On Tue, 6 Feb 2007 13:19:37 -0500 "John Siracusa" <[EMAIL PROTECTED]> wrote:
JS> After doing that, you could set prices to undef to cause the
JS> collection to be re-fetched from the database on the next access:
JS> my($price) = grep { $_->region eq 'UK' } $p->prices;
JS> $price->delete;
JS> $p->prices(undef); # forget previously fetched collection
JS> @prices = $p->prices; # collection no longer contains deleted entry
What always annoyed me about this technique is that it looks like
you're losing all the prices. Setting something to undef generally
has that meaning in Perl. I would rather write
$p->forget_prices();
or something like it (the same effect could be achieved behind the
scenes). This should definitely not be a helper function, if it's
used, because the whole point is that the default semantics should not
be confusing to new users. Perhaps I'm the only one of this opinion.
Ted
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