Rails - How to Move a PaperClip Model to Another Model

Rails 3 app with paperclip.

Given a Paperclip File Model, how can you move that paperclip File to different paperclip, 开发者_运维百科say image gallery? Which would have different processing rules etc?

Any ideas?

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I've just tried the following:

Given two models, with a picture attachment and their own Paperclip configurations, say: Gallery1 and Gallery2.

Given I had one object in Gallery1 with a picture already attached.

Make:

Gallery2.create(:picture => Gallery1.first.picture)

And it creates the picture properly resized with the constraints of Gallery2.