```ruby
module Spree
  module Core
    module ControllerHelpers
      module StrongParameters
        def permitted_attributes
          Spree::PermittedAttributes
        end

        delegate *Spree::PermittedAttributes::ATTRIBUTES,
                 :to => :permitted_attributes,
                 :prefix => :permitted

        def permitted_payment_attributes
          permitted_attributes.payment_attributes + [
            :source_attributes => permitted_source_attributes
          ]
        end

        def permitted_checkout_attributes
          permitted_attributes.checkout_attributes + [
            :bill_address_attributes => permitted_address_attributes,
            :ship_address_attributes => permitted_address_attributes,
            :payments_attributes => permitted_payment_attributes,
            :shipments_attributes => permitted_shipment_attributes
          ]
        end

        def permitted_order_attributes
          permitted_checkout_attributes + [
            :line_items_attributes => permitted_line_item_attributes
          ]
        end

        def permitted_product_attributes
          permitted_attributes.product_attributes + [
            :product_properties_attributes => permitted_product_properties_attributes
          ]
        end
      end
    end
  end
end
```

Add gift_message to the parameter whitelist
user
```ruby
module Spree
  module Core
    module ControllerHelpers
      module StrongParameters
        def permitted_attributes
          Spree::PermittedAttributes
        end

        delegate *Spree::PermittedAttributes::ATTRIBUTES,
                 :to => :permitted_attributes,
                 :prefix => :permitted

        def permitted_payment_attributes
          permitted_attributes.payment_attributes + [
            :source_attributes => permitted_source_attributes
          ]
        end

        def permitted_checkout_attributes
          permitted_attributes.checkout_attributes + [
            :bill_address_attributes => permitted_address_attributes,
            :ship_address_attributes => permitted_address_attributes,
            :payments_attributes => permitted_payment_attributes,
            :shipments_attributes => permitted_shipment_attributes
          ]
        end

        def permitted_order_attributes
          permitted_checkout_attributes + [
            :gift_message,
            {:line_items_attributes => permitted_line_item_attributes}
          ]
        end

        def permitted_product_attributes
          permitted_attributes.product_attributes + [
            :product_properties_attributes => permitted_product_properties_attributes
          ]
        end
      end
    end
  end
end
```
assistant