使用带有Play JSON的多个Write来呈现对象的不同视图

I am writing a Play 2.3 application that serves JSON backed by mongodb. Some of the documents coming from the database contain sensitive fields. I want to be able to work with these documents server side but send a limited JSON view to clients. The documentation on Reads/Writes combinators discusses defining implicit Reads and Writes which works fine for sending data to and from the database but does not completely fill my needs.I am writing a Play 2.3 application that serves