Posted almost 8 years ago. Visible to the public.

Returning an empty ActiveRecord scope

Returning an empty scope can come in handy, e.g. as a default object. In Rails 4 you can achieve this by calling none Archive on your ActiveRecord model.

Copy
MyModel.none # returns an empty ActiveRecord::Relation object

For older Rails versions you can use the attached initializer to get a none scope.

Does your version of Ruby on Rails still receive security updates?
Rails LTS provides security patches for unsupported versions of Ruby on Rails (2.3, 3.2, 4.2 and 5.2).

Owner of this card:

Avatar
Andreas Robecke
Last edit:
almost 8 years ago
by Henning Koch
Attachments:
none_scope.rb
About this deck:
We are makandra and do test-driven, agile Ruby on Rails software development.
License for source code
Posted by Andreas Robecke to makandra dev
This website uses short-lived cookies to improve usability.
Accept or learn more