[Catalyst] Catalyst Interface to Tree Structure Pulled from DB.

[Carl Franks]

You might check out Sam Tregar's HTML::PopupTreeSelect and the recent
HTML::PopupTreeSelect::Dynamic which supports AJAX.

http://search.cpan.org/~samtregar/HTML-PopupTreeSelect-1.5/
http://search.cpan.org/~samtregar/HTML-PopupTreeSelect-Dynamic-1.0/

As far as I remember, it has hardcoded HTML and restricts you to
HTML::Template - but the code may be useful, as might the JS library
he uses.

Carl


On 12/12/05, Thomas Hartman <tphyahoo at gmail.com> wrote:
> I would like advice on perlish, and ideally Catalyst-y ways, to create
> a web interface to display interactive tree data structures, pulling
> from an underlying db. The db data underlying the tree would look like
> this (http://msdn.microsoft.com/library/en-us/dnsmart00/html/treelib2.jpg),
> and the web page should have an interface similar to this
> (http://msdn.microsoft.com/library/en-us/dnsmart00/html/treelib1.jpg).
> That was from an ms-access form discussed here
> (http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnsmart00/html/sa00j14.asp).
> The form (some kind of active x thing I think) has a lot of bells and
> whistles: nodes open up when you click on the plus, you can specify
> how many levels the tree should expand to, etc.
>
> I don't expect a web interface to have the kind of flash that the
> access form had, but how close can I get? Is there any hope of
> approaching this kind of prettiness/functionality with a pre-cooked
> catalyst helper? Or some other way to do this with catalyst/perl?
> Maybe even with this newfangled AJAX thing, or something?
>
> If possible, I would like to be able to insert new nodes into the tree
> from the web interface. I do *not* need to be able to rearrange
> existing nodes, or delete nodes/trees. (If there's functionality to do
> this, great, just for my purposes I probably wouldn't be needing
> this.)
>
> If there are no perlish modules/sample apps that already do this, I
> would also appear pointers to solutions that do this in other non-perl
> (but still webby) ways.
>
> PS I have started a bookmark collection on implementing trees with a
> web interface (http://del.icio.us/tphyahoo/tree), and will update this
> with good tips I get from any ensuing discussion.
>
> Initially posted to perlmonks. (http://perlmonks.org/?node_id=515973)
>
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