# Problem with Log-In functionality in Rails 2.0.2

**URL:** <https://www.ruby-forum.com/t/problem-with-log-in-functionality-in-rails-2-0-2/124809>\
**Category:** Rails\
**Created:** [January 2, 2008, 8:19pm UTC](https://www.ruby-forum.com/t/problem-with-log-in-functionality-in-rails-2-0-2/124809 "2008-01-02T20:19:11Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![myowntribe](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/a88e4f/32.png) [@myowntribe](https://www.ruby-forum.com/u/myowntribe)\
**Post date:** [January 2, 2008, 8:19pm UTC](https://www.ruby-forum.com/t/problem-with-log-in-functionality-in-rails-2-0-2/124809/1 "2008-01-02T20:19:11Z")

</div>

Hi,

I am facing problem with the Login functionality after upgrading to  
Rails 2.0.2

When I login, I get a No Method Error:

NoMethodError in LoginController#login

You have a nil object when you didn’t expect it!  
You might have expected an instance of ActiveRecord::Base.  
The error occurred while evaluating nil.[]=

RAILS\_ROOT: E:/InstantRails-1.6-win/InstantRails/rails\_apps/lala  
Application Trace | Framework Trace | Full Trace

app/controllers/login\_controller.rb:174:in `login’

E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action\_controller/base.rb:1158:in  
`send' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:1158:in`perform\_action\_without\_filters’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action\_controller/filters.rb:697:in  
`call_filters' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/filters.rb:689:in`perform\_action\_without\_benchmark’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action\_controller/benchmarking.rb:68:in  
`perform_action_without_rescue' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/1.8/benchmark.rb:293:in`measure’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action\_controller/benchmarking.rb:68:in  
`perform_action_without_rescue' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/rescue.rb:199:in`perform\_action\_without\_caching’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action\_controller/caching.rb:678:in  
`perform_action' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/connection_adapters/abstract/query_cache.rb:33:in`cache’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active\_record/query\_cache.rb:8:in  
`cache' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/caching.rb:677:in`perform\_action’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action\_controller/base.rb:524:in  
`send' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:524:in`process\_without\_filters’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action\_controller/filters.rb:685:in  
`process_without_session_management_support' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/session_management.rb:123:in`process’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action\_controller/base.rb:388:in  
`process' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:171:in`handle\_request’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action\_controller/dispatcher.rb:115:in  
`dispatch' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:126:in`dispatch\_cgi’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action\_controller/dispatcher.rb:9:in  
`dispatch' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel/rails.rb:76:in`process’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel/rails.rb:74:in  
`synchronize' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel/rails.rb:74:in`process’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel.rb:159:in  
`process_client' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel.rb:158:in`each’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel.rb:158:in  
`process_client' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel.rb:285:in`run’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel.rb:285:in  
`initialize' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel.rb:285:in`new’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel.rb:285:in  
`run' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel.rb:268:in`initialize’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel.rb:268:in  
`new' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel.rb:268:in`run’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel/configurator.rb:282:in  
`run' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel/configurator.rb:281:in`each’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel/configurator.rb:281:in  
`run' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/bin/mongrel_rails:128:in`run’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel/command.rb:212:in  
`run' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/bin/mongrel_rails:281 E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:489:in`load’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active\_support/dependencies.rb:489:in  
`load' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:342:in`new\_constants\_in’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active\_support/dependencies.rb:489:in  
`load' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/servers/mongrel.rb:64 E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in`gem\_original\_require’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:27:in  
`require' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:496:in`require’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active\_support/dependencies.rb:342:in  
`new_constants_in' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:496:in`require’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:39  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:27:in  
`gem_original_require' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in`require’  
script/server:3

app/controllers/login\_controller.rb:174:in `login' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:1158:in`send’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action\_controller/base.rb:1158:in  
`perform_action_without_filters' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/filters.rb:697:in`call\_filters’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action\_controller/filters.rb:689:in  
`perform_action_without_benchmark' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/benchmarking.rb:68:in`perform\_action\_without\_rescue’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/1.8/benchmark.rb:293:in  
`measure' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/benchmarking.rb:68:in`perform\_action\_without\_rescue’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action\_controller/rescue.rb:199:in  
`perform_action_without_caching' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/caching.rb:678:in`perform\_action’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active\_record/connection\_adapters/abstract/query\_cache.rb:33:in  
`cache' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/query_cache.rb:8:in`cache’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action\_controller/caching.rb:677:in  
`perform_action' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:524:in`send’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action\_controller/base.rb:524:in  
`process_without_filters' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/filters.rb:685:in`process\_without\_session\_management\_support’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action\_controller/session\_management.rb:123:in  
`process' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/base.rb:388:in`process’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action\_controller/dispatcher.rb:171:in  
`handle_request' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:115:in`dispatch’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action\_controller/dispatcher.rb:126:in  
`dispatch_cgi' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/dispatcher.rb:9:in`dispatch’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel/rails.rb:76:in  
`process' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel/rails.rb:74:in`synchronize’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel/rails.rb:74:in  
`process' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel.rb:159:in`process\_client’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel.rb:158:in  
`each' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel.rb:158:in`process\_client’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel.rb:285:in  
`run' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel.rb:285:in`initialize’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel.rb:285:in  
`new' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel.rb:285:in`run’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel.rb:268:in  
`initialize' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel.rb:268:in`new’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel.rb:268:in  
`run' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel/configurator.rb:282:in`run’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel/configurator.rb:281:in  
`each' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel/configurator.rb:281:in`run’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/bin/mongrel\_rails:128:in  
`run' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/lib/mongrel/command.rb:212:in`run’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.3-x86-mswin32/bin/mongrel\_rails:281  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active\_support/dependencies.rb:489:in  
`load' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:489:in`load’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active\_support/dependencies.rb:342:in  
`new_constants_in' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:489:in`load’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/servers/mongrel.rb:64  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:27:in  
`gem_original_require' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in`require’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active\_support/dependencies.rb:496:in  
`require' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/dependencies.rb:342:in`new\_constants\_in’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active\_support/dependencies.rb:496:in  
`require' E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:39 E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in`gem\_original\_require’  
E:/InstantRails-1.6-win/InstantRails/ruby/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:27:in  
`require’  
script/server:3

Request

Parameters:

{“user”=\>{“name”=\>“goodboy”,  
“password”=\>“badboy”}}

Show session dump

* * *

flash: !map:ActionController::Flash::FlashHash {}

Response

Headers:

{“cookie”=\>[],  
“Cache-Control”=\>“no-cache”}

* * *

And line #174 in mylogin controller happens to be:

@session[:user\_id] = logged\_in\_user.id

Could anyone please guide me with this issue?

Cheers

Cass