Modules and models

We have decided to wrap each of our model classes in a module, where
the module name is currently the same across all models and is the
name of the application. So, for example, we have:

module SpringBase
  class User < ActiveRecord::Base
        ...
        end
end

My reading suggests that I should site all model files in the
directory app/models/spring_base/ to, I hope, help Rails to find them
when I have code such as user=SpringBase::User.new in my controller
logic.

Is this the correct approach?

Thanks.

We want to namespace our code to avoid conflicts with any framework
code. For example, we had a method called 'changed' in our models
which clashed with an ActiveRecord-based rmethod of the same name and
this led to many hours of debugging.

My research suggests it is valid to namespace models and that one
should use the same approach as for namespacing controllers.