Contents

module ShadowForm
  VERSION = '0.0.1'
  class Core
    class << self
      def shadow_of(klass)
        form_config[:shadow_of] = klass
      end

      def validation(&block)
        form_config[:validation] = block
      end

      def give_name(new_name)
        form_config[:new_name] = new_name
      end

      def new(*args)
        form_class.new(*args)
      end

      private

      def form_class
        @form_class ||= (
          klass      = form_config[:shadow_of] || fail('[ShadowForm] missing shadow class')
          klass_name = form_config.fetch(:new_name, name)
          Class.new(klass).tap do |m_class|
            self.const_set('ShadowForm', m_class)
            m_class.class_eval("def self.name; \"#{klass_name}\"; end")
            m_class.class_eval(&form_config[:validation]) if form_config[:validation]
          end
        )
      end

      def form_config
        @form_config ||= {}
      end
    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
shadow_form-0.0.1	lib/shadow_form.rb