models.py

from django.db import models
from django_markdown.models import MarkdownField


from django.utils.text import slugify


class Board(models.Model):
    name = models.CharField(max_length=50)
    created = models.DateTimeField(auto_now_add=True)
    modified = models.DateTimeField(auto_now=True)

    def __str__(self):
        return self.name


class Notice(models.Model):

    title = models.CharField(max_length=100, blank=False, unique=True)
    created = models.DateTimeField(auto_now_add=True)
    body = models.TextField()
    slug = models.SlugField(null=True, blank=True)
    board= models.ManyToManyField(Board)

    body = MarkdownField()

    """returns the title of the notice """
    def __str__(self):
        return self.title

    def save(self, *args, **kwargs):
        if not self.id:
         # Newly created object, so set slug
            self.s = slugify(self.title)

        super(Notice, self).save(*args, **kwargs)