The polymorphic :locatable association implies a :locatable_type and
:locatable_id column. These columns reference a row in an arbitrary table
identified by :locatable_type so no join table is needed.
On Feb 7, 2010 11:02 PM, "Sean Six"
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:
This is an example from the geokit plugin which I am trying to
reproduce.
class Location < ActiveRecord::Base
belongs_to :locatable, :polymorphic => true
acts_as_mappable
end
class Company < ActiveRecord::Base
has_one :location, :as => :locatable # also works for belongs_to
associations
acts_as_mappable :through => :location
end
We see two separate models here. Now is there also a third model, like
some kind of join table? Also is there a locatable_id:integer and
locatable_type:string as well?
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