Re: How to use primary key as an attribute

Actually I need to use Thread class in other class as a ForeignKey. Here is the whole code:

class Thread(models.Model):
    thread_pk = models.PositiveIntegerField(default=self.pk)

class ThreadParticipant(models.Model):
    thread = models.ForeignKey(Thread)
    user = models.ForeignKey(User)

class Message(models.Model):
    thread = models.ForeignKey(Thread)
    sent_date = models.DateTimeField(default=datetime.now)
    body = models.TextField()
    user = models.ForeignKey(User)

Is there anyway to create a new message without manually creating a Thread. I mean to auto-populate the Thread, whenever I create a new Message?

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