ActiveRecord AttributeMethods Read ClassMethods module ClassMethods Ruby on Rails 3.2.22.5 Since v3.0.20 Last seen in v4.2.9 Available in: v3.0.20 v3.1.12 v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 Compare with: … v3.0.20 v3.1.12 v4.0.13 v4.1.16 v4.2.9 No documentation comment. Methods (defined here) # cache_attribute? # cache_attributes # cached_attributes # define_method_attribute # undefine_attribute_methods Private methods (5) Implementation detail — not part of the public API. # attribute_cast_code # cacheable_column? # define_external_attribute_method # external_attribute_access_code # internal_attribute_access_code