Django Model Managers

data/managers.py

from django.db import models

class EntryManager(models.Manager):
    def published_entries(self):
        return self.model.objects.filter(published = True)

--------------------------------------------------------------------------------------------

data/models.py

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

from django.db import models
from blog.data.managers import EntryManager

class Entry(models.Model):
    created = models.DateTimeField(auto_now_add = True)
    updated = models.DateTimeField(auto_now = True)
    title   = models.CharField(max_length = 64)
    text    = models.TextField()
    published = models.BooleanField(db_index = True, default = True)
   
    objects = EntryManager()
   
    def __unicode__(self):
        return u'%s - %s' % (self.title, self.created)

--------------------------------------------------------------------------------------------

data/views.py

from django.shortcuts import render_to_response
from blog.data.models import Entry

def index(request):
    entries = Entry.objects.published_entries().order_by('-id')
    return render_to_response('homepage/index.html', {'entries': entries})