Problem with "Add" with Table with no ID column

I've got a table in my schema which doesn't have an ID column. Here's the migration -

==== START OF CUT OF MIGRATION ========================== class CreateCountries < ActiveRecord::Migration   def self.up     create_table(:countries, :id => false, :options => ' IN SFPS001') do |t|       # t.column :name, :string       t.column :country_code, :string, :null => false, :limit => 2       t.column :country_name, :string, :null => false, :limit => 50     end   end

  def self.down     drop_table :countries   end end ==== END OF CUT OF MIGRATION ============================

Here's the model definition -

==== START OF CUT OF MODEL ============================== class Country < ActiveRecord::Base

  set_primary_key :country_code   has_many :trip_leg_passengers, :as => :country_passport   has_many :airports

  validates_presence_of :country_code, :country_name   validates_uniqueness_of :country_code   validates_uniqueness_of :country_name end ==== END OF CUT OF MODEL ================================

Using the formats in the usual RoR book from Prag Progs, I've got the list, show and edit functionality working. However the "Add" function is not working giving the following error dump -

==== START OF CUT OF ERROR OUTPUT ======================== NoMethodError in Country#new

Showing app/views/country/_form.rhtml where line #5 raised:

undefined method `country_code_before_type_cast' for #<Country:0xb7414228>

Extracted source (around line #5):

2: 3: <!--[form:country]--> 4: <p><label for="country_country_code">Country code</label><br/> 5: <%= text_field 'country', 'country_code' %></p> 6: 7: <p><label for="country_country_name">Country name</label><br/> 8: <%= text_field 'country', 'country_name' %></p>

Trace of template inclusion: /app/views/country/new.rhtml

RAILS_ROOT: script/../config/.. Application Trace | Framework Trace | Full Trace

/usr/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/base.rb:178 9:in `normal_method_missing' /usr/lib/ruby/gems/1.8/gems/dr_nic_magic_models-0.7.1/lib/base.rb:46:in `method_missing' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/helpers/form_he lper.rb:340:in `value_before_type_cast' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/helpers/form_he lper.rb:253:in `to_input_field_tag' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/helpers/form_he lper.rb:160:in `text_field' #{RAILS_ROOT}/app/views/country/_form.rhtml:5:in `_run_rhtml_country__form' #{RAILS_ROOT}/app/views/country/new.rhtml:4:in `_run_rhtml_country_new'

/usr/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/base.rb:178 9:in `normal_method_missing' /usr/lib/ruby/gems/1.8/gems/dr_nic_magic_models-0.7.1/lib/base.rb:46:in `method_missing' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/helpers/form_he lper.rb:340:in `value_before_type_cast' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/helpers/form_he lper.rb:253:in `to_input_field_tag' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/helpers/form_he lper.rb:160:in `text_field' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:316:in `compile_and_render_template' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:292:in `render_template' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:251:in `render_file' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:266:in `render' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/partials.rb:59: in `render_partial' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/benchmark ing.rb:29:in `benchmark' /usr/lib/ruby/1.8/benchmark.rb:293:in `measure' /usr/lib/ruby/1.8/benchmark.rb:307:in `realtime' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/benchmark ing.rb:29:in `benchmark' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/partials.rb:58: in `render_partial' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:278:in `render' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:316:in `compile_and_render_template' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:292:in `render_template' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:251:in `render_file' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/base.rb:7 26:in `render_file' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/base.rb:6 48:in `render_with_no_layout' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/layout.rb :245:in `render_without_benchmark' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/benchmark ing.rb:53:in `render' /usr/lib/ruby/1.8/benchmark.rb:293:in `measure' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/benchmark ing.rb:53:in `render' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/base.rb:9 42:in `perform_action_without_filters' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/filters.r b:368:in `perform_action_without_benchmark' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/benchmark ing.rb:69:in `perform_action_without_rescue' /usr/lib/ruby/1.8/benchmark.rb:293:in `measure' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/benchmark ing.rb:69:in `perform_action_without_rescue' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/rescue.rb :82:in `perform_action' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/base.rb:4 08:in `process_without_filters' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/filters.r b:377:in `process_without_session_management_support' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/session_m anagement.rb:117:in `process' /usr/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/dispatcher.rb:38:in `dispatch' /usr/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/webrick_server.rb:115:in `handle_dispatch' /usr/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/webrick_server.rb:81:in `service' /usr/lib/ruby/1.8/webrick/httpserver.rb:104:in `service' /usr/lib/ruby/1.8/webrick/httpserver.rb:65:in `run' /usr/lib/ruby/1.8/webrick/server.rb:173:in `start_thread' /usr/lib/ruby/1.8/webrick/server.rb:162:in `start_thread' /usr/lib/ruby/1.8/webrick/server.rb:95:in `start' /usr/lib/ruby/1.8/webrick/server.rb:92:in `start' /usr/lib/ruby/1.8/webrick/server.rb:23:in `start' /usr/lib/ruby/1.8/webrick/server.rb:82:in `start' /usr/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/webrick_server.rb:67:in `dispatch' /usr/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/commands/servers/webrick.rb:59 /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require' /usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/dependenc ies.rb:147:in `require' /usr/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/commands/server.rb:30 /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require' /usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/dependenci es.rb:147:in `require' script/server:3

