gremmie@1: """
gremmie@1: Models for the comments application.
gremmie@1: """
gremmie@1: from django.db import models
gremmie@1: from django.conf import settings
gremmie@1: from django.contrib.contenttypes.models import ContentType
gremmie@1: from django.contrib.contenttypes import generic
gremmie@1: from django.contrib.auth.models import User
bgneal@14: from django.core import urlresolvers
gremmie@1: 
bgneal@128: from core.markup import site_markup
bgneal@124: 
gremmie@1: 
gremmie@1: COMMENT_MAX_LENGTH = getattr(settings, 'COMMENT_MAX_LENGTH', 3000)
gremmie@1: 
gremmie@1: class CommentManager(models.Manager):
gremmie@1:     """Manager for the Comment model class."""
gremmie@1: 
gremmie@1:     def for_object(self, obj, filter_public=True):
gremmie@1:         """QuerySet for all comments for a particular model instance."""
gremmie@1:         ct = ContentType.objects.get_for_model(obj)
gremmie@1:         qs = self.get_query_set().filter(content_type__pk=ct.id,
gremmie@1:                 object_id=obj.id)
gremmie@1:         if filter_public:
gremmie@1:             qs = qs.filter(is_public=True)
gremmie@1:         return qs
gremmie@1: 
gremmie@1: 
gremmie@1: class Comment(models.Model):
gremmie@1:     """My own version of a Comment class that can attach comments to any other model."""
gremmie@1:     content_type = models.ForeignKey(ContentType)
gremmie@1:     object_id = models.PositiveIntegerField()
gremmie@1:     content_object = generic.GenericForeignKey('content_type', 'object_id')
gremmie@1:     user = models.ForeignKey(User)
gremmie@1:     comment = models.TextField(max_length=COMMENT_MAX_LENGTH)
gremmie@1:     html = models.TextField(blank=True)
gremmie@1:     creation_date = models.DateTimeField(auto_now_add=True)
gremmie@1:     ip_address = models.IPAddressField('IP Address')
gremmie@1:     is_public = models.BooleanField(default=True, 
gremmie@1:             help_text='Uncheck this field to make the comment invisible.')
gremmie@1:     is_removed = models.BooleanField(default=False,
gremmie@1:             help_text='Check this field to replace the comment with a ' \
gremmie@1:                     '"This comment has been removed" message')
gremmie@1: 
gremmie@1:     # Attach manager
gremmie@1:     objects = CommentManager()
gremmie@1: 
bgneal@14:     class Meta:
bgneal@14:         ordering = ('creation_date', )
bgneal@14: 
gremmie@1:     def __unicode__(self):
gremmie@1:         return u'%s: %s...' % (self.user.username, self.comment[:50])
gremmie@1: 
bgneal@182:     def save(self, *args, **kwargs):
bgneal@128:         self.html = site_markup(self.comment)
bgneal@182:         super(Comment, self).save(*args, **kwargs)
gremmie@1: 
bgneal@14:     def get_absolute_url(self):
bgneal@14:         return self.get_content_object_url() + ('#c%s' % self.id)
bgneal@14: 
bgneal@14:     def get_content_object_url(self):
bgneal@14:         """
bgneal@14:         Get a URL suitable for redirecting to the content object.
bgneal@14:         """
bgneal@14:         return urlresolvers.reverse(
bgneal@14:             "comments-url-redirect",
bgneal@14:             args=(self.content_type_id, self.object_id)
bgneal@14:         )
bgneal@14: 
bgneal@140:     def not_removed(self):
bgneal@140:         """
bgneal@140:         Returns not self.is_removed. Used on the admin display for
bgneal@140:         "green board" display purposes.
bgneal@140:         """
bgneal@140:         return not self.is_removed
bgneal@140:     not_removed.boolean = True
bgneal@140: 
gremmie@1: 
gremmie@1: class CommentFlag(models.Model):
gremmie@1:     """This model represents a user flagging a comment as inappropriate."""
gremmie@1:     user = models.ForeignKey(User)
gremmie@1:     comment = models.ForeignKey(Comment)
gremmie@1:     flag_date = models.DateTimeField(auto_now_add=True)
gremmie@1: 
gremmie@1:     def __unicode__(self):
bgneal@98:         return u'Comment ID %s flagged by %s' % (self.comment.id, self.user.username)
gremmie@1: 
gremmie@1:     class Meta:
gremmie@1:         ordering = ('flag_date', )
gremmie@1: 
gremmie@1:     def get_comment_url(self):
gremmie@1:         return '<a href="/admin/comments/comment/%s">Comment</a>' % self.comment.id
gremmie@1:     get_comment_url.allow_tags = True
gremmie@1: