NoMethodError application_controller.rb:10

rubyonrails-talk
#1

When I try to set a session variable, in ApplicationController, I get
this:

NoMethodError in ManagementController#index

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: c:/dev/qna
Application Trace | Framework Trace | Full Trace

c:/dev/qna/app/controllers/application_controller.rb:10
c:/dev/qna/app/controllers/management_controller.rb:1

The code is below

class ApplicationController < ActionController::Base
  helper :all # include all helpers, all the time
  protect_from_forgery # See
ActionController::RequestForgeryProtection for details
  session[:current_user_id] = "546"
end

Why I cannot set the session varaible?

#2

rtacconi wrote:

When I try to set a session variable, in ApplicationController, I get
this:

NoMethodError in ManagementController#index

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: c:/dev/qna
Application Trace | Framework Trace | Full Trace

c:/dev/qna/app/controllers/application_controller.rb:10
c:/dev/qna/app/controllers/management_controller.rb:1

The code is below

class ApplicationController < ActionController::Base
  helper :all # include all helpers, all the time
  protect_from_forgery # See
ActionController::RequestForgeryProtection for details
  session[:current_user_id] = "546"
end

Really? That's only about 5 lines of code and the error is being
reported on line 10. What's on line 10?

Why I cannot set the session varaible?

Best,

#3

When I try to set a session variable, in ApplicationController, I get
this:

NoMethodError in ManagementController#index

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: c:/dev/qna
Application Trace | Framework Trace | Full Trace

c:/dev/qna/app/controllers/application_controller.rb:10
c:/dev/qna/app/controllers/management_controller.rb:1

The code is below

class ApplicationController < ActionController::Base
helper :all # include all helpers, all the time
protect_from_forgery # See
ActionController::RequestForgeryProtection for details
session[:current_user_id] = "546"

This is executing when application controller loads, in the context of
the class, (rather than an individual instance of it) which doesn't
make any sense. If you want to play with the session you need to be
doing so from an instance method of a controller (since session itself
is an instance method of controllers)

Fred