ActiveRecord comes with a method
touch
Show archive.org snapshot
which sets the updated_at
timestamp to the current time. Unfortunately it also runs callbacks (and hence validations) on the receiving record, so it is unsuitable if you call it very often.
Use the attached initializer to get a touch_gently
method which updates updated_at
, but does not run callbacks:
User.find(5).touch_gently
The initializer will also give you a method touch_all_gently
which touches a scope of records in a single query (also without running callbacks):
User.active.touch_all_gently
Posted by Henning Koch to makandra dev (2011-03-24 09:43)