Module: Dunlop::AttributeChangesTracking

Extended by:
ActiveSupport::Concern
Included in:
WorkflowStepModel
Defined in:
app/models/dunlop/attribute_changes_tracking.rb

Overview

Add tracking of last changed attributes. Models including this module will be able to track attribute changes like:

record.last_changed[:backup_created] #=> timestamp or nil
record.last_changed.backup_created #=> timestamp or nil

Defined Under Namespace

Modules: ClassMethods Classes: LastChanged

Instance Method Summary collapse

Instance Method Details

#last_changed ⇒ Object 



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# File 'app/models/dunlop/attribute_changes_tracking.rb', line 24

def last_changed
  @last_changed ||= LastChanged.new(self)
end

#update_last_attribute_changed_at ⇒ Object 



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# File 'app/models/dunlop/attribute_changes_tracking.rb', line 13

def update_last_attribute_changed_at
  changed_at = attribute_change_time || Time.now
  (changes.keys - self.class.ignore_attributes_for_last_change).each do |attr|
    if existing = last_attribute_changes.find{|changed| changed.attribute_name == attr }
      existing.update(changed_at: changed_at)
    else
      last_attribute_changes.create(changed_at: changed_at, attribute_name: attr)
    end
  end
end