Contents

module Lookbook
  module WithPreviewControllerConcern
    extend ActiveSupport::Concern

    def preview_controller
      @_preview_controller ||= begin
        # In order to get URL helpers working correctly in the preview,
        # the request needs to look like it's coming from the host app,
        # not the Lookbook engine. So we try to get the controller and action
        # for the root path and use that as the 'fake' request context instead.
        request_path = main_app.respond_to?(:root_path) ? main_app.root_path : "/"
        path_parameters = Rails.application.routes.recognize_path(request_path)

        preview_request = request.clone
        preview_request.path_parameters = path_parameters if path_parameters.present?

        controller = Engine.preview_controller.new
        controller.request = preview_request
        controller.response = response

        controller
      end
    end
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
lookbook-2.0.0	app/controllers/concerns/lookbook/with_preview_controller_concern.rb
lookbook-2.0.0.rc.3	app/controllers/concerns/lookbook/with_preview_controller_concern.rb
lookbook-2.0.0.rc.2	app/controllers/concerns/lookbook/with_preview_controller_concern.rb