Undefined method attr_accessible error for User

ruby, ruby-on-rails, ruby-on-rails-4, ruby-on-rails-4.1

Solution

`attr_accessible` is not available for `Rails version 4+`. You would have to go with strong parameters.

With Strong Parameters, attribute whitelisting has been moved to controller level. Remove the `attr_accessible` call from your model.

Here is an example in Rails Guide of how to use Strong Parameters

In your case you can do something like this:

class UsersController < ApplicationController
  ## ...
  def create
    @user = User.new(user_params) ## Invoke user_params method
    if @user.save
      redirect_to @user, notice: 'User was successfully created.' 
    else
      render action: 'new'
    end       
  end
  ## ... 

  private
  ## Strong Parameters 
  def user_params
    params.require(:user).permit(:name, :password_digest, :password, :password_confirmation)
  end
end

You can take a note of @Frederick comment below my answer,

you can still use `attr_accessible` but it has been extracted into the `protected_attributes` gem (although clearly strong parameters is the way forwards)

Problem

I'm trying to create a login of sorts. I created a User scaffold and have this code in my user.rb ``` class User < ActiveRecord::Base attr_accessible :name, :password_digest, :password, :password_confirmation has_secure_password end ``` I keep getting this error ``` undefined method `attr_accessible' for #<Class:0x396bc28> Extracted source (around line #2): 1 2 3 4 5 class User < ActiveRecord::Base attr_accessible :name, :password_digest, :password, :password_confirmation has_secure_password end Rails.root: C:/Sites/web ```

Original source