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from django.db import models
from django.contrib.auth.models import User
from django.contrib.sites.models import Site
from django.utils.timezone import now
class News(models.Model):
slug = models.SlugField(max_length=255, unique=True)
author = models.ForeignKey(User, related_name='news_author',
on_delete=models.PROTECT)
postdate = models.DateTimeField("post date", db_index=True)
last_modified = models.DateTimeField(editable=False, db_index=True)
title = models.CharField(max_length=255)
guid = models.CharField(max_length=255, editable=False)
content = models.TextField()
def get_absolute_url(self):
return '/news/%s/' % self.slug
def __unicode__(self):
return self.title
class Meta:
db_table = 'news'
verbose_name_plural = 'news'
get_latest_by = 'postdate'
ordering = ['-postdate']
def set_news_fields(sender, **kwargs):
news = kwargs['instance']
current_time = now()
news.last_modified = current_time
if not news.postdate:
news.postdate = current_time
# http://diveintomark.org/archives/2004/05/28/howto-atom-id
news.guid = 'tag:%s,%s:%s' % (Site.objects.get_current(),
current_time.strftime('%Y-%m-%d'), news.get_absolute_url())
# connect signals needed to keep cache in line with reality
from main.utils import refresh_latest
from django.db.models.signals import pre_save, post_save
post_save.connect(refresh_latest, sender=News,
dispatch_uid="news.models")
pre_save.connect(set_news_fields, sender=News,
dispatch_uid="news.models")
# vim: set ts=4 sw=4 et:
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