Rails - Get old value in before_save

I'm trying to get the old value in the before_save by adding "_was" to my value but it doesn't seem to work.

Here is my code:

before_save :get_old_title

def get_old_title
    puts "old value #{self.title_was} =>  #{self.title}"
  end

Both "title_was" and "title" got the new title just been saved.

Is it possible to get the old value inside before_save ?

Instead of before_save use before_update. It should work now.