Module: ActiveRecord::AttributeMethods::PrimaryKey

Defined in:
lib/composite_primary_keys/attribute_methods/primary_key.rb

Instance Method Summary collapse

Instance Method Details

#id_was ⇒ Object

Returns the primary key previous value.



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# File 'lib/composite_primary_keys/attribute_methods/primary_key.rb', line 5

def id_was
  sync_with_transaction_state
  # CPK
  #attribute_was(self.class.primary_key)

  if self.composite?
    self.class.primary_keys.map do |key_attr|
      attribute_changed?(key_attr) ? changed_attributes[key_attr] : self.ids_hash[key_attr]
    end
  else
    attribute_was(self.class.primary_key)
  end

end