Velocity Reviews - Computer Hardware Reviews

Velocity Reviews > Newsgroups > Programming > Python > Python treeview and recursion: help needed

Reply
Thread Tools

Python treeview and recursion: help needed

 
 
Mailing List SVR
Guest
Posts: n/a
 
      05-23-2008
Hi,

I have a database with the following structure:

id name sublevel

for example

1 Node1 None
2 Node2 1
3 Node3 2
4 Node4 None
5 Node5 1
6 Node6 5
.....
.....


where Node1 and Node4 are treeview's master nodes, Node2 is a subnode of
Node1, Node3 is a subnode of Node2, Node5 is a subnode of Node1 and
Node6 a subnode of Node5 and so on

I need a recursive function to populate treeview and I'm stuck on this
function

I need a list where I have the master node with child node inside and if
a child node as others child nodes, I need thess nodes inside the child
nodes.

Something like this:

[
{"id":1,"name":"Node1","Childs":[{"id:2","name":"Node2","Childs":[{"id":3,"name":"Node3","Childs":[]}]},
{"id":5,
"name":"Node5","Childs":[{"id":6,"name":"Node6","Childs":[]}]}]},{"id":4,"name":"Node4","Childs":[]}
]

I'm using django so I access the data as

all=Data.objects.all()

and I can do something like

for a in all:
print a.id
print a.name

to get database value.

Any help is appreciated,

thanks,
Nicola

 
Reply With Quote
 
 
 
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
how to access the Page from a TreeNode (treeview 's element) : addinga context menu to a treeview abargaddon ASP .Net Building Controls 0 01-17-2008 11:05 AM
Help needed on this 857W config. Repost to be clearer what the problemsare and the help needed sparticle Cisco 3 08-30-2007 07:47 PM
ASP.NET 2.0 TreeView - Programatically Selecting A TreeView Node =?Utf-8?B?VHltYm93?= ASP .Net 2 01-10-2006 03:51 AM
Issue with a custom TreeView derived from the TreeView control Ionutz ASP .Net Web Controls 2 10-23-2005 03:23 PM
TreeView not rendering nodes? Cacheing of a TreeView Per Salmi ASP .Net Web Controls 1 10-15-2003 01:15 PM



Advertisments
 



1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57