Django Category and Subcategory searches

Question

I\'m attempting to use a similar Category implementation to this one in the Django Wiki. I\'m wondering what the Django way of doing a search to pull all objects associated wit

Answer 1

Assuming you're using the Category model the same way it's being used on the page you referenced, it would seem that a category 'TV' would be a Category instance with a null parent, and 'Plasma' & 'LCD' would be Category instances with the 'TV' category as a parent.

>>> tv=Category(name="TV")
>>> tv.save()
>>> lcd=Category(name="LCD", parent=tv)
>>> lcd.save()
>>> plasma=Category(name="Plasma", parent=tv)
>>> plasma.save()

Create some items

>>> vizio=Item(name="Vizio", category=lcd)
>>> vizio.save()
>>> plasmatron=Item(name="PlasmaTron", category=plasma)
>>> plasmatron.save()

Get the Item queryset

>>> items=Item.objects.filter(category__parent=tv)

or

>>>> items=Item.objects.filter(category__parent__name='TV')

Does this look like it's in the ballpark of what you need?