Question

I have user model with use of devise gem, I dont have attr_accessible for any fields still I get the error:

Can’t mass-assign protected attributes

My User class as below

class User < ActiveRecord::Base
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, 
         :token_authenticatable  #, :validatable
end

Answer 1

I also have the same problem, maybe devise does something with attr_accessible. You need to set up attr_accessible in your model to make it work.

class User < ActiveRecord::Base
  devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :trackable, :token_authenticatable #, :validatable`

  # Setup accessible (or protected) attributes for your model
  attr_accessible :first_name, :last_name, :email, :password, :password_confirmation
end

You can checkout these railscasts episodes.

http://railscasts.com/episodes/209-introducing-devise

http://railscasts.com/episodes/210-customizing-devise