What does save (false) do?

Question

In the following code, what does save(false) do?

 def create_reset_code! @reset = true self.attributes = {:reset_code => Digest::SHA1.hexdigest( Time.now.to_s.split(//).sort_by {rand}.join )} save(false) end 

If it updates credentials, then why do they include false ?

Answer 1

save(false) bypasses checks for the saved model object.

Answer 2

Old version of Rails:

 save(false) 

New version of Rails as per documentation :

 save(validate: false)