insert_record

# File activerecord/lib/active_record/associations/has_many_through_association.rb, line 55
        def insert_record(record, force = true, validate = true)
          if record.new_record?
            if force
              record.save!
            else
              return false unless record.save(validate)
            end
          end
          through_reflection = @reflection.through_reflection
          klass = through_reflection.klass
          @owner.send(@reflection.through_reflection.name).proxy_target << klass.send(:with_scope, :create => construct_join_attributes(record)) { through_reflection.create_association! }
        end