The best code re-use is to use already existing code. I have happened to build a website that needed trees, and I've used (and patched) DBIx::Class::Tree::NestedSet. If you like the DBIx::Class approach, there are other implementations too.

Of course you can also get rid of the requirement to map between tree structures and relational database if you are willing to say goodbye to the relational database, and use some of the currently hyped "nosql" document databases.

Perl 6 - the future is here, just unevenly distributed

In reply to Re: RFC: Tree-like applications by moritz
in thread RFC: Tree-like applications by rustic

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