Problem with undefined variable current_user

Hi everyone,
I’m working through the tutorial at the following link and attempting to
customise/adapt the lessons for my own slightly different application.

Link:
Ruby on Rails Tutorial: Learn Rails by Example | Ruby on Rails 3
Tutorial book and screencasts | by Michael H.
http://ruby.railstutorial.org/ruby-on-rails-tutorial-book

I’m currently trying to work through chapter 10, but having some
problems with the variable ‘current_user’ not being properly defined in
the ‘signed_in’ method. Everything looks fine to me, but as I am
obviously missing something I’d appreciate it if someone with more
experience at debugging could point me in the right direction.

I can sign in with my test users and the exception only occures when
attempting to edit a profile.

Controller and model are attached.
Cheers,
Jen.

Error:

NameError in UsersController#edit

undefined local variable or method `current_user’ for
#UsersController:0x9ffad80

|Rails.root: /home/resource_portal/website|

Application Trace http://localhost:3000/users/1/edit# | Framework
Trace http://localhost:3000/users/1/edit# | Full Trace
http://localhost:3000/users/1/edit#

|app/helpers/sessions_helper.rb:17:in signed_in?' app/controllers/users_controller.rb:91:inauthenticate’
rake-0.8.7/ruby/1.9.1/gems/activesupport-3.0.3/lib/active_support/callbacks.rb:436:in
_run__1056153724__process_action__372525482__callbacks' rake-0.8.7/ruby/1.9.1/gems/activesupport-3.0.3/lib/active_support/callbacks.rb:409:in_run_process_action_callbacks’
rake-0.8.7/ruby/1.9.1/gems/activesupport-3.0.3/lib/active_support/callbacks.rb:93:in
run_callbacks' rake-0.8.7/ruby/1.9.1/gems/actionpack-3.0.3/lib/abstract_controller/callbacks.rb:17:inprocess_action’
rake-0.8.7/ruby/1.9.1/gems/actionpack-3.0.3/lib/action_controller/metal/instrumentation.rb:30:in
block in process_action' rake-0.8.7/ruby/1.9.1/gems/activesupport-3.0.3/lib/active_support/notifications.rb:52:inblock in instrument’
rake-0.8.7/ruby/1.9.1/gems/activesupport-3.0.3/lib/active_support/notifications/instrumenter.rb:21:in
instrument' rake-0.8.7/ruby/1.9.1/gems/activesupport-3.0.3/lib/active_support/notifications.rb:52:ininstrument’
rake-0.8.7/ruby/1.9.1/gems/actionpack-3.0.3/lib/action_controller/metal/instrumentation.rb:29:in
process_action' rake-0.8.7/ruby/1.9.1/gems/actionpack-3.0.3/lib/action_controller/metal/rescue.rb:17:inprocess_action’|

The error message is pretty clear - You haven’t defined a
current_usermethod in your helper.

Check out Listing 9.16 in that tutorial you posted. That’s where it
describes the current_user method you need to add.

http://ruby.railstutorial.org/chapters/sign-in-sign-out#code:current_user_working

Are you including SessionsHelper in you ApplicationController ?

class ApplicationController < ActionController::Base
protect_from_forgery
include SessionsHelper
end

Simon

Hi,
Moved the authenticate method to the helper, after looking at the sample
app code from github. This seems to have solved the problem.

Thanks,
Jen.

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