Let's say you have a
class User < ActiveRecord::Base end
Now to update the
last_name of a user with
id = 1, you can write the following code.
user = User.find(1) user.update(first_name: 'Kashif', last_name: 'Liaqat')
update will attempt to update the given attributes in a single transaction, returning
true if successful and
false if not.