Question

I’ve added a resource route to my app using –

resources :cars

I’ve used scaffolding to do this

I’ve then changed the routes so the user can edit a car by using the following url – mydomain.com/CARNAME

match "/:car" =>"cars#edit", :as => :edit_car
match "/:car/thanks" =>"cars#thanks", :as => :thanks

My edit action looks like this –

def edit
  @car = Car.find_by_name(params[:car]) || not_found
end

My problem is that in the edit page (mydomain.com/CARNAME) renders a form like this –

<form accept-charset="UTF-8" action="/cars/2" class="edit_car" id="edit_car_2" method="post">

I want to hide the ID of the car I’d prefer it to look like this –

<form accept-charset="UTF-8" action="/cars/CARNAME" class="edit_car" id="edit_car_CARNAME" method="post">

My update action is like this at the moment –

def update
  @car = Car.find(params[:id]) #I'll have to change this to - Car.find_by_name(params[:name])
  if @car.update_attributes(params[:car])
      format.html { redirect_to(thanks_path(@car.name)) }
   else
      format.html { render action: "edit" }
   end
end

I’d also like the update action to redirect back to the edit action (mydomain.com/CARNAME) and continue to pass through any validation issues.

Answer 1

Try overriding the method to_param in your Car model:

class Car
  def to_param
    self.name
  end
end

The view should then render the url you’re expecting.