Q:

How to translate attributes of table-less model?

RailsCast #326 ActiveAttr explains how to create table-less models.
How can one translate the attributes as it is explained for table-based attributes in the rails docs?

A:

Instead of going via ActiveRecord (e.g. de.activerecord.attributes.message.subject: Betreff), ActiveModel has to be referenced (e.g. de.activemodel.attributes.message.subject: Betreff).
-- outlined by stephenmurdoch in this comment

