Modified Preorder Tree Traversal on the Wiki

[Julio Nobrega]

  I added an article at the Wiki about Modified Preorder Tree
Traversal, a way to store parent/children relationship.

  I don't know how good my english is (I am from Brazil, and speak
portuguese), and I extracted the code from an app I am doing. Could
someone "proof-read" it please, and if any errors are found, please
let me know?

  Many thanks,

--
Julio Nobrega - http://www.inerciasensorial.com.br

Re: Modified Preorder Tree Traversal on the Wiki

[inerte]

Someone forgot the link... :)

http://code.djangoproject.com/wiki/ModifiedPreorderTreeTraversal

Re: Modified Preorder Tree Traversal on the Wiki

[Alex Bondarenko]

>   I added an article at the Wiki about Modified Preorder Tree
> Traversal, a way to store parent/children relationship.
Lots of thanks. I'm just wanted to implemented too (:

Would be nice to see that implemented in model base class.

Re: Modified Preorder Tree Traversal on the Wiki

[Julio Nobrega]

  Yeah, this weekend I will have time to code with Django and I am
planning to decouple the Comment model and functions I did, because I
need it on another project. Look for an updated wiki in a few days if
you want something easier to use...

On 2/1/06, Alex Bondarenko <[EMAIL PROTECTED]> wrote:
> >   I added an article at the Wiki about Modified Preorder Tree
> > Traversal, a way to store parent/children relationship.
> Lots of thanks. I'm just wanted to implemented too (:
>
> Would be nice to see that implemented in model base class.
>


--
Julio Nobrega - http://www.inerciasensorial.com.br

Re: Modified Preorder Tree Traversal on the Wiki

[Luke Plant]

On Wednesday 01 February 2006 12:14, Julio Nobrega wrote:
>   I added an article at the Wiki about Modified Preorder Tree
> Traversal, a way to store parent/children relationship.

You use 'lft' and 'rght' instead of 'left' and 'right' - I don't think 
there is any need to do this.  You can always quote them, and Django 
will do that automatically for you.  And regardless, you can use 
'db_column' so that in your Python code they are 'left' and 'right' 
even if they are different in the DB - see
http://www.djangoproject.com/documentation/model_api/

Regards,

Luke

-- 
I never hated a man enough to give him his diamonds back. (Zsa Zsa 
Gabor)

Luke Plant || L.Plant.98 (at) cantab.net || http://lukeplant.me.uk/