Module: DeltaChanges::Extension::ClassMethods

Defined in:
lib/delta_changes.rb

Instance Method Summary collapse

Instance Method Details

#define_virtual_attribute_delta_methods ⇒ Object

Provide for delta tracking of virtual (non-column) attributes.



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# File 'lib/delta_changes.rb', line 25

def define_virtual_attribute_delta_methods
  delta_changes_options[:attributes].each do |tracked_attribute|
    class_eval do
      define_method("#{tracked_attribute}_delta_changed?") do
        attribute_delta_changed?(tracked_attribute)
      end

      define_method("#{tracked_attribute}_delta_change") do
        attribute_delta_change(tracked_attribute)
      end

      define_method("#{tracked_attribute}_delta_was") do
        attribute_delta_was(tracked_attribute)
      end

      define_method("#{tracked_attribute}_delta_will_change!") do |*args|
        attribute_delta_will_change!(tracked_attribute, *args)
      end
    end
  end
end

#delta_changes(options) ⇒ Object 



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# File 'lib/delta_changes.rb', line 17

def delta_changes(options)
  self.delta_changes_options = options
  define_virtual_attribute_delta_methods
end