# Java like ear / Cache / Class in Ruby? **URL:** \ **Category:** Rails\ **Created:** [August 31, 2009, 2:33pm UTC](https://www.ruby-forum.com/t/java-like-ear-cache-class-in-ruby/174688 "2009-08-31T14:33:53Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Ritvvij](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/bbce88/32.png) [@Ritvvij](https://www.ruby-forum.com/u/Ritvvij)\ **Post date:** [August 31, 2009, 2:33pm UTC](https://www.ruby-forum.com/t/java-like-ear-cache-class-in-ruby/174688/1 "2009-08-31T14:33:53Z")
Hi, We are facing a very weird situation. We do not face the problem in our local but face it on the web service where we hosted. Seems like the kinda of issues we have in java where either code stayed in cache and not clearing even after server restart or ear deployment issues, etc. Our model is as follows. User can have one contact. The contact sometimes should have country and state mandatory. class User \< ActiveRecord::Base has\_one :contact, :as =\> :contactable class Contact \< ActiveRecord::Base belongs\_to :contactable, :polymorphic =\> true attr\_accessor :validate\_country, :validate\_state validates\_presence\_of :country, :if =\> “validate\_country” validates\_presence\_of :state, :if =\> “validate\_state” We are not calling @user.contact.validate\_country = true anywhere but when doing @user.save on creation, we get an effort that cannot find function validate\_country. We also tried some varieties of code. attr\_accessor “validate\_country”, “validate\_state” attr\_accessible :validate\_country, :validate\_state attr\_accessible “validate\_country”, “validate\_state” Can anything think of something? ---
**Author:** ![Ritvvij](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/bbce88/32.png) [@Ritvvij](https://www.ruby-forum.com/u/Ritvvij)\ **Post date:** [August 31, 2009, 3:24pm UTC](https://www.ruby-forum.com/t/java-like-ear-cache-class-in-ruby/174688/2 "2009-08-31T15:24:49Z")
Can someone please help us with this error? It’s blocking basic functionality of our application ---
**Author:** ![Ritvvij](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/bbce88/32.png) [@Ritvvij](https://www.ruby-forum.com/u/Ritvvij)\ **Post date:** [August 31, 2009, 9:06pm UTC](https://www.ruby-forum.com/t/java-like-ear-cache-class-in-ruby/174688/3 "2009-08-31T21:06:42Z")
Can someone please assist on this? ---
**Author:** ![Ritvvij](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/bbce88/32.png) [@Ritvvij](https://www.ruby-forum.com/u/Ritvvij)\ **Post date:** [September 1, 2009, 6:25pm UTC](https://www.ruby-forum.com/t/java-like-ear-cache-class-in-ruby/174688/4 "2009-09-01T18:25:38Z")
The :if clauses should be symbols, not strings. BTW, bumping a post twice in the space of an hour is a great way to get the group to ignore you. –Matt J. ---
**Author:** ![Ritvvij](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/bbce88/32.png) [@Ritvvij](https://www.ruby-forum.com/u/Ritvvij)\ **Post date:** [August 31, 2009, 3:40pm UTC](https://www.ruby-forum.com/t/java-like-ear-cache-class-in-ruby/174688/5 "2009-08-31T15:40:38Z")
The exact exception is undefined local variable or method `validate_country' for # /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.3/lib/active_record/ attribute_methods.rb:260:in`method\_missing’ /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active\_support/ callbacks.rb:180:in `evaluate_method' /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active_support/ callbacks.rb:180:in`evaluate\_method’ /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active\_support/ callbacks.rb:180:in `instance_eval' /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active_support/ callbacks.rb:180:in`evaluate\_method’ /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active\_support/ callbacks.rb:195:in `should_run_callback?' /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active_support/ callbacks.rb:180:in`all?’ /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active\_support/ callbacks.rb:195:in `each' /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active_support/ callbacks.rb:195:in`all?’ /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active\_support/ callbacks.rb:195:in `should_run_callback?' /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active_support/ callbacks.rb:166:in`call’ /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active\_support/ callbacks.rb:90:in `run' /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active_support/ callbacks.rb:90:in`each’ /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active\_support/ callbacks.rb:90:in `send' /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active_support/ callbacks.rb:90:in`run’ /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active\_support/ callbacks.rb:276:in `run_callbacks' /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.3/lib/active_record/ validations.rb:1029:in`valid\_without\_callbacks?’ /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.3/lib/active\_record/ callbacks.rb:315:in `valid?' /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.3/lib/active_record/ associations/association_proxy.rb:221:in`send’ /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.3/lib/active\_record/ associations/association\_proxy.rb:221:in `method_missing' /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.3/lib/active_record/ autosave_association.rb:249:in`association\_valid?’ /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.3/lib/active\_record/ autosave\_association.rb:229:in `validate_single_association' /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.3/lib/active_record/ autosave_association.rb:183:in`validate\_associated\_records\_for\_contact’ /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active\_support/ callbacks.rb:180:in `evaluate_method' /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active_support/ callbacks.rb:180:in`evaluate\_method’ /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active\_support/ callbacks.rb:180:in `instance_eval' /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active_support/ callbacks.rb:180:in`evaluate\_method’ /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active\_support/ callbacks.rb:166:in `call' /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active_support/ callbacks.rb:90:in`run’ /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active\_support/ callbacks.rb:90:in `each' /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active_support/ callbacks.rb:90:in`send’ /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active\_support/ callbacks.rb:90:in `run' /usr/lib/ruby/gems/1.8/gems/activesupport-2.3.3/lib/active_support/ callbacks.rb:276:in`run\_callbacks’ /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.3/lib/active\_record/ validations.rb:1029:in `valid_without_callbacks?' /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.3/lib/active_record/ callbacks.rb:315:in`valid?’ /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.3/lib/active\_record/ validations.rb:1008:in `save_without_dirty' /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.3/lib/active_record/ dirty.rb:79:in`save\_without\_transactions’ /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.3/lib/active\_record/ transactions.rb:229:in `send' /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.3/lib/active_record/ transactions.rb:229:in`with\_transaction\_returning\_status’ /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.3/lib/active\_record/ connection\_adapters/abstract/database\_statements.rb:136:in `transaction' /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.3/lib/active_record/ transactions.rb:182:in`transaction’ /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.3/lib/active\_record/ transactions.rb:228:in `with_transaction_returning_status' /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.3/lib/active_record/ transactions.rb:196:in`save’ /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.3/lib/active\_record/ transactions.rb:208:in `rollback_active_record_state!' /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.3/lib/active_record/ transactions.rb:196:in`save’ /home/viridian/rails\_apps/backstage/app/controllers/ users\_controller.rb:84:in `create’