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1 """
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2 Models for the news application.
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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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bgneal@49
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7 from django.contrib.auth.models import User
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bgneal@54
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8 from django.core.cache import cache
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9 from tagging.fields import TagField
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10
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11
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12 class Category(models.Model):
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13 """News stories belong to categories"""
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14 title = models.CharField(max_length = 64)
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15 icon = models.ImageField(upload_to='news/categories/', blank=True)
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16
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17 def __unicode__(self):
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18 return self.title
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19
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20 def num_stories(self):
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21 return News.objects.filter(category = self.pk).count()
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22
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23 class Meta:
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24 verbose_name_plural = 'Categories'
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25 ordering = ('title', )
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26
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27
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28 class StoryBase(models.Model):
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29 """Abstract model to collect common fields."""
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30 title = models.CharField(max_length=255)
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31 submitter = models.ForeignKey(User)
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32 category = models.ForeignKey(Category)
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33 short_text = models.TextField()
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34 long_text = models.TextField(blank=True)
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35 date_submitted = models.DateTimeField(db_index=True)
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36 allow_comments = models.BooleanField(default=True)
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37 tags = TagField()
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38
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39 class Meta:
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40 abstract = True
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41
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42
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43 class PendingStory(StoryBase):
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44 """Stories submitted by users are held pending admin approval"""
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45
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46 def save(self, *args, **kwargs):
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47 if not self.pk:
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48 self.date_submitted = datetime.datetime.now()
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49
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50 super(PendingStory, self).save(*args, **kwargs)
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51
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52 def __unicode__(self):
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53 return self.title
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54
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55 class Meta:
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56 ordering = ('-date_submitted', )
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57 verbose_name_plural = 'Pending Stories'
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58
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59
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60 class Story(StoryBase):
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61 """Model for news stories"""
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62
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63 @models.permalink
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64 def get_absolute_url(self):
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65 return ('news.views.story', [str(self.id)])
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66
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67 def __unicode__(self):
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68 return self.title
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69
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70 class Meta:
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71 ordering = ('-date_submitted', )
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72 verbose_name_plural = 'Stories'
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73
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74 def can_comment_on(self):
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75 now = datetime.datetime.now()
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76 delta = now - self.date_submitted
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77 return self.allow_comments and delta.days < 30
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78
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79 def save(self, *args, **kwargs):
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80 super(Story, self).save(*args, **kwargs)
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81 cache.delete('home_news')
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82
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