model python
from django.db import models
from django.contrib.auth.models import User
class Board(models.Model):
name = models.CharField(max_length=30, unique=True)
description = models.CharField(max_length=100)
class Topic(models.Model):
subject = models.CharField(max_length=255)
last_updated = models.DateTimeField(auto_now_add=True)
board = models.ForeignKey(Board, related_name='topics')
starter = models.ForeignKey(User, related_name='topics')
class Post(models.Model):
message = models.TextField(max_length=4000)
topic = models.ForeignKey(Topic, related_name='posts')
created_at = models.DateTimeField(auto_now_add=True)
updated_at = models.DateTimeField(null=True)
created_by = models.ForeignKey(User, related_name='posts')
updated_by = models.ForeignKey(User, null=True, related_name='+')