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1 '''
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2 This module contains the models for the weblinks application.
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3 '''
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4
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5 from django.db import models
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6 from django.contrib import auth
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7
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8
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9 class Category(models.Model):
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10 '''Links belong to categories'''
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11 title = models.CharField(max_length = 64)
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12 description = models.TextField(blank = True)
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13
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14 def __unicode__(self):
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15 return self.title
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16
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17 def num_links(self):
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18 return Link.public_objects.filter(category = self.pk).count()
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19
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20 class Meta:
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21 verbose_name_plural = 'Categories'
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22 ordering = ('title', )
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23
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24
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25 class PublicLinkManager(models.Manager):
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26 """The manager for all public links."""
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27 def get_query_set(self):
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28 return super(PublicLinkManager, self).get_query_set().filter(
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29 is_public=True).select_related()
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30
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31
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32 class Link(models.Model):
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33 '''Model to represent a web link'''
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34 category = models.ForeignKey(Category)
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35 title = models.CharField(max_length=128)
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36 url = models.URLField(verify_exists=False, db_index=True)
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37 description = models.TextField(blank=True)
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38 user = models.ForeignKey(auth.models.User)
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39 date_added = models.DateField(auto_now_add=True)
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40 hits = models.IntegerField(default=0)
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41 is_public = models.BooleanField(default=False, db_index=True)
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42
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43 # Managers:
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44 objects = models.Manager()
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45 public_objects = PublicLinkManager()
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46
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47 class Meta:
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48 ordering = ('title', )
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49
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50 def __unicode__(self):
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51 return self.title
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52
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53 @models.permalink
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54 def get_absolute_url(self):
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55 return ('weblinks-link_detail', [str(self.id)])
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56
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57
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58 class FlaggedLinkManager(models.Manager):
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59
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60 def create(self, link, user):
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61 flagged_link = FlaggedLink(link = link, user = user, approved = False)
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62 flagged_link.save()
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63
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64
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65 class FlaggedLink(models.Model):
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66 '''Model to represent links that have been flagged as broken by users'''
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67 link = models.ForeignKey(Link)
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68 user = models.ForeignKey(auth.models.User)
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69 date_flagged = models.DateField(auto_now_add = True)
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70 approved = models.BooleanField(default = False,
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71 help_text = 'Check this and save to remove the referenced link from the database')
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72
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73 objects = FlaggedLinkManager()
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74
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75 def save(self, *args, **kwargs):
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76 if self.approved:
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77 self.link.delete()
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78 self.delete()
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79 else:
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80 super(FlaggedLink, self).save(*args, **kwargs)
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81
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82 def url(self):
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83 return self.link.url
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84
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85 def get_link_url(self):
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86 return '<a href="%s">Link #%d</a>' % (self.link.get_absolute_url(),
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87 self.link.id)
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88 get_link_url.allow_tags = True
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89 get_link_url.short_description = "View Link on Site"
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90
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91 def __unicode__(self):
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92 return self.link.title
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93
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94 class Meta:
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95 ordering = ('-date_flagged', )
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