from django.contrib.sites.models import Site
from django.template import Context, loader
from comment_utils.moderation import CommentModerator

class EmailOwner(CommentModerator):
    """                                                                                                                                                                                                   
    Subclass of ``CommentModerator`` which emails the "owner" of an                                                                                                                                       
    object whenever a new comment is posted on it.                                                                                                                                                        
                                                                                                                                                                                                          
    Assumes that the 'owner' is specified by a ``ForeignKey`` named                                                                                                                                       
    'user'; edit that if your field is named something else.                                                                                                                                              
                                                                                                                                                                                                          
    """
    email_notification = True

    def email(self, comment, content_object):
        t = loader.get_template('comment_email_owner.txt')
        c = Context({ 'comment': comment,
                      'content_object': content_object })
        subject = '[%s] New comment posted on "%s"' % (Site.objects.get_current().name,
                                                       content_object)
        message = t.render(c)
        send_mail(subject, message, settings.DEFAULT_FROM_EMAIL,
                  [content_object.user.email], fail_silently=True)