Hello, I'm programing a kind of admin zone for users, where users can
add, manage and delete objects.
I want to do it generic, but I have a big problem now.
Imagine these models:
from django.contrib.auth.models import User
class Library ( models.model ):
library_name = models.CharField(..)
owner = models.ForeignKey( User )
class Book( models.model ):
library = models.ForeignKey( Library )
title = models.CharField(...)
class Image ( models.model ):
front_page = models.ImageField(..)
book = models.ForeignKey( Book )
What I want is a function wich returns the class that have the field
owner, populating the fields tables and where to use it with the extra
method of the object. I have seen fill_table_cache in query.py, but I
don't really understand how it works and if it's suitable for my
needs.
I need it because I want to show only the images that belong to an
user, so I need to make something similar to:
images = Image.objects.filter( book__library_owner = request.user )
I started the recursive function but I almost got crazy and this
morning I deleted everything. As I'd like to do it general, It should
work for diferent models at diferents levels of distance from classes.
i.e.
words = Word.objects.filter( page__book__library__owner =
request.user ) or
libraries =Library.objects.filter( owner = request.user )
Do you have any suggestions?
Thank you very much.
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