insert_record

# File activerecord/lib/active_record/associations/has_many_through_association.rb, line 52
        def insert_record(record, force=true)
          if record.new_record?
            if force
              record.save!
            else
              return false unless record.save
            end
          end
          klass = @reflection.through_reflection.klass
          @owner.send(@reflection.through_reflection.name).proxy_target << klass.send(:with_scope, :create => construct_join_attributes(record)) { klass.create! }
        end