Undefined method updated? for <model object>

rubyonrails-talk
1

Hi, I have two model say-

ZipCode < ActiveRecord::Base belongs_to :state_provinces end

StateProvince < ActiveRecord::Base has_many :zip_codes end

if I do @zip_code.update_atribute(:city, “My City”) its giving Undefined method updated? for StateProvince

if I remove belongs_to specifier in ZipCode class then it work fine. Any alternate solution??

Thanks

2

Could you provide the error trace?

Cheers, Nicholas