It might be ORM problem

Hi,
   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.

Sadeesh,

a little hint from my side: It may be a better idea to post this on
railsforum.com or the workingwithrails.com forums. This mailing list
is more related to the development of the framework than providing
help.

Cheers,
- Clemens

Clemens,

thanks for your reply and suggestion.