Rails core - Jun 2012 - Can I make Rails update_attributes with nested form find existing records and add to collections instead of creating new ones?

Hi there, 

I''ve asked this question at stackoverflow.com
http://stackoverflow.com/questions/11257662/can-i-make-rails-update-attributes-with-nested-form-find-existing-records-and-ad

I haven''t seen a better answer than one I propose myself but
I''d like to
know if it''s possible to enhance accepts_nested_attribute_for to allow
a
find_or_create_by behavior for the one-to-many associated collection, 
instead of always creating new records.

Thanks!
Yuklai

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