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from datetime import datetime
from django.db import models
from django.utils.safestring import mark_safe
from django.utils.translation import ugettext_lazy as _
from django.template.loader import render_to_string
import feedparser
class RSSContent(models.Model):
title = models.CharField(help_text=_('The rss field is updated several times a day. A change in the title will only be visible on the home page after the next feed update.'), max_length=50)
link = models.URLField(_('link'))
rendered_content = models.TextField(_('Pre-rendered content'), blank=True, editable=False)
last_updated = models.DateTimeField(_('Last updated'), blank=True, null=True)
max_items = models.IntegerField(_('Max. items'), default=5)
class Meta:
abstract = True
verbose_name = _('RSS feed')
verbose_name_plural = _('RSS feeds')
def render(self, **kwargs):
return mark_safe(self.rendered_content)
def cache_content(self):
print u"Getting RSS feed at %s" % (self.link,)
feed = feedparser.parse(self.link)
print u"Pre-rendering content"
self.rendered_content = render_to_string('content/rss/content.html', {
'feed_title': self.title,
'feed_link': feed['feed']['link'],
'entries': feed['entries'][:self.max_items],
})
self.last_updated = datetime.now()
self.save()
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