Hugo Corbucci's Blog

This one is a fairly easy upgrade although it was a little hard to discover all the issues. The main work was around removing Inherited Resources.

Here are more detailed notes:

• All calls to .deliver become .deliver_now. Including in your tests and stubs. If you had any tests that depended on the code block to be executed, you have to call .deliver_now as method...

This upgrade was fairly easy. The thing that will potentially give you more work are tests around ajax requests.

Here are the few detailed notes:

• ActiveModels now includes a none scope by default. So if you have some none scope defined, just remove their definitions.
• The state machine gem has not been updated for Rails 4.1 yet. Rails 4.1 made private the around_validation method in ActiveModels. Since state machine uses this method to inject its own validations, you need an extension for it. I’ve created a file named config/initializers/state_machine.rb and added the following code:
  module StateMachine::Integrations::ActiveModel; public :around_validation; end
• CFRS is also possible in AJAX request. Because of this AJAX requests are checked against it as well as of Rails 4.1. Therefore, in your tests, get :whatever, :format => ‘js’ has to become xhr :get, :whatever, :format => :js

The upgrade itself is not that hard. The main thing is the change from models protected from mass-assignment to strong parameters in the controllers. The rest is fairly quick and simple.

Here are more detailed notes:

• Strong parameters: Use the gem in 3.2 and move any attr_accessible out of your models. Ensure you added the config.active_record.whitelist_attributes = false to your...