ruby on rails - 'Company' and 'Person': threat them similar... but gives problems when creating forms -

our company can have contract person , company.

so responsible 'party' of contract, can both person , company.

i have setup model where:

---

contract ------ person | -- company

class contract < activerecord::base belongs_to :party, :polymorphic => true end

class party < activerecord::base self.abstract_class = true has_many :contracts, :as => :party end

class organization < party end

class person < party end

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what want able have form "new contract" , in field "contract with" i'd have dropdown box of known people , companies.

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in end: i'm willing change model , ideas... behaviour should remain contract can closed both person , company. suggestion welcome!

you fill select values string containing both class , id (i.e. ), process in either model or controller.