Adapt cancel redirect for better spree paypal express

app/controllers/checkout_controller.rb

@@ -141,12 +141,4 @@ class CheckoutController < Spree::CheckoutController
     render json: {path: main_app.paypal_payment_url(@order, :payment_method_id => payment_method.id)}, status: 200
     true
   end
-  
-  # Overriding to customize the cancel url
-  def order_opts_with_new_cancel_return_url(order, payment_method_id, stage)
-    opts = order_opts_without_new_cancel_return_url(order, payment_method_id, stage)
-    opts[:cancel_return_url] = main_app.checkout_url
-    opts
-  end
-  alias_method_chain :order_opts, :new_cancel_return_url
 end

app/controllers/spree/paypal_controller_decorator.rb

@@ -0,0 +1,6 @@
+Spree::PaypalController.class_eval do
+  def cancel
+    flash[:notice] = t('flash.cancel', :scope => 'paypal')
+    redirect_to main_app.checkout_path
+  end
+end

spec/controllers/checkout_controller_spec.rb

@@ -108,7 +108,7 @@ describe CheckoutController do
   end
 
   describe "Paypal routing" do
-    let(:payment_method) { create(:payment_method, type: "Spree::BillingIntegration::PaypalExpress") }
+    let(:payment_method) { create(:payment_method, type: "Spree::Gateway::PayPalExpress") }
     before do
       controller.stub(:current_distributor).and_return(distributor)
       controller.stub(:current_order_cycle).and_return(order_cycle)
@@ -121,10 +121,5 @@ describe CheckoutController do
       order.stub(:state).and_return "payment"
       spree_post :update, order: {payments_attributes: [{payment_method_id: payment_method.id}]}
     end
-
-    it "should override the cancel return url" do
-      controller.stub(:params).and_return({payment_method_id: payment_method.id})
-      controller.send(:order_opts, order, payment_method.id, 'payment')[:cancel_return_url].should == checkout_url
-    end
   end
 end

spec/controllers/spree/paypal_controller_spec.rb

@@ -0,0 +1,10 @@
+require 'spec_helper'
+
+module Spree
+  describe PaypalController do
+    it "should redirect back to checkout after cancel" do
+      spree_get :cancel
+      response.should redirect_to checkout_path
+    end
+  end
+end