Starting to rework login behaviour when hitting /admin

app/controllers/checkout_controller.rb

@@ -26,7 +26,11 @@ class CheckoutController < Spree::CheckoutController
         if @order.next
           state_callback(:after)
         else
-          flash[:error] = @order.errors.full_messages.to_sentence
+          unless @order.errors.empty?
+            flash[:error] = @order.errors.full_messages.to_sentence
+          else
+            flash[:error] = t(:payment_processing_failed)
+          end
           update_failed
           return
         end

app/controllers/spree/admin/base_controller_decorator.rb

@@ -11,4 +11,4 @@ Spree::Admin::BaseController.class_eval do
     authorize! :admin, record
     authorize! action, record
   end
-end
+end

app/controllers/spree/admin/overview_controller_decorator.rb

@@ -4,4 +4,17 @@ Spree::Admin::OverviewController.class_eval do
     @product_count = Spree::Product.active.managed_by(spree_current_user).count
     @order_cycle_count = OrderCycle.active.managed_by(spree_current_user).count
   end
-end
+
+  # This is in Spree::Core::ControllerHelpers::Auth
+  # But you can't easily reopen modules in Ruby
+  def unauthorized
+    if try_spree_current_user
+      flash[:error] = t(:authorization_failure)
+      redirect_to '/unauthorized'
+    else
+      store_location
+      url = respond_to?(:spree_login_path) ? spree_login_path : root_path
+      redirect_to url
+    end
+  end
+end

config/routes.rb

@@ -1,6 +1,8 @@
 Openfoodnetwork::Application.routes.draw do
   root :to => 'home#index'
 
+  get "/#/login", to: "home#index", as: :spree_login
+
   resource :shop, controller: "shop" do
     get :products
     post :order_cycle