>I've been searching the web for the past few hours trying to find a simple
>drop-in class or functions to implement "Nested Set Model" or "modified
>preorder tree traversal".
The reason there's not a drop-in module may be that adding the layers
such generality would slow performance. There is a nested set example
for MySQL 5 at
Daevid Vincent wrote:
> I've been searching the web for the past few hours trying to find a simple
> drop-in class or functions to implement "Nested Set Model" or "modified
> preorder tree traversal".
> I've found several tutorials and related links:
> I even found some outdated PEAR DB_NestedSet class from 2003 that seemed way
> to overly complicated. And some other PHP4_Mysql3MPTTA class on PHP Classes
> that was equally complicated and written for ancient PHP4 and mySQL 3!!
> Hasn't anyone else done this before (recently)?
> Did everyone just write their own code every time?
> Anyone have some easy to use code that allows for:
> Add, delete, update/rename, select, show tree, bread crumb display, etc.
> I use PHP 5.0.5 and mySQL 5.0.18, so ideally it would take advantage of all
> the optimizations and bells & whistles of those more modern versions.
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