# might be ORM problem

**URL:** <https://discuss.rubyonrails.org/t/might-be-orm-problem/31752>\
**Category:** rubyonrails-talk\
**Created:** [July 12, 2008, 9:20am UTC](https://discuss.rubyonrails.org/t/might-be-orm-problem/31752 "2008-07-12T09:20:18Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![sadathiru](https://avatars.discourse-cdn.com/v4/letter/s/ce7236/32.png) [@sadathiru](https://discuss.rubyonrails.org/u/sadathiru)\
**Post date:** [July 12, 2008, 9:20am UTC](https://discuss.rubyonrails.org/t/might-be-orm-problem/31752/1 "2008-07-12T09:20:18Z")

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Hi, &nbsp;&nbsp;&nbsp;I have a model user.rb, a controller userdata\_controller, methods in the controller and respective .rhtml files. I created a registration page. Saved into users table and it works fine. But sometimes its throwing error as

undefined method `city=' for #\<User \>

c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/active\_record/ attribute\_methods.rb:251:in `method_missing' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/active_record/ base.rb:2361:in `send' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/active\_record/ base.rb:2361:in `attributes=' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/active_record/ base.rb:2360:in `each' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/active\_record/ base.rb:2360:in `attributes=' c:/ruby/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/active_record/ base.rb:2130:in `initialize' app/controllers/matrimony\_controller.rb:124:in `new' app/controllers/matrimony_controller.rb:124:in `useraccount' -e:2:in `load' -e:2

It assumes that there is no field 'city' in table users. I confused a lot. It is never working until i restart my mongrel. I am not able to predict, when the problem rises.

Any idea? Help me..

Thanks, -Sadeesh kumar.