bgneal@193: """
gremmie@1: This module contains the models for the weblinks application.
bgneal@193: """
bgneal@204: import datetime
bgneal@204: 
bgneal@1035: from django.contrib.auth.models import User
bgneal@1035: from django.core.urlresolvers import reverse
gremmie@1: from django.db import models
gremmie@1: 
gremmie@1: 
gremmie@1: class Category(models.Model):
bgneal@193:     """Links belong to categories"""
bgneal@193:     title = models.CharField(max_length=64)
bgneal@242:     slug = models.SlugField(max_length=64)
bgneal@193:     description = models.TextField(blank=True)
bgneal@193:     count = models.IntegerField(default=0)
gremmie@1: 
gremmie@1:     def __unicode__(self):
gremmie@1:         return self.title
gremmie@1: 
gremmie@1:     class Meta:
gremmie@1:         verbose_name_plural = 'Categories'
gremmie@1:         ordering = ('title', )
gremmie@1: 
gremmie@1: 
gremmie@1: class PublicLinkManager(models.Manager):
gremmie@1:     """The manager for all public links."""
bgneal@740:     def get_queryset(self):
bgneal@740:         return super(PublicLinkManager, self).get_queryset().filter(
bgneal@191:                 is_public=True).select_related()
gremmie@1: 
gremmie@1: 
bgneal@204: class LinkBase(models.Model):
bgneal@204:     """Abstract model to aggregate common fields of a web link."""
gremmie@1:     category = models.ForeignKey(Category)
gremmie@1:     title = models.CharField(max_length=128)
bgneal@572:     url = models.URLField(db_index=True)
gremmie@1:     description = models.TextField(blank=True)
bgneal@237:     user = models.ForeignKey(User)
bgneal@277:     date_added = models.DateTimeField(db_index=True)
bgneal@277:     update_date = models.DateTimeField(db_index=True, blank=True)
bgneal@204: 
bgneal@204:     class Meta:
bgneal@204:         abstract = True
bgneal@204: 
bgneal@204: 
bgneal@204: class Link(LinkBase):
bgneal@204:     """Model to represent a web link"""
gremmie@1:     hits = models.IntegerField(default=0)
gremmie@1:     is_public = models.BooleanField(default=False, db_index=True)
gremmie@1: 
gremmie@1:     # Managers:
gremmie@1:     objects = models.Manager()
gremmie@1:     public_objects = PublicLinkManager()
gremmie@1: 
bgneal@20:     class Meta:
bgneal@20:         ordering = ('title', )
bgneal@20: 
gremmie@1:     def __unicode__(self):
gremmie@1:         return self.title
gremmie@1: 
bgneal@277:     def save(self, *args, **kwargs):
bgneal@277:         if not self.pk:
bgneal@277:             if not self.date_added:
bgneal@277:                 self.date_added = datetime.datetime.now()
bgneal@277:             self.update_date = self.date_added
bgneal@277:         else:
bgneal@277:             self.update_date = datetime.datetime.now()
bgneal@277: 
bgneal@277:         super(Link, self).save(*args, **kwargs)
bgneal@277: 
bgneal@20:     def get_absolute_url(self):
bgneal@1035:         return reverse('weblinks-link_detail', args=[str(self.pk)])
gremmie@1: 
bgneal@220:     def search_title(self):
bgneal@220:         return self.title
bgneal@220: 
bgneal@220:     def search_summary(self):
bgneal@220:         return self.description
bgneal@220: 
gremmie@1: 
bgneal@204: class PendingLink(LinkBase):
bgneal@204:     """This model represents links that users submit. They must be approved by
bgneal@204:     an admin before they become visible on the site.
bgneal@204:     """
bgneal@204:     class Meta:
bgneal@204:         ordering = ('date_added', )
bgneal@204: 
bgneal@204:     def __unicode__(self):
bgneal@204:         return self.title
bgneal@204: 
bgneal@204:     def save(self, *args, **kwargs):
bgneal@204:         if not self.pk:
bgneal@204:             self.date_added = datetime.datetime.now()
bgneal@277:             self.update_date = self.date_added
bgneal@277:         else:
bgneal@277:             self.update_date = datetime.datetime.now()
bgneal@277: 
bgneal@204:         super(PendingLink, self).save(*args, **kwargs)
bgneal@204: 
bgneal@204: 
gremmie@1: class FlaggedLinkManager(models.Manager):
gremmie@1: 
gremmie@1:     def create(self, link, user):
gremmie@1:         flagged_link = FlaggedLink(link = link, user = user, approved = False)
gremmie@1:         flagged_link.save()
gremmie@1: 
gremmie@1: 
gremmie@1: class FlaggedLink(models.Model):
bgneal@193:     """Model to represent links that have been flagged as broken by users"""
gremmie@1:     link = models.ForeignKey(Link)
bgneal@237:     user = models.ForeignKey(User)
gremmie@1:     date_flagged = models.DateField(auto_now_add = True)
bgneal@675:     approved = models.BooleanField(default = False,
gremmie@1:         help_text = 'Check this and save to remove the referenced link from the database')
gremmie@1: 
gremmie@1:     objects = FlaggedLinkManager()
gremmie@1: 
bgneal@182:     def save(self, *args, **kwargs):
gremmie@1:         if self.approved:
gremmie@1:             self.link.delete()
gremmie@1:             self.delete()
gremmie@1:         else:
bgneal@182:             super(FlaggedLink, self).save(*args, **kwargs)
gremmie@1: 
gremmie@1:     def url(self):
gremmie@1:         return self.link.url
gremmie@1: 
bgneal@165:     def get_link_url(self):
bgneal@165:         return '<a href="%s">Link #%d</a>' % (self.link.get_absolute_url(),
bgneal@165:                 self.link.id)
bgneal@165:     get_link_url.allow_tags = True
bgneal@165:     get_link_url.short_description = "View Link on Site"
bgneal@165: 
gremmie@1:     def __unicode__(self):
gremmie@1:         return self.link.title
gremmie@1: 
gremmie@1:     class Meta:
gremmie@1:         ordering = ('-date_flagged', )