module Sequel::Plugins::ColumnsUpdated

  1. lib/sequel/plugins/columns_updated.rb

The columns_updated plugin stores the columns hash used in the UPDATE query when saving the instance, and makes it available in the after_update and after_save hooks via the columns_updated accessor. The data is cleared before returning from save.

Usage:

# Make all model subclasses store the columns hash used for updating
Sequel::Model.plugin :columns_updated

# Make the Album class store the columns hash used for updating
Album.plugin :columns_updated