ActiveRecord::Dirty feature provides a way to track changes in your object. But how do we add support for an arbitrary attribute?
For example in KB, organization’s custom data (i.e. MB/OA/iSIS subdomains) does not belong to Organization model, it belongs to another custom FieldStringValue model. And I want to have Organization#custom_fields_changed?, Organization.changes… etc “dirty” methods.
The key Rails API is attribute_will_change!(attr). If custom fields are changed, it will call attribute_will_change!(‘custom_fields’) that tell Rails.