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annotate gpp/weblinks/models.py @ 467:b910cc1460c8

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Add the ability to conditionally add model instances to the search index on update. This is not perfect, as some instances should be deleted from the index if they are updated such that they should not be in the index anymore. Will think about and address that later.
author Brian Neal <bgneal@gmail.com>
date Sun, 24 Jul 2011 18:12:20 +0000
parents d424b8bae71d
children 368d731af479
rev   line source
bgneal@193 1 """
gremmie@1 2 This module contains the models for the weblinks application.
bgneal@193 3 """
bgneal@204 4 import datetime
bgneal@204 5
gremmie@1 6 from django.db import models
bgneal@237 7 from django.contrib.auth.models import User
gremmie@1 8
gremmie@1 9
gremmie@1 10 class Category(models.Model):
bgneal@193 11 """Links belong to categories"""
bgneal@193 12 title = models.CharField(max_length=64)
bgneal@242 13 slug = models.SlugField(max_length=64)
bgneal@193 14 description = models.TextField(blank=True)
bgneal@193 15 count = models.IntegerField(default=0)
gremmie@1 16
gremmie@1 17 def __unicode__(self):
gremmie@1 18 return self.title
gremmie@1 19
gremmie@1 20 class Meta:
gremmie@1 21 verbose_name_plural = 'Categories'
gremmie@1 22 ordering = ('title', )
gremmie@1 23
gremmie@1 24
gremmie@1 25 class PublicLinkManager(models.Manager):
gremmie@1 26 """The manager for all public links."""
gremmie@1 27 def get_query_set(self):
bgneal@191 28 return super(PublicLinkManager, self).get_query_set().filter(
bgneal@191 29 is_public=True).select_related()
gremmie@1 30
gremmie@1 31
bgneal@204 32 class LinkBase(models.Model):
bgneal@204 33 """Abstract model to aggregate common fields of a web link."""
gremmie@1 34 category = models.ForeignKey(Category)
gremmie@1 35 title = models.CharField(max_length=128)
gremmie@1 36 url = models.URLField(verify_exists=False, db_index=True)
gremmie@1 37 description = models.TextField(blank=True)
bgneal@237 38 user = models.ForeignKey(User)
bgneal@277 39 date_added = models.DateTimeField(db_index=True)
bgneal@277 40 update_date = models.DateTimeField(db_index=True, blank=True)
bgneal@204 41
bgneal@204 42 class Meta:
bgneal@204 43 abstract = True
bgneal@204 44
bgneal@204 45
bgneal@204 46 class Link(LinkBase):
bgneal@204 47 """Model to represent a web link"""
gremmie@1 48 hits = models.IntegerField(default=0)
gremmie@1 49 is_public = models.BooleanField(default=False, db_index=True)
gremmie@1 50
gremmie@1 51 # Managers:
gremmie@1 52 objects = models.Manager()
gremmie@1 53 public_objects = PublicLinkManager()
gremmie@1 54
bgneal@20 55 class Meta:
bgneal@20 56 ordering = ('title', )
bgneal@20 57
gremmie@1 58 def __unicode__(self):
gremmie@1 59 return self.title
gremmie@1 60
bgneal@277 61 def save(self, *args, **kwargs):
bgneal@277 62 if not self.pk:
bgneal@277 63 if not self.date_added:
bgneal@277 64 self.date_added = datetime.datetime.now()
bgneal@277 65 self.update_date = self.date_added
bgneal@277 66 else:
bgneal@277 67 self.update_date = datetime.datetime.now()
bgneal@277 68
bgneal@277 69 super(Link, self).save(*args, **kwargs)
bgneal@277 70
bgneal@20 71 @models.permalink
bgneal@20 72 def get_absolute_url(self):
bgneal@20 73 return ('weblinks-link_detail', [str(self.id)])
gremmie@1 74
bgneal@220 75 def search_title(self):
bgneal@220 76 return self.title
bgneal@220 77
bgneal@220 78 def search_summary(self):
bgneal@220 79 return self.description
bgneal@220 80
gremmie@1 81
bgneal@204 82 class PendingLink(LinkBase):
bgneal@204 83 """This model represents links that users submit. They must be approved by
bgneal@204 84 an admin before they become visible on the site.
bgneal@204 85 """
bgneal@204 86 class Meta:
bgneal@204 87 ordering = ('date_added', )
bgneal@204 88
bgneal@204 89 def __unicode__(self):
bgneal@204 90 return self.title
bgneal@204 91
bgneal@204 92 def save(self, *args, **kwargs):
bgneal@204 93 if not self.pk:
bgneal@204 94 self.date_added = datetime.datetime.now()
bgneal@277 95 self.update_date = self.date_added
bgneal@277 96 else:
bgneal@277 97 self.update_date = datetime.datetime.now()
bgneal@277 98
bgneal@204 99 super(PendingLink, self).save(*args, **kwargs)
bgneal@204 100
bgneal@204 101
gremmie@1 102 class FlaggedLinkManager(models.Manager):
gremmie@1 103
gremmie@1 104 def create(self, link, user):
gremmie@1 105 flagged_link = FlaggedLink(link = link, user = user, approved = False)
gremmie@1 106 flagged_link.save()
gremmie@1 107
gremmie@1 108
gremmie@1 109 class FlaggedLink(models.Model):
bgneal@193 110 """Model to represent links that have been flagged as broken by users"""
gremmie@1 111 link = models.ForeignKey(Link)
bgneal@237 112 user = models.ForeignKey(User)
gremmie@1 113 date_flagged = models.DateField(auto_now_add = True)
gremmie@1 114 approved = models.BooleanField(default = False,
gremmie@1 115 help_text = 'Check this and save to remove the referenced link from the database')
gremmie@1 116
gremmie@1 117 objects = FlaggedLinkManager()
gremmie@1 118
bgneal@182 119 def save(self, *args, **kwargs):
gremmie@1 120 if self.approved:
gremmie@1 121 self.link.delete()
gremmie@1 122 self.delete()
gremmie@1 123 else:
bgneal@182 124 super(FlaggedLink, self).save(*args, **kwargs)
gremmie@1 125
gremmie@1 126 def url(self):
gremmie@1 127 return self.link.url
gremmie@1 128
bgneal@165 129 def get_link_url(self):
bgneal@165 130 return '<a href="%s">Link #%d</a>' % (self.link.get_absolute_url(),
bgneal@165 131 self.link.id)
bgneal@165 132 get_link_url.allow_tags = True
bgneal@165 133 get_link_url.short_description = "View Link on Site"
bgneal@165 134
gremmie@1 135 def __unicode__(self):
gremmie@1 136 return self.link.title
gremmie@1 137
gremmie@1 138 class Meta:
gremmie@1 139 ordering = ('-date_flagged', )