rails order nil last

The code "rails order(nil).last" in Ruby performs the following steps:

1. It calls the "order" method on the ActiveRecord model, passing "nil" as the argument.
2. The "order" method is used to specify the order in which the records should be retrieved from the database.
3. The "nil" argument indicates that the records should be retrieved in the default order.
4. Finally, the "last" method is called on the result of the "order" method, retrieving the last record based on the default order.

I hope this explanation is helpful!