Problems with clone method in Rails 3.2

Question

I tried to clone one of my object today, but it seems that its not working like in documentation.

In my console I'm doing:

u = User.find 1
nu = u.clone
nu.new_record?
   => false 
nu.new?
  NoMethodError: undefined method `new?' for #<User:0x007fbf137b8278>

So it looks like cloned object is just a duplicate, because it has the same Id like old one, but according to documentation, it should be new object?

clone()

Returns a clone of the resource that hasn’t been assigned an id yet and is treated as a new resource.

ryan = Person.find(1)

not_ryan = ryan.clone

not_ryan.new? # => true

Answer 1

According to the docs is deprecated since Rails 2.3.8 and has probably been removed since. So in fact you are calling Object#clone which used to call ActiveRecord::Base#initialize_copy which was removed in Rails 3.0.9.

Use dup instead.