inherite and cast

[optimum-dulopin]

Hi

first thanks for this gem, very usefull but im faced to a problem here my models

    class ads < ActiveRecord::Base
      attr_accessible : category_id, title, text, :ad_detail_attributes
      has_one :ad_detail, :dependent => :destroy
      accepts_nested_attributes_for :ad_detail, allow_destroy: true
    ...
    end

    class AdDetail < ActiveRecord::Base
      attr_accessible :ad_id
      acts_as_superclass

      belongs_to :ad
    end

    class AdDetailsRealEstate < ActiveRecord::Base
      attr_accessible :nb_rooms, :is_furnished, ...
      inherits_from :AdDetail, :methods => true, :dependent => :destroy
    end

    AdDetailsCar < ActiveRecord::Base
      attr_accessible :color, :brand, ...
      inherits_from :AdDetail, :methods => true, :dependent => :destroy
    end

when Im trying to do

    a = Ad.first
    a.ad_detail = AdDetailCar.new()

then I have this error

    ActiveRecord::AssociationTypeMismatch: AdDetail(#33224200) expected, got AdDetailsCar(#30212560)

what is more strange is that it I do this,

    xx = AdDetailCar.new(annonce_id => 1, :color => ...)

    a = Ad.first

then I can access to ad.ad_detail without anyproblem.

Do I do anything bad ?

PS : another question, I install your gem with Gemfile, and the version I get is not the same than on github and have some small bugs for instance in inputs/base/collection.rb

    def send_or_call_or_object(duck, object)
      return object if object.is_a?(String) # TODO what about other classes etc?
      send_or_call(duck, object)
    end

whereas it should be according to github

    def send_or_call_or_object(duck, object)
      return object if object.is_a?(String) || object.is_a?(Integer)  # TODO what about other classes etc?
      send_or_call(duck, object)
    end

this is oly bug I found, many there are other. Im quite new in RoR, it there a way to directly have the good version on Gemfile ?

thanks