CODEWITHSUNDEEP
ruby-on-railsrubygemscancan
Dinshaw Raje
Dinshaw Raje

Reputation: 953

Facing issues while using cancan gem in rails4

Hi I am using cancan gem for the first time. I have included this in my gem file

gem 'cancancan', '~> 1.10'

then done bundle install and run command rails g cancan:ability through which my ability.rb is generated in which I have given this code

class Ability
  include CanCan::Ability

  def initialize(employee)
    employee ||= Employee.new
    if employee[:role]== 'HR'
      can :manage, :all
    else
      can :read, :all
    end
  end
end

and in my application_Controller given this 

rescue_from CanCan::AccessDenied do |exception|
    flash[:error] = "Access denied."
    redirect_to root_url
 end

Now I have sign in with employee[:role]= 'HR' and when I am going to create departments then it gives me error 

NameError (undefined local variable or method `current_user' for #<DepartmentsController:0xb48a0c0>):
  vendor/ruby/2.1.0/gems/cancancan-1.10.1/lib/cancan/controller_additions.rb:357:in `current_ability'
  vendor/ruby/2.1.0/gems/cancancan-1.10.1/lib/cancan/controller_resource.rb:215:in `current_ability'
  vendor/ruby/2.1.0/gems/cancancan-1.10.1/lib/cancan/controller_resource.rb:98:in `initial_attributes'
  vendor/ruby/2.1.0/gems/cancancan-1.10.1/lib/cancan/controller_resource.rb:91:in `assign_attributes'
  vendor/ruby/2.1.0/gems/cancancan-1.10.1/lib/cancan/controller_resource.rb:86:in `build_resource'
  vendor/ruby/2.1.0/gems/cancancan-1.10.1/lib/cancan/controller_resource.rb:66:in `load_resource_instance'
  vendor/ruby/2.1.0/gems/cancancan-1.10.1/lib/cancan/controller_resource.rb:32:in `load_resource'
  vendor/ruby/2.1.0/gems/cancancan-1.10.1/lib/cancan/controller_resource.rb:25:in `load_and_authorize_resource'
  vendor/ruby/2.1.0/gems/cancancan-1.10.1/lib/cancan/controller_resource.rb:10:in `block in add_before_filter'

enter image description here

Please guide me how to solve this. Thanks in advance.

Upvotes: 1

Views: 109

Answers (1)

Kamesh
Kamesh

Reputation: 1465

You have to override the current_ability method in application_controller.rb

def current_ability
   @current_ability ||= Ability.new(your_current_logged_in_employer_object)
end

Upvotes: 1

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