Cleans up your model attributes. Strips leading and trailing space, and turns empty strings into nil.

Tested against Rails 4.2 and 5.0.

Travis CI


If you're using Rails with ActiveRecord all you need to do is:

gem "attr_cleaner"


Simply pass a list of attributes that you want to clean:

attr_cleaner :title, :body

Child models will inherit the attribute list from their parent by default.

Other ORMs

AttrCleaner will also work with any ORM that writes attributes via a method called write_attribute.

To get AttrCleaner working with your ORM just include it into your models:

include AttrCleaner::Model


Copyright © 2010 Thomas Drake-Brockman