/usr/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/base.rb:178 9:in `normal_method_missing' /usr/lib/ruby/gems/1.8/gems/dr_nic_magic_models-0.7.1/lib/base.rb:46:in `method_missing' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/helpers/form_he lper.rb:340:in `value_before_type_cast' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/helpers/form_he lper.rb:253:in `to_input_field_tag' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/helpers/form_he lper.rb:160:in `text_field' #{RAILS_ROOT}/app/views/country/_form.rhtml:5:in `_run_rhtml_country__form' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:316:in `compile_and_render_template' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:292:in `render_template' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:251:in `render_file' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:266:in `render' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/partials.rb:59: in `render_partial' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/benchmark ing.rb:29:in `benchmark' /usr/lib/ruby/1.8/benchmark.rb:293:in `measure' /usr/lib/ruby/1.8/benchmark.rb:307:in `realtime' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/benchmark ing.rb:29:in `benchmark' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/partials.rb:58: in `render_partial' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:278:in `render' #{RAILS_ROOT}/app/views/country/new.rhtml:4:in `_run_rhtml_country_new' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:316:in `compile_and_render_template' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:292:in `render_template' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_view/base.rb:251:in `render_file' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/base.rb:7 26:in `render_file' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/base.rb:6 48:in `render_with_no_layout' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/layout.rb :245:in `render_without_benchmark' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/benchmark ing.rb:53:in `render' /usr/lib/ruby/1.8/benchmark.rb:293:in `measure' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/benchmark ing.rb:53:in `render' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/base.rb:9 42:in `perform_action_without_filters' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/filters.r b:368:in `perform_action_without_benchmark' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/benchmark ing.rb:69:in `perform_action_without_rescue' /usr/lib/ruby/1.8/benchmark.rb:293:in `measure' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/benchmark ing.rb:69:in `perform_action_without_rescue' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/rescue.rb :82:in `perform_action' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/base.rb:4 08:in `process_without_filters' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/filters.r b:377:in `process_without_session_management_support' /usr/lib/ruby/gems/1.8/gems/actionpack-1.12.5/lib/action_controller/session_m anagement.rb:117:in `process' /usr/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/dispatcher.rb:38:in `dispatch' /usr/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/webrick_server.rb:115:in `handle_dispatch' /usr/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/webrick_server.rb:81:in `service' /usr/lib/ruby/1.8/webrick/httpserver.rb:104:in `service' /usr/lib/ruby/1.8/webrick/httpserver.rb:65:in `run' /usr/lib/ruby/1.8/webrick/server.rb:173:in `start_thread' /usr/lib/ruby/1.8/webrick/server.rb:162:in `start_thread' /usr/lib/ruby/1.8/webrick/server.rb:95:in `start' /usr/lib/ruby/1.8/webrick/server.rb:92:in `start' /usr/lib/ruby/1.8/webrick/server.rb:23:in `start' /usr/lib/ruby/1.8/webrick/server.rb:82:in `start' /usr/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/webrick_server.rb:67:in `dispatch' /usr/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/commands/servers/webrick.rb:59 /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require' /usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/dependenc ies.rb:147:in `require' /usr/lib/ruby/gems/1.8/gems/rails-1.1.6/lib/commands/server.rb:30 /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in `require' /usr/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/dependenci es.rb:147:in `require' script/server:3

Request

Parameters: None

Show session dump