gistfile1.rb

require 'json'
require 'uri_template'
require 'scorched'

class Controller < Scorched::Controller
  include Scorched::Options('uri_templates')


  ##
  # Generate URI out of the template
  #
  def uri(name, **vars)
    paths =  request.breadcrumb[0..-2].map { |x| x[:path] }
    template = uri_templates[name] or URITemplate.new(name)
    url "#{paths.join}#{template.expand(vars)}"
  end

  class << self
    ##
    # Mount another controller under prefix
    #
    def mount(prefix, controller)
      controller.config[:auto_pass] = true if controller.is_a? Class and controller < Controller
      self << {pattern: prefix, target: controller}
    end

    ##
    # Define named URI template for the controller
    #
    def uri(name, template)
      template = URITemplate.new(template) unless template.is_a? URITemplate
      uri_templates << { name => template }
    end

    private
      def compile(pattern, match_to_end = false)
        pattern = uri_templates[pattern] || pattern
        if pattern.is_a? URITemplate then
          pattern
        else
          super(pattern, match_to_end)
        end
      end
  end
end