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GitHub User: tommygarces

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Hi,
Im pretty new to Rails, and Im using Cocoon.
I would like to know if instead of setting the association to 'people', I could somehow get an specific one, like Person.find(id) when using link_to_add_association

 = link_to_add_association 'add person', f, :people
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Got it working, great video! but how can I get the id of the record in a hidden field?