Question

This is user.rb:

# == Schema Information
#
# Table name: users
#
#  id         :integer         not null, primary key
#  name       :string(255)
#  email      :string(255)
#  created_at :datetime        not null
#  updated_at :datetime        not null

class User < ActiveRecord::Base      
  attr_accessible :name, :email, :password, :password_confirmation, :remember_token
  has_secure_password
  before_save :create_remember_token

  validates :name, presence: true, :length => { maximum: 50 }
  valid_email_regex = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i
  validates :email, :presence   => true,
                    :format     => { with: valid_email_regex },
                    :uniqueness => { case_sensitive: false }

  validates :password,  length: { minimum: 6}

  private

    def create_remember_token
      self.remember_token = SecureRandom.urlsafe_base64
    end
end

I have defined the function create_remember_token, but I noticed that in this file I cannot call it. In Rails’ console it didn’t work either:

1.9.2-p290 :002 > User.first.create_remember_token
  User Load (0.4ms)  SELECT "users".* FROM "users" LIMIT 1
NoMethodError: private method `create_remember_token' called for #<User:0x0000010289cda0>
    from /Users/luke/.rvm/gems/ruby-1.9.2-p290/gems/activemodel-3.2.0/lib/active_model/attribute_methods.rb:404:in `method_missing'
    from /Users/luke/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.2.0/lib/active_record/attribute_methods.rb:129:in `method_missing'
    from (irb):2
    from /Users/luke/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.0/lib/rails/commands/console.rb:47:in `start'
    from /Users/luke/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.0/lib/rails/commands/console.rb:8:in `start'
    from /Users/luke/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.0/lib/rails/commands.rb:41:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>

What am I doing wrong?

Answer 1

Notice the error you’re getting: NoMethodError: private method. Move the method above private and you’ll be able to access it.