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[Work-in-Progress] limit coupon use as one per profile (#280) #285

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[Work-in-Progress] limit coupon use as one per profile (#280) #285

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10 changes: 10 additions & 0 deletions saas/models.py
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Original file line number Diff line number Diff line change
Expand Up @@ -812,6 +812,9 @@ def execute_order(self, invoicables, user):
subscription.save()
if cart_item:
cart_item.recorded = True
if (cart_item.coupon and cart_item.coupon.once_per_user and
user not in cart_item.coupon.uses.all()):
cart_item.coupon.uses.add(user)
cart_item.save()

# At this point we have gathered all the ``Organization``
Expand Down Expand Up @@ -3015,6 +3018,11 @@ class Coupon(models.Model):
help_text=_("Number of times the coupon can be used"))
extra = get_extra_field_class()(null=True,
help_text=_("Extra meta data (can be stringify JSON)"))
once_per_user = models.BooleanField(default=False,
help_text=_("Flag indicating if the coupon can be used only once per user"))
uses = models.ManyToManyField(settings.AUTH_USER_MODEL,
related_name='uses', blank=True,
help_text=_("Users who have already redeemed this coupon"))

class Meta:
unique_together = ('organization', 'code')
Expand Down Expand Up @@ -3134,6 +3142,8 @@ def redeem(self, user, coupon_code, created_at=None):
for item in self.get_cart(user):
redeemed = Coupon.objects.active(
item.plan.organization, coupon_code, at_time=at_time).first()
if redeemed and redeemed.once_per_user and user in redeemed.uses.all():
continue
if redeemed and redeemed.is_valid(item.plan, at_time=at_time):
coupon_applied = True
item.coupon = redeemed
Expand Down