Question

In this book:
http://ruby.railstutorial.org/chapters/updating-showing-and-deleting-users#code:current_user_p

The author does the following:

  def current_user
    @current_user ||= User.find_by_remember_token(cookies[:remember_token])
  end

  def current_user?(user)
    user == current_user
  end

my question is when there is a comparison, user == current_user; what is rails comparing? user == @current_user? or user.name == @current_user.name ?

What would hapen if I had the following

  def current_user
    @current_user ||= User.find_by_remember_token(cookies[:remember_token])
    @other_user ||= User.find_by_other_token(cookies[:other_token])
  end

would ser == current_user compare other_user?

Answer 1

The current_user in user == current_user is a call to the current_user method, and in ruby a method returns the last statement that is executed. So in the example, @current_user is being compared to user.

If you add @other_user to the current_user method, then you are correct in thinking that user == current_user would compare user to @other_user.