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annotate bulletins/models.py @ 1154:4da4e32b314c

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author Brian Neal <bgneal@gmail.com>
date Tue, 27 Dec 2016 10:21:37 -0600
parents ee87ea74d46b
children
rev   line source
gremmie@1 1 """Models for the bulletins app.
gremmie@1 2 Bulletins allow the sited admins to display and manage important notices for the website.
gremmie@1 3 """
gremmie@1 4
gremmie@1 5 import datetime
gremmie@1 6 from django.db import models
gremmie@1 7 from django.db.models import Q
gremmie@1 8
gremmie@1 9
gremmie@1 10 class BulletinManager(models.Manager):
bgneal@54 11 """Manager for the Bulletin model."""
gremmie@1 12
bgneal@54 13 def get_current(self):
bgneal@54 14 now = datetime.datetime.now()
bgneal@54 15 return self.filter(
bgneal@54 16 Q(is_enabled=True),
bgneal@54 17 Q(start_date__lte=now),
bgneal@54 18 Q(end_date__isnull=True) | Q(end_date__gte=now))
gremmie@1 19
gremmie@1 20
gremmie@1 21 class Bulletin(models.Model):
bgneal@54 22 """Model to represent site bulletins."""
bgneal@54 23 title = models.CharField(max_length=200)
bgneal@54 24 text = models.TextField()
bgneal@54 25 start_date = models.DateTimeField(db_index=True,
bgneal@54 26 help_text='Start date for when the bulletin will be active.',)
bgneal@54 27 end_date = models.DateTimeField(blank=True, null=True, db_index=True,
bgneal@54 28 help_text='End date for the bulletin. Leave blank to keep it open-ended.')
bgneal@54 29 is_enabled = models.BooleanField(default=True, db_index=True,
bgneal@54 30 help_text='Check to allow the bulletin to be viewed on the site.')
gremmie@1 31
bgneal@54 32 objects = BulletinManager()
gremmie@1 33
bgneal@54 34 class Meta:
bgneal@54 35 ordering = ('-start_date', )
gremmie@1 36
bgneal@54 37 def __unicode__(self):
bgneal@54 38 return self.title