models.py

# -*- coding: utf-8 -*-

import os

from django.db import models
from django.utils.translation import ugettext_lazy as _
from django.contrib.auth.models import User
from django.core.files.storage import FileSystemStorage
from django.conf import settings

storage = FileSystemStorage(location=settings.PROJECT_PATH, base_url='/')

def _upload_to_file(file, filename):
    user_id = file.user.id
    path = os.path.join('files', 'uploads')
    path = os.path.join(path, unicode(user_id))
    return os.path.join(path, filename)

class Upload(models.Model):

    title = models.CharField(max_length=255, verbose_name=_(u'Título'))
    file = models.FileField(upload_to=_upload_to_file, verbose_name=_(u'Arquivo'), storage=storage)
    user = models.ForeignKey(User, verbose_name=_(u'Usuário'), related_name='uploads')
    added_on = models.DateTimeField(verbose_name=_(u'Adicionado em'), auto_now_add=True)

    def __unicode__(self):
        return self.title
    
    class Meta:
        ordering = ['title']