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1 """
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2 Models for the podcast application.
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3
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4 """
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5 import datetime
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6
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7 from django.db import models
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8
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9
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10 EXPLICIT_CHOICES = (
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11 ('yes', 'Yes'),
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12 ('no', 'No'),
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13 ('clean', 'Clean'),
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14 )
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15
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16
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17 class Channel(models.Model):
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18 """Model to represent the Channel properties"""
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19
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20 title = models.CharField(max_length=255)
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21 link = models.URLField()
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22 language = models.CharField(max_length=16)
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23 copyright = models.CharField(max_length=255)
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24 subtitle = models.CharField(max_length=255)
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25 author = models.CharField(max_length=64)
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26 description = models.CharField(max_length=255)
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27 owner_name = models.CharField(max_length=64)
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28 owner_email = models.EmailField()
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29 image = models.ImageField(upload_to='podcast')
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30 category = models.CharField(max_length=64)
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31 explicit = models.CharField(max_length=8, choices=EXPLICIT_CHOICES)
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32 keywords = models.CharField(max_length=255)
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33
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34 def __unicode__(self):
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35 return self.title
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36
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37
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38 class Item(models.Model):
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39 """Model to represent a channel item"""
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40 channel = models.ForeignKey(Channel)
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41 title = models.CharField(max_length=255)
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42 author = models.CharField(max_length=255)
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43 subtitle = models.CharField(max_length=255)
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44 summary = models.TextField()
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45 enclosure_url = models.URLField()
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46 alt_enclosure_url = models.URLField(blank=True)
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47 enclosure_length = models.IntegerField()
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48 enclosure_type = models.CharField(max_length=32)
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49 guid = models.CharField(max_length=255)
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50 pubdate = models.DateTimeField(db_index=True)
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51 duration = models.CharField(max_length=16)
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52 keywords = models.CharField(max_length=255)
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53 explicit = models.CharField(max_length=8, choices=EXPLICIT_CHOICES)
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54 update_date = models.DateTimeField(db_index=True, blank=True)
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55
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56 @models.permalink
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57 def get_absolute_url(self):
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58 return ('podcast.views.detail', [str(self.id)])
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59
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60 def __unicode__(self):
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61 return self.title
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62
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63 class Meta:
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64 ordering = ('-pubdate', )
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65 verbose_name = 'podcast'
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66 verbose_name_plural = 'podcasts'
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67
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68 def save(self, *args, **kwargs):
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69 if not self.id:
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70 if not self.pubdate:
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71 self.pubdate = datetime.datetime.now()
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72 self.update_date = self.pubdate
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73 else:
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74 self.update_date = datetime.datetime.now()
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75 super(Item, self).save(*args, **kwargs)
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76
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77 def search_title(self):
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78 return "%s: %s" % (self.title, self.subtitle)
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79
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80 def search_summary(self):
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81 return u"\n".join((self.subtitle, self.summary, self.keywords))
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82
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83 def ogp_tags(self):
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84 """
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85 Returns a dict of Open Graph Protocol meta tags.
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86
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87 """
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88 title = "%s: %s; %s" % (self.channel.title, self.title, self.subtitle)
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89 return {
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90 'og:title': title,
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91 'og:type': 'article',
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92 'og:url': self.get_absolute_url(),
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93 'og:description': self.subtitle,
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94 'og:audio': self.enclosure_url,
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95 'og:audio:title': title,
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96 'og:audio:artist': 'Various',
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97 'og:audio:type': self.enclosure_type,
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98 }
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