I believe there's a project called GeoDjango that's dealing with this very
issue, you should check it out:
http://code.djangoproject.com/wiki/GeoDjango
Oscar
On Mon, Jul 14, 2008 at 12:27 AM, MarC <[EMAIL PROTECTED]> wrote:
>
> Hello everybody,
>
> I'm trying to come up with the most django simple friendly way to store
> records in a "tree" kind of database. For instance my records are
> Beverages, Food>Fruits>Apples, Food>Vegetables>Carrots, etc . Ideally
> I'd like to be able to select records that may be categories (Food,
> Beverages or Fruits, Vegetables) as specific products/leafs (Apples,
> Carrots) and be able to fetch parents and sons from each record.
>
> I wonder if any of you have already faced this problem and have any good
> tips to share.
>
> my first tentative is:
> <<
> from django.db import models
>
> # Create your models here.
> class Food(models.Model):
> name = models.CharField(max_length=50);
> parents = models.ForeignKey('Food');
> class Admin:
> pass
> >>
>
> But I'm having trouble to create a root "Food" node with no ForeignKey
> defined or ForeignKey pointed to himself from the admin site.
>
> Any help will be very appreciated! Thanks in advance,
> MarC
>
> >
>
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