validations
