+
+ def __unicode__(self):
+ return self.key
+
+ @staticmethod
+ def cache_key(key):
+ return 'chunk/%s/%s' % (key, get_language())
+
+ def save(self, *args, **kwargs):
+ ret = super(Chunk, self).save(*args, **kwargs)
+ cache.delete(self.cache_key(self.key))
+ return ret
+
+
+class Attachment(models.Model):
+ key = models.CharField(_('key'), help_text=_('A unique name for this attachment'), primary_key=True, max_length=255)
+ attachment = models.FileField(upload_to='chunks/attachment')
+
+ class Meta:
+ ordering = ('key',)
+ verbose_name, verbose_name_plural = _('attachment'), _('attachments')
+