Ruby on Rails v3.1.0
presence.rb
activemodel/lib/active_model/validations/presence.rb
on GitHub
Last modified: Wed Aug 31 02:24:41 +0000 2011
Required Files
active_support/core_ext/object/blank
Classes and Modules
MODULE
ActiveModel
MODULE
ActiveModel::Validations
MODULE
ActiveModel::Validations::HelperMethods
CLASS
ActiveModel::Validations::PresenceValidator