139     creation_date = models.DateTimeField()

   139     creation_date = models.DateTimeField()

   140     reply_date = models.DateTimeField()

   140     reply_date = models.DateTimeField()

   141     replied = models.BooleanField(default = False)

   141     replied = models.BooleanField(default = False)

   142     task = models.ForeignKey(Task,related_name = "%(class)s_task", blank = True, null = True)

   142     task = models.ForeignKey(Task,related_name = "%(class)s_task", blank = True, null = True)

   143     assigned_user = models.ForeignKey(User, related_name = "%(class)s_assigned_user", blank = True, null = True)

   143     assigned_user = models.ForeignKey(User, related_name = "%(class)s_assigned_user", blank = True, null = True)

   144 

   145 

   145 class Notification(models.Model):

   146 class Notification(models.Model):

   146 

   147 

   147     to = models.ManyToManyField(User, related_name = "%(class)s_to", blank = False)

   148     to = models.ManyToManyField(User, related_name = "%(class)s_to", blank = False)

   148     is_read = models.BooleanField(default = False)

   149     is_read = models.BooleanField(default = False)