Dup vs clone while dealing with Active Record: • Dup creates a new record with a blank ID, which will create a new object on the database with a new ID after hitting .save.

user = User.first
user1 = user.dup
user1:
<User id: nil, name: "Rails"> 

• clone creates a new record with the same ID, after hitting save on the clone object this will overwrite the existing data.

user = User.first
user1 = user.clone
<User id: 1, name: "Rails"> 

• If you change some value on the above attribute and put .save it will overwrite the original obj. #dupvsclone #ruby #rails