> -----Original Message-----
> From: Herbert Liechti [mailto:[EMAIL PROTECTED]
> Sent: Thursday, March 23, 2006 5:25 AM
> To: datetime@perl.org
> Subject: Re: keeping an object reference within dt
>
> Dave Rolsky wrote:
>
> > On Tue, 21 Mar 2006, Herbert Liechti wrote:
> >
> >> I'm currently implementing a ressource reservation system and I'm
> >> using the DateTime libs for this purpose. My main problem is that
im
> >> generating a set of Datetimes from ressource objects (ie a month
> >> view) which are holding the information about the ressource and its
> >> corresponding reservations.
> >>
> >> The resulting set has no longer an assiociation to the original
> >> ressource object. For reporting purposes it would be nice to have
an
> >> association back to the original object. ie.
> >>
> >> my $dt = DateTime->new ( year => xxx, month => and so on....
> >> refers_to =>
> >> $objectreference);
> >>
> >> and later
> >>
> >> while iterating my set {
> >> my $resObj = dt->getReferer();
> >> }
> >>
> >> any idea how to do that?
> >
> >
> > You could subclass DateTime.pm and just add your field. The
> > DateTime::Set modules should work fine with this.
>
> Dave
>
> Thanks for your response. As far as I see there is no easy way to
> subclass DateTime::Span and DateTime::SpanSet. When I subclass
> DateTime::Span I can't use DateTime::SpanSet anymore. I try to explain
> my problem with the following schema:
>
> ressource address
> | |
> +-----------reservation--------------+
> |
> | calculating spans from various reservations
> |
> 1 SpanSet for a specified time (i.e. 1 month)
> |
> | iterating (lost the context to reservation xy)
> report
>
> A reservation contains the necessary informations for creating
> DateTime::Event::Recurrence objects
>
> Any idea? Thank you and best regards
I think what Dave meant was that you could subclass DateTime and add
your method to that subclass. DateTime::Span and DateTime::SpanSet
should continue to work fine with your subclass, because it is-a
DateTime.
I don't think you need to subclass DateTime::Span and DateTime::SpanSet
at all, unless I don't understand your problem.
Philip
