method

id_was

rails latest stable - Class: ActiveRecord::AttributeMethods::PrimaryKey

id_was()

public

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

# File activerecord/lib/active_record/attribute_methods/primary_key.rb, line 65
      def id_was
        if self.class.composite_primary_key?
          @primary_key.map { |col| attribute_was(col) }
        else
          attribute_was(@primary_key)
        end
      end

id_was

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