Method: ActiveRecord::AttributeMethods::PrimaryKey#id_was

Defined in:: activerecord/lib/active_record/attribute_methods/primary_key.rb

#id_was ⇒ `Object`

Returns the primary key column’s previous value. If the primary key is composite, returns an array of primary key column previous values.



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# File 'activerecord/lib/active_record/attribute_methods/primary_key.rb', line 46

def id_was
  attribute_was(@primary_key)
end