from django.db import models
from django.db.models.signals import post_save

import pybb.models

from catalogue.models import Lesson


class Topic(models.Model):
    pybb_topic = models.OneToOneField(pybb.models.Topic, primary_key = True, related_name = 'edumed_topic')
    lesson = models.ForeignKey(Lesson, null = True, blank = True, related_name = 'forum_topics')