[Zope] customizing #tree tag

[Oleg Machulski]

Hello.

It is clear how to create tree hierarchies, based on zope folders
structure, but I could not find examples of displaying as tree 
structures, which are external to Zope.

For example let us have a relational table LIST_NODES with the 
following columns:
(ID_SELF:INTEGER , ID_PARENT:INTEGER , NAME_SELF:VARCHAR)
it is very simple to write SQL methods for retrieving set of 
children of current node, but  syntax for writing 
"expr", "brances", etc. methods is unclear. Could You please 
refer me to some example of displaying custom objects hierarchy 
with the #tree tag.

-- 
Best regards

        Oleg Machulski
----------------------------------------------------
http://www.geocities.com/SiliconValley/Network/7671/
mailto:oleg_machulski@geocities.com