undefined local variable or method `password' for #<User:0x007f8bb1791cd0>

[larryzhao]

After I logged in successfully against rubycas-server, I got this error:

Started GET "/users/sign_in" for 127.0.0.1 at 2012-09-18 23:48:03 +0800
Processing by Devise::CasSessionsController#new as HTML
Redirected to http://cas.mydomain.com/login?service=http%3A%2F%2F127.0.0.1%3A3000%2Fusers%2Fservice
Completed 302 Found in 0ms (ActiveRecord: 0.0ms)


Started GET "/users/service?ticket=ST-1347983282r2B9C399B1EF21A07C2" for 127.0.0.1 at 2012-09-18 23:48:03 +0800
Processing by Devise::CasSessionsController#service as HTML
  Parameters: {"ticket"=>"ST-1347983282r2B9C399B1EF21A07C2"}
  User Load (0.4ms)  SELECT `users`.* FROM `users` WHERE `users`.`username` = 'renli' LIMIT 1
   (0.1ms)  BEGIN
   (0.1ms)  ROLLBACK
Completed 500 Internal Server Error in 874ms

NameError (undefined local variable or method `password' for #<User:0x007f8bb1791cd0>):
  activemodel (3.2.8) lib/active_model/attribute_methods.rb:407:in `method_missing'
  activerecord (3.2.8) lib/active_record/attribute_methods.rb:149:in `method_missing'
  devise (2.1.2) lib/devise/models/validatable.rb:54:in `password_required?'
  activesupport (3.2.8) lib/active_support/callbacks.rb:436:in `_run__3925759518155993811__validate__1547609540827105941__callbacks'
  activesupport (3.2.8) lib/active_support/callbacks.rb:405:in `__run_callback'
  activesupport (3.2.8) lib/active_support/callbacks.rb:385:in `_run_validate_callbacks'

And if I add attr_accessor :password then everything looks OK. But actually since we are authenticating against the CAS system. It's unnecessary to have the password field.

[nbudin]

Does your model include :validatable? If so, override the password_required? method to always return false.

[fabianoalmeida]

Hi @larryzhao. I'm having problems with to use this gem logging in a rubycas-server. Could you show me how did you do your app configuration?

I'm not getting call rubycas-server login page. I configured devise :cas_authenticatable on User model, created username column on users table, but I don't know how to configure my routes.rb to redirect to my rubycas-server login page.

If you @nbudin know answering my doubts, please, show me. Thanks in advance!

Update
I'm using rails 4.

[nbudin]

@fabianoalmeida Did you set cas_base_url in your Devise initializer?

[richardun]

@fabianoalmeida, you'll also want to make sure you are making controllers check authentication in a before_filter. Obviously, this is more on the devise side of the configuration, but it's a possibility for what you're seeing. I usually put mine in the application_controller.rb:

before_filter :authenticate_user!, :unless => :devise_controller?

[fabianoalmeida]

@nbudin yeah, I did it. 😔
@richardun I also did it, but it's not working. Do you suggest another tip to solve it?

I have a silly question... Using this gem I need create a User table, right? Could I ignore it? I mean... Is this really necessary (create User table on database)?

Thanks in advance!

[nbudin]

@fabianoalmeida Yes, you do need a User table, because Devise requires one by design. I can see why you might say it wouldn't be necessary, but for Devise, it is.

If you want to avoid having a User table, I suggest looking into using rubycas-client directly rather than using this gem.

[fabianoalmeida]

Thanks @nbudin! Yeah, you're right. I don't need a User table and I'm not getting put to work this gem with my app. After searching a little more I found this gem: rack-cas. It's simple, few configurations and doesn't need to create a useless table.

Thank you so much for your time and help @nbudin.

[zhyt1985]

In your User Model add "include Devise::Models::DatabaseAuthenticatable"