Undefined Method attr_accessible

Question

I am somewhat new to rails and I am trying to create a User login. I went through the tutorial found here. At the end it had me add \"attr_accessible\" for mass assignment

Answer 1

Make sure you are installed gem 'protected_attributes', that this gem is present in your gemfile and run bundle install terminal. Then restart your server.

Answer 2

No mass assignment allowed for Rails 4.1

You will have to try something like this.

class Person
  has_many :pets
  accepts_nested_attributes_for :pets
end

class PeopleController < ActionController::Base
  def create
    Person.create(person_params)
  end

  ...

  private

    def person_params
      # It's mandatory to specify the nested attributes that should be whitelisted.
      # If you use `permit` with just the key that points to the nested attributes hash,
      # it will return an empty hash.
      params.require(:person).permit(:name, :age, pets_attributes: [ :name, :category ])
    end
end

Refer

https://github.com/rails/strong_parameters

Answer 3

No mass assignment allowed for Rails 4.1

instead of having attr_accessible :username, :email, :password, :password_confirmation in your model, use strong parameters. You'll do this in your UsersController:

    def user_params
      params.require(:user).permit(:username, :email, :password, :password_confirmation)
    end

then call the user_params method in your controller actions.