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comparison gpp/bulletins/models.py @ 54:e249b5f9d180

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#3, #4: clear caches when saving profile, bulletins, and news. Broke up the stuff on the home page for finer control of caching.
author Brian Neal <bgneal@gmail.com>
date Tue, 23 Jun 2009 00:11:00 +0000
parents dbd703f7d63a
children 5c889b587416
comparison
equal deleted inserted replaced
53:f882ac8ce255 54:e249b5f9d180
3 """ 3 """
4 4
5 import datetime 5 import datetime
6 from django.db import models 6 from django.db import models
7 from django.db.models import Q 7 from django.db.models import Q
8 from django.core.cache import cache
8 9
9 10
10 class BulletinManager(models.Manager): 11 class BulletinManager(models.Manager):
11 """Manager for the Bulletin model.""" 12 """Manager for the Bulletin model."""
12 13
13 def get_current(self): 14 def get_current(self):
14 now = datetime.datetime.now() 15 now = datetime.datetime.now()
15 return self.filter( 16 return self.filter(
16 Q(is_enabled=True), 17 Q(is_enabled=True),
17 Q(start_date__lte=now), 18 Q(start_date__lte=now),
18 Q(end_date__isnull=True) | Q(end_date__gte=now)) 19 Q(end_date__isnull=True) | Q(end_date__gte=now))
19 20
20 21
21 class Bulletin(models.Model): 22 class Bulletin(models.Model):
22 """Model to represent site bulletins.""" 23 """Model to represent site bulletins."""
23 title = models.CharField(max_length=200) 24 title = models.CharField(max_length=200)
24 text = models.TextField() 25 text = models.TextField()
25 start_date = models.DateTimeField(db_index=True, 26 start_date = models.DateTimeField(db_index=True,
26 help_text='Start date for when the bulletin will be active.',) 27 help_text='Start date for when the bulletin will be active.',)
27 end_date = models.DateTimeField(blank=True, null=True, db_index=True, 28 end_date = models.DateTimeField(blank=True, null=True, db_index=True,
28 help_text='End date for the bulletin. Leave blank to keep it open-ended.') 29 help_text='End date for the bulletin. Leave blank to keep it open-ended.')
29 is_enabled = models.BooleanField(default=True, db_index=True, 30 is_enabled = models.BooleanField(default=True, db_index=True,
30 help_text='Check to allow the bulletin to be viewed on the site.') 31 help_text='Check to allow the bulletin to be viewed on the site.')
31 32
32 objects = BulletinManager() 33 objects = BulletinManager()
33 34
34 def __unicode__(self): 35 class Meta:
35 return self.title 36 ordering = ('-start_date', )
36 37
37 class Meta: 38 def __unicode__(self):
38 ordering = ('-start_date', ) 39 return self.title
40
41 def save(self, force_insert=False, force_update=False):
42 super(Bulletin, self).save(force_insert, force_update)
43 cache.delete('home_bulletins')
44
45