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from django.db import models
class BookingNotification(models.Model):
id = models.AutoField(primary_key=True)
type = models.CharField(max_length=100)
booking = models.ForeignKey('booking.Booking', on_delete=models.CASCADE)
submit_time = models.DateTimeField()
submitted = models.BooleanField(default=False)
def get_content(self):
return {
'start': self.booking.start.isoformat(),
'end': self.booking.end.isoformat(),
'user': self.booking.user.username,
'purpose': self.booking.purpose
}
def save(self, *args, **kwargs):
notifications = self.booking.bookingnotification_set.filter(type=self.type)
if notifications.count() > 1:
raise ValueError('Doubled Notification')
return super(BookingNotification, self).save(*args, **kwargs)
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