rails undefined method `attr_accessible'

Question

I'm trying to add an authentication system into my app and I've run into this error when I run "rake db:migrate":

NoMethodError: undefined method `attr_accessible' for User (call 'User.connection' to establish a connection):Class /Users/liferaymac/Desktop/check/app/models/user.rb:8:in `<class:User>' /Users/liferaymac/Desktop/check/app/models/user.rb:1:in `<top (required)>' /Users/liferaymac/Desktop/check/config/routes.rb:2:in `block in <top (required)>' /Users/liferaymac/Desktop/check/config/routes.rb:1:in `<top (required)>' /Users/liferaymac/Desktop/check/config/environment.rb:5:in `<top (required)>' Tasks: TOP => db:migrate => environment (See full trace by running task with --trace)

Here is a view of my user.rb file, which is my model:

class User < ActiveRecord::Base # Include default devise modules. Others available are: # :confirmable, :lockable, :timeoutable and :omniauthable devise :database_authenticatable, :registerable, :recoverable, :rememberable, :trackable, :validatable # Setup accessible (or protected) attributes for your model attr_accessible :email, :password, :password_confirmation end

And here is my migrate file:

class DeviseCreateUsers < ActiveRecord::Migration def self.up create_table(:users) do |t| t.database_authenticatable :null => false # t.confirmable t.recoverable t.rememberable t.trackable # t.lockable :lock_strategy => :failed_attempts, :unlock_strategy => :both t.timestamps end add_index :users, :email, :unique => true # add_index :users, :confirmation_token, :unique => true add_index :users, :reset_password_token, :unique => true # add_index :users, :unlock_token, :unique => true end def self.down drop_table :users end end # migration create_table(:users) do |t| t.database_authenticatable :null => false # t.confirmable t.recoverable t.rememberable t.trackable # t.lockable :lock_strategy => :failed_attempts, :unlock_strategy => :both t.timestamps end add_index :users, :email, :unique => true # add_index :users, :confirmation_token, :unique => true add_index :users, :reset_password_token, :unique => true # add_index :users, :unlock_token, :unique => true

I'm working from http://railscasts.com/episodes/209-introducing-devise?autoplay=true I also ran bundle install and installed the devise gem already. Any insight will be greatly appreciated.

sealocal · Accepted Answer · 2014-08-26 06:34:42Z

From the Rails Guides:

Rails 4.0 has removed attr_accessible and attr_protected feature in favor of Strong Parameters. You can use the Protected Attributes gem for a smooth upgrade path.

Source: http://guides.rubyonrails.org/upgrading_ruby_on_rails.html

You will probably want to keep the attr_accessible method or you will run into errors when creating users with a sign up form. You can bundle the protected_attributes gem to give you access to those methods in your models.

Protected Attributes: https://github.com/rails/protected_attributes

No problem! That should get you through the RailsCasts video and then you can switch to the Rails 4 way of using strong parameters.

pppp · Accepted Answer · 2014-08-26 03:13:42Z

I realized that in Rails 4+ there is no "attr_accessible". I deleted it out of my model and now it works. (Should have expected this from an old video....)

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