use time_machine_now for GiftCard, membership and discount validity

src/pretix/base/models/memberships.py

@@ -31,6 +31,7 @@ from i18nfield.fields import I18nCharField
 from pretix.base.models import Customer
 from pretix.base.models.base import LoggedModel
 from pretix.base.models.organizer import Organizer
+from pretix.base.timemachine import time_machine_now
 from pretix.helpers.names import build_name
 
 
@@ -165,13 +166,13 @@ class Membership(models.Model):
 
     def is_valid(self, ev=None, ticket_valid_from=None, valid_from_not_chosen=False):
         if valid_from_not_chosen:
-            return not self.canceled and self.date_end >= now()
+            return not self.canceled and self.date_end >= time_machine_now()
         elif ticket_valid_from:
             dt = ticket_valid_from
         elif ev:
             dt = ev.date_from
         else:
-            dt = now()
+            dt = time_machine_now()
 
         return not self.canceled and dt >= self.date_start and dt <= self.date_end
 

src/pretix/base/payment.py

@@ -67,6 +67,7 @@ from pretix.base.settings import SettingsSandbox
 from pretix.base.signals import register_payment_providers
 from pretix.base.templatetags.money import money_filter
 from pretix.base.templatetags.rich_text import rich_text
+from pretix.base.timemachine import time_machine_now
 from pretix.helpers import OF_SELF
 from pretix.helpers.countries import CachedCountries
 from pretix.helpers.format import format_map
@@ -1441,7 +1442,7 @@ class GiftCardPayment(BasePaymentProvider):
             if not gc.testmode and self.event.testmode:
                 messages.error(request, _("Only test gift cards can be used in test mode."))
                 return
-            if gc.expires and gc.expires < now():
+            if gc.expires and gc.expires < time_machine_now():
                 messages.error(request, _("This gift card is no longer valid."))
                 return
             if gc.value <= Decimal("0.00"):
@@ -1491,7 +1492,7 @@ class GiftCardPayment(BasePaymentProvider):
             if not gc.testmode and payment.order.testmode:
                 messages.error(request, _("Only test gift cards can be used in test mode."))
                 return
-            if gc.expires and gc.expires < now():
+            if gc.expires and gc.expires < time_machine_now():
                 messages.error(request, _("This gift card is no longer valid."))
                 return
             if gc.value <= Decimal("0.00"):
@@ -1539,7 +1540,7 @@ class GiftCardPayment(BasePaymentProvider):
                     raise PaymentException(_("This gift card can only be used in test mode."))
                 if not gc.testmode and payment.order.testmode:
                     raise PaymentException(_("Only test gift cards can be used in test mode."))
-                if gc.expires and gc.expires < now():
+                if gc.expires and gc.expires < time_machine_now():
                     raise PaymentException(_("This gift card is no longer valid."))
 
                 trans = gc.transactions.create(

src/pretix/base/services/pricing.py

@@ -33,6 +33,7 @@ from pretix.base.models import (
 )
 from pretix.base.models.event import Event, SubEvent
 from pretix.base.models.tax import TAXED_ZERO, TaxedPrice, TaxRule
+from pretix.base.timemachine import time_machine_now
 
 
 def get_price(item: Item, variation: ItemVariation = None,
@@ -167,8 +168,8 @@ def apply_discounts(event: Event, sales_channel: str,
     new_prices = {}
 
     discount_qs = event.discounts.filter(
-        Q(available_from__isnull=True) | Q(available_from__lte=now()),
-        Q(available_until__isnull=True) | Q(available_until__gte=now()),
+        Q(available_from__isnull=True) | Q(available_from__lte=time_machine_now()),
+        Q(available_until__isnull=True) | Q(available_until__gte=time_machine_now()),
         sales_channels__contains=sales_channel,
         active=True,
     ).prefetch_related('condition_limit_products', 'benefit_limit_products').order_by('position', 'pk')