Thanks for catching this! I want the code you add to be consistent with the generated scaffolding, and the generated scaffolding changed in a way that wasn’t caught by my automated testing, and I missed this in my review.

My goal is not just to be consistent within an individual controller, but across controllers. Accordingly, I’ve made changes so that the following is what you end up with at the end of the book:

./app/controllers/line_items_controller.rb:  skip_before_action :authorize, only: %i[ create ]
./app/controllers/line_items_controller.rb:  before_action :set_cart, only: %i[ create ]
./app/controllers/line_items_controller.rb:  before_action :set_line_item, only: %i[ show edit update destroy ]
./app/controllers/carts_controller.rb:  skip_before_action :authorize, only: %i[ create update destroy ]
./app/controllers/carts_controller.rb:  before_action :set_cart, only: %i[ show edit update destroy ]
./app/controllers/orders_controller.rb:  skip_before_action :authorize, only: %i[ new create ]
./app/controllers/orders_controller.rb:  before_action :set_cart, only: %i[ new create ]
./app/controllers/orders_controller.rb:  before_action :ensure_cart_isnt_empty, only: %i[ new ]
./app/controllers/orders_controller.rb:  before_action :set_order, only: %i[ show edit update destroy ]
./app/controllers/products_controller.rb:  before_action :set_product, only: %i[ show edit update destroy ]
./app/controllers/users_controller.rb:  before_action :set_user, only: %i[ show edit update destroy ]
./config/routes.rb:  resources :support_requests, only: %i[ index update ]