action classes

actionclass.rb

module Resources
  class BaseAction
    attr_accessor :params

    def before
    end

    def after
    end

    def render
    end

    def request
      before
      render
      after
    end

    def self.request(params)
      action = new
      action.params = params
      action.request
    end
  end

  class Resources < BaseAction
    def before
      super
      authenticate
    end

    def authenticate
      raise "Inauthentic" if current_user.nil?
    end

    def current_user
      params[:user_id]
    end

    def scope
      raise "Put an active model in here"
    end

    Index = self

    class New < self
      def resource
        super.build
      end
    end

    class Create < self
      def resource
        super.build(params)
      end
    end

    class Show < self
      def scope
        super.find(params[:id])
      end

      def before
        super
        puts"Do something special with #{params.fetch(:id)}"
      end

      def render
        puts "Hello from user #{params.fetch(:id)}"
      end
    end

    class Edit < Show
    end

    class Destroy < Show
    end
  end

  class Posts < Resources
    def render
      puts "Rendering all the posts for #{current_user}"
    end

    class Show < self
    end
  end
end

# We'd actually pass a Request object into this.
Resources::Posts.request(user_id: 100)
Resources::Posts::Show.request(user_id: 100, id: 10)