Rails - Jun 2006 - Best practice for params key names for mapping to models

What''s the best practice for naming keys in the params array so they
map
most efficiently to models?

There isn''t an equivelent of ActiveRecord for mapping params keys to 
models, so I''m wondering if there is a best practice.

I''m writing an addressbook with a form that has mixed models on it and 
multiple one-to-many relations.  I''m processing new records in the 
create method and updating records in the update method.  I''d like to 
have one method to handle both create and update (an attempt to dry up 
my code).

I''m using my own naming convention in params for new records, the model
name with "new_" appended.  I''m thinking how I might be able
to right
this all-in-one method (both create and update method).  My hunch is 
that a proper naming scheme for the params keys would make it easier.

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