annotate bulletins/models.py @ 661:15dbe0ccda95
Prevent exceptions when viewing downloads in the admin when the file
doesn't exist on the filesystem. This is usually seen in development
but can also happen in production if the file is missing.
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Brian Neal <bgneal@gmail.com> |
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Tue, 14 May 2013 21:02:47 -0500 |
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ee87ea74d46b |
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1 """Models for the bulletins app.
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2 Bulletins allow the sited admins to display and manage important notices for the website.
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3 """
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4
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5 import datetime
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6 from django.db import models
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7 from django.db.models import Q
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8
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9
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10 class BulletinManager(models.Manager):
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11 """Manager for the Bulletin model."""
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12
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13 def get_current(self):
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14 now = datetime.datetime.now()
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15 return self.filter(
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16 Q(is_enabled=True),
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17 Q(start_date__lte=now),
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18 Q(end_date__isnull=True) | Q(end_date__gte=now))
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19
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20
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21 class Bulletin(models.Model):
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22 """Model to represent site bulletins."""
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23 title = models.CharField(max_length=200)
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24 text = models.TextField()
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25 start_date = models.DateTimeField(db_index=True,
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26 help_text='Start date for when the bulletin will be active.',)
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27 end_date = models.DateTimeField(blank=True, null=True, db_index=True,
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28 help_text='End date for the bulletin. Leave blank to keep it open-ended.')
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29 is_enabled = models.BooleanField(default=True, db_index=True,
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30 help_text='Check to allow the bulletin to be viewed on the site.')
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31
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32 objects = BulletinManager()
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33
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34 class Meta:
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35 ordering = ('-start_date', )
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36
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37 def __unicode__(self):
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38 return self.title
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