CanCan error 'undefined method role?' with Devise

Question

Hey I hope you can help me:

I was going through this tutorial

http://www.tonyamoyal.com/2010/07/28/rails-authentication-with-devise-and-cancan-customizing-devise-controllers/ and I did every step by step.

I wasnt quite sure where to put the role?-method from the tutorial, because it doesnt say where to place it.

Now it gives me this error when I want to sign_up or Sign_in

Many thanks

score 14 · Accepted Answer · answered Jan 14 '11 at 00:54

14

You need to add it in the user model (app/models/user.rb)

class User < ActiveRecord::Base
  has_and_belongs_to_many :roles
  devise :database_authenticatable, :confirmable, :recoverable, :rememberable, :trackable, :validatable

  def role?(role)
      return !!self.roles.find_by_name(role.to_s.camelize)
  end
end

answered Jan 14 '11 at 00:54

Sinetris

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17

@Sinetris thank you sir. I have two questions: (i) what does the double exlamation marks mean "!!" and (ii) if I"m in the user console, then User.roles should come up with an active record collection, is this correct? thank you for your post – BenKoshy Jul 06 '16 at 05:37

score 1 · Answer 2 · answered Jan 04 '12 at 19:50

1

You should refer to this:

https://github.com/ryanb/cancan/wiki/Role-Based-Authorization

I think it'll be really helpful..

answered Jan 04 '12 at 19:50

d34th4ck3r

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CanCan error 'undefined method role?' with Devise

2 Answers2