1_README.md

Accessing routes outside controllers

Accessing the router outside of the controller context can be a real pain especially if you need access to _url helpers. It is even more difficult if you want to pass the router as an argument to a method or class. We had come up with a few different solutions but so far this has been the most reliable.

Accessing the routes in a class

ENV['SOME_URL'] = 'http://my.url.com'

class MyClassThatHasAccessToRoutes
  include AppRoutes
end

my_class = MyClassThatHasAccessToRoutes.new
my_class.root_path # => '/'
my_class.root_url  # => 'http://my.url.com/'

Passing the router as an argument

ENV['SOME_URL'] = 'http://my.url.com'

class MyClassWithARouter
  def initialize router = AppRouter.new
    @router = router
  end
  
  def path
    @router.root_path
  end
  
  def url
    @router.root_url
  end
end

my_class = MyClassWithARouter.new
my_class.path # => '/'
my_class.url  # => 'http://my.url.com/'

app_router.rb

class AppRouter
  include AppRoutes
end

app_routes.rb

module AppRoutes
  extend ActiveSupport::Concern

  included do
    include Rails.application.routes.url_helpers
    default_url_options.merge!(
      host: app_uri.host,
      protocol: app_uri.scheme
    )
  end

  module ClassMethods
    def app_uri
      @app_uri ||= URI ENV.fetch('SOME_URL')
    end

    def app_uri= new_uri
      @app_uri = new_uri
    end
  end
end