Sample Model.py

class Event(models.Model):
    # Setup event types
    TYPE_OTHER = 0
    TYPE_FUNERAL = 1
    TYPE_WEDDING = 2
    TYPE_CHOICES = (
        (TYPE_OTHER, 'Other'),
        (TYPE_FUNERAL, 'Funeral'),
        (TYPE_WEDDING, 'Wedding'),
    )
    
    # Core fields
    description = models.TextField()
    location = models.ForeignKey(Location)
    name = models.CharField(max_length=255, help_text='Name of the event.')
    price = models.DecimalField(max_digits=5, decimal_places=2, default=49.99, help_text='Amount that will be charged to users for this event')
    date = models.DateField(default=datetime.date.today, help_text='Date of the event.')
    type = models.IntegerField(choices=TYPE_CHOICES, default=TYPE_FUNERAL, help_text='What type of event is it?')
    videoURL = models.URLField(verify_exists=True, blank=True, help_text='URL for the video on Amazon S3.')
    users = models.ManyToManyField(User, through='Purchase')
    
    #Metadata
    operator = models.CharField(help_text='ID of local operator or videographer who recorded the event.', max_length=32)
    slug = models.SlugField(unique_for_date='date', help_text='Suggested value will be generated automatically from the name. Must be unique.')
    
    class Meta:
        ordering=['-date', 'name']
    
    def __unicode__(self):
        return self.name
    
    def get_absolute_url(self):
        return "/events/%s/%s/" % (self.date.strftime("%Y/%b/%d").lower(), self.slug)