gistfile1.rb

module ActiveAdmin
  module Views
    class ActiveAdminForm
      class DeprecatedFormBufferSubstitute
        def initialize(form)
          @form = form
        end
        def << (value)
          @form.text_node value.html_safe
        end
      end
      def form_buffers
        warn "DEPRECATION WARNING: 'form_buffers' is no longer needed."
        @form_buffers ||= [DeprecatedFormBufferSubstitute.new(self)]
      end
    end
  end
end