ruby on rails - How to I pass a object ID saved in one view to another view? -

i using rails build app follows. want create load multiple stops. have class load "has_many :stops". once load structure created save load , take user new stop view. how take load id created in last click , pass on stop? here have in new stop.

<%= label_tag :load_id %><br /> <%= number_field_tag :load_id %> 

create nested resource, load_id in url: /loads/:load_id/stops/new.

in load model:

class load < activerecord::base   has_many :stops end 

routes:

resources :loads   resources :stops end 

controller stops:

class stopscontroller < applicationcontroller   # /loads/:load_id/stops/new   def new     load = load.find(params[:load_id])     @stop = load.stops.build   end   # post /loads/:load_id/stops   def create     load = load.find(params[:load_id])     @stop = load.stops.create(params[:stop])     if @stop.save       format.html { redirect_to([@stop.post, @stop], :notice => 'stop created.') }     else       format.html { render :action => "new" }     end   end end 

extracted here:

http://blog.8thcolor.com/2011/08/nested-resources-with-independent-views-in-ruby-on-rails/