| From: | tangram [...] swingspan.net (by way of Sam Vilain <sam [...] vilain.net>) |
| Subject: | Re: [Tangram-users] adding children? |
| Date: | Thu, 12 Jun 2003 03:34:23 +1200 |
| To: | bug-Tangram [...] rt.cpan.org |
Some information on the Tangram/5.8.0 bug with T2
Show quoted text
>---
Yes, that's what I thought. But it just doesn't work that way for me.
After I push, if I enumerate the array, $maggie isn't there.
Ah hah! I just recalled something about perl 5.8.0 and so I searched the
list archives for that. I see in November 2002 there was a thread about
5.8.0 and this message:
http://sourceforge.net/mailarchive/forum.php?thread_id=1279426&forum_id=71
37
So there it is. I'm a perl 5.8.0 user, and I can't downgrade my system(s)
just for Tangram. Is there a patch for this to run under 5.8.0? Should
I be looking at another OO-RDMS tool?
Thanks, all, for your help. Tangram's great, so I hope it can be made to
work with modern perl.
Cheers,
S. G.
Quoting Aaron J Mackey <ajm6q@virginia.edu>:
Show quoted text> I typically do it this way:
>
> push @{$homer->{children}}, $maggie;
>
> or, via Class::Tangram:
>
> $homer->children_push($maggie);
>
> (I probably need to send the Class::Tangram patch that provides _push,
> _pop, _shift, _unshift, _splice, _includes and _size methods to iarray
> attreibtues to Sam Vilain, though).
>
> -Aaron
>
> On Wed, 11 Jun 2003 tangram@swingspan.net wrote:
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Show quoted text> > Howdy,
> >
> > I'm a (mostly) happy Tangram user. However, I've run into a little
> > snag.
>
> I'll
>
> > be grateful for any help.
> >
> > Using the example schema, here's what I can't do:
> > 1. I create some people (Bart, Lisa) and add them as children to
> > Homer. 2. All is well, I can list parent/child relationships.
> > 3. Now I want to add a new person (Maggie) as a child of Homer.
> > 4. I create the person (Maggie). All is well.
> > 5. I build an array of all the children (Bart, Lisa, Maggie) called
>
> @children.
>
> > 6. I do this: $homer->{children} = [@children]; All is NOT well.
> >
> > No matter what I do, I can't add to the {children} property, as if
> > it's read-only. If, right after my attempting assignment, I do this:
> > for my $foo (@{$homer->{children}}) { print $foo->{name}; }
> > I only see Bart and Lisa.
> >
> > If I make up a property ($homer->{foobar}) and assign to that, I can
>
> enumerate
>
> > all the children (Bart, Lisa, Maggie) fine. However, that obviously
>
> doesn't
>
> > work because I need to values to be in the {children} property when I
> > call $storage->update($homer);
> >
> > All other assignments/updates work fine. It's just changing this
> > array of objects that's a problem. Am I doing something obviously
> > wrong? Thanks.
> >
> > Cheers,
> > S. G.
> >
> >
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>
> --
> Aaron J Mackey
> Pearson Laboratory
> University of Virginia
> (434) 924-2821
> amackey@virginia.edu
>
>
>
>
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