instantiate

# File activerecord/lib/active_record/base.rb, line 946
      def instantiate(record)
        sti_class = find_sti_class(record[inheritance_column])
        record_id = sti_class.primary_key && record[sti_class.primary_key]

        if ActiveRecord::IdentityMap.enabled? && record_id
          if (column = sti_class.columns_hash[sti_class.primary_key]) && column.number?
            record_id = record_id.to_i
          end
          if instance = IdentityMap.get(sti_class, record_id)
            instance.reinit_with('attributes' => record)
          else
            instance = sti_class.allocate.init_with('attributes' => record)
            IdentityMap.add(instance)
          end
        else
          instance = sti_class.allocate.init_with('attributes' => record)
        end

        instance
      end