How do I save a current date/time for a DATETIME column in rails 3?

Question

I have a DATETIME column called last_profile_update. I need to update it with a current time. I have the following code:

user = User.new
user.last_profile_update = Date.today
user.save

but it does not work.

Answer 1

Perhaps a way to simplify that code:

user = User.create(:last_profile_update => Time.now)

Answer 2

It could be done with

user.touch(:last_profile_update)

Answer 3

Figured it was Time.now

user = User.new
user.last_profile_update = Time.now
user.save