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from django.db import models
class Event(models.Model):
dt = models.DateTimeField()
class MaybeEvent(models.Model):
dt = models.DateTimeField(blank=True, null=True)
class Session(models.Model):
name = models.CharField(max_length=20)
class SessionEvent(models.Model):
dt = models.DateTimeField()
session = models.ForeignKey(Session, related_name='events')
class Timestamp(models.Model):
created = models.DateTimeField(auto_now_add=True)
updated = models.DateTimeField(auto_now=True)
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