insert_record

# File activerecord/lib/active_record/associations/has_many_through_association.rb, line 24
      def insert_record(record, validate = true, raise = false)
        ensure_not_nested

        if record.new_record? || record.has_changes_to_save?
          return unless super
        end

        save_through_record(record)

        record
      end