Hello All,
I have a package called Qf::DateTime that does a "use base 'DateTime'".
>From here I've added convenience methods and overridden a few of the
core DateTime methods to my liking.
In doing this I was a bad OO programmer and broke encapsulation. In
Qf::DateTime objects I hung various member variables off of $self, such
as $self->{'_qf_holidays'} to support my custom methods.
This has worked very well for several years now. Unfortunately, due to
the recent necessity to upgrade DateTime and DateTime::TimeZone, the
custom data attached to the object gets stripped after calling
$dt->add() for example. At a glance, it appears this happens at the end
of add_duration() when from_object() is called.
I realize this is my problem since I broke encapsulation, but I'm
wondering if others have dealt with this already. Is there a designated
means for derived classes to add custom instance data? I've perused the
docs, but didn't see anything specific for authors of derived classes.
Thanks,
- Dan Boorstein
