sketch for Matt Wynne

sketch.rb

class Organization
  def to_param
    "42"
  end
  def saved?
    rand > 0.5
  end
end

class OrganizationResponder
  def success(org)
    puts "redirecting_to #{org_path org}"
  end
  def failure(org)
    puts "rendering error"
  end

  def org_path(org)
    "/organizations/#{org.to_param}"
  end
end

class OrganizationCreator
  def create_for(user, org_name, responder)
    # real creation logic here
    organization = Organization.new
    if organization.saved?
      responder.success(organization)
    else
      responder.failure(organization)
    end
  end
end

class OrganizationsController
  def create
    params = { organization: 'Hello' }
    creator = OrganizationCreator.new
    creator.create_for(current_user, params[:organization], OrganizationResponder.new)
  end
private
  def current_user
    Object.new
  end
end

controller = OrganizationsController.new
controller.create

sketch_moar_classes.rb

class Organization
  def to_param
    "42"
  end
  def saved?
    rand > 0.5
  end
end

class Renderer < Struct.new(:renderable)
  def respond
    puts "rendering #{renderable}"
  end
end

class Redirector < Struct.new(:path)
  def respond
    puts "redirecting_to #{path}"
  end
end

class OrganizationResponder
  def success(org)
    Redirector.new( "/organizations/#{org.to_param}" ).respond
  end
  def failure(org)
    Renderer.new(:error).respond
  end
end

class OrganizationCreator
  def create_for(user, org_name, responder)
    # real creation logic here
    organization = Organization.new
    if organization.saved?
      responder.success(organization)
    else
      responder.failure(organization)
    end
  end
end

class OrganizationsController
  def create
    params = { organization: 'Hello' }
    creator = OrganizationCreator.new
    creator.create_for(current_user, params[:organization], OrganizationResponder.new)
  end
private
  def current_user
    Object.new
  end
end

controller = OrganizationsController.new
controller.create