# File lib/active_model/validations/with.rb, line 81 def validates_with(*args, &block) options = args.extract_options! args.each do |klass| validator = klass.new(options, &block) validator.setup(self) if validator.respond_to?(:setup) if validator.respond_to?(:attributes) && !validator.attributes.empty? validator.attributes.each do |attribute| _validators[attribute.to_sym] << validator end else _validators[nil] << validator end validate(validator, options) end end