ActiveRecord::Extensions 0.5.0 is released! It includes better finder
support for Time objects when operating against DATE or DATETIME
columns.
http://www.continuousthinking.com/2007/3/14/activerecord-extensions-0-5-0-released
to find users who have logged in in the past 15 minutes
User.find :all, :conditions=>{ :logged_in_at_gt =>
Time.now-15.minutes }
Zach