[Zope] Overlap

[Dieter Maurer]

Ron Baum writes:
 > I am using dtml-in's batch features and noticed that I am getting an overlap of
 > the last item to the top of the next batch.  I changed the overlap attribute to
 > 0 and I still get the overlap.  Is there anything else that I need to do to make
 > this work?
I expect this is a design bug in in's batching.

  The "start" attribute is "1" based, i.e. if you say
  "start=1" the batch starts with the first element.

  However, "next-sequence-start-index" is "0" based.

  This implies, if you use

       "query_start=&dtml-next-sequence-start-index;"

  the next batch will start with the last element from the
  current batch.

You can get rid of this by using

       query_start=<dtml-var "_['next-sequence-start-index'] + 1">


Of course, I think the need to do it in this weird way is
stupid. "in" should define "next-sequence-start-number"
(which would be "1" based)!


Dieter