railtie.rb Ruby on Rails 5.1.2 railtie.rb activesupport/lib/active_support/railtie.rb on GitHub Last modified: 2017-07-12 08:38:53 -0700 Required Files active_support active_support/i18n_railtie active_support/core_ext/time/zones active_support/core_ext/date/calculations Namespace MODULE ActiveSupport MODULE ActiveSupport::Railtie::TZInfo CLASS ActiveSupport::Railtie