Tweaking our paypal express plumbing further

app/controllers/shop/checkout_controller.rb

@@ -100,7 +100,7 @@ class Shop::CheckoutController < Spree::CheckoutController
        render :edit and return
     end
 
-    redirect_to(paypal_payment_order_checkout_url(@order, :payment_method_id => payment_method.id))
+    redirect_to(main_app.shop_paypal_payment_url(@order, :payment_method_id => payment_method.id))
     true
 
   end

config/routes.rb

@@ -13,6 +13,8 @@ Openfoodnetwork::Application.routes.draw do
     #end
     get '/checkout', :to => 'checkout#edit' , :as => :checkout
     put '/checkout', :to => 'checkout#update' , :as => :update_checkout
+
+    get "/checkout/paypal_payment", to: 'checkout#paypal_payment', as: :paypal_payment
   end
 
   resources :enterprises do