hello.. i am currently trying to use :through to attach two of my models together using geokit. for some reason, i am running into a problem: ArgumentError: Unknown key(s): as i have two models, one that is geocoded, and one that belongs to that model. the models look like: ,----[ employer.rb ] | class Employer < ActiveRecord::Base | acts_as_mappable | before_validation_on_create :geocode_address | | has_many :internships | belongs_to :account | belongs_to :role | | private | def geocode_address | geo=GeoKit::Geocoders::MultiGeocoder.geocode(address1 + " " + city + " " + state + " " + zip) | errors.add(:address, "Could not Geocode address") if !geo.success | self.lat, self.lng = geo.lat,geo.lng if geo.success | end | | end `---- and an internship: ,----[ internship.rb ] | class Internship < ActiveRecord::Base | has_many :internship_categories | belongs_to :employer, :polymorphic => true | acts_as_mappable :through => :employer | end `---- it seems like there is an intermediary object in the docuements called ':locatable' that connects the the two together, but i just can't get how that is being called, or what i am supposed to do with it. no matter where i put it, i end up with this error: ArgumentError: Unknown key(s): as if i remove: ":as => :locatable" i end up with a problem in that the model doesn't have :lat or :lng, which makes me think that the :through is not working at all. please let me know how to attack this.. thanks!
on 2009-02-23 09:12
on 2009-02-23 20:12
I think your trouble here is with the polymorphic association. (Why do you need it - is there another model that has_one or has_many :internships :as => :employer?) Try either removing :polymorphic => true if you don't need it, or adding :as => :employer to the Employer's has_many :internships line. http://wiki.rubyonrails.org/rails/pages/Understand... On Sun, Feb 22, 2009 at 11:12 PM, Sergio R.
on 2009-02-24 17:34
thanks for your help! i am gonna have to look into this a little bit more to get my head around this.. thanks!