offer = models.ForeignKey(Offer, models.PROTECT, verbose_name=_('offer'))
name = models.CharField(_('name'), max_length=127, blank=True)
email = models.EmailField(_('email'), blank=True, db_index=True)
+ user = models.ForeignKey(settings.AUTH_USER_MODEL, models.SET_NULL, blank=True, null=True)
amount = models.DecimalField(_('amount'), decimal_places=2, max_digits=10)
payed_at = models.DateTimeField(_('payed at'), null=True, blank=True, db_index=True)
perks = models.ManyToManyField(Perk, verbose_name=_('perks'), blank=True)