refactoring

src/pretix/base/payment.py

@@ -336,6 +336,12 @@ class BasePaymentProvider:
                  help_text=_('Users will not be able to choose this payment provider after the given date.'),
                  required=False,
              )),
+            ('_availability_start',
+             RelativeDateField(
+                 label=_('Available from'),
+                 help_text=_('Users will not be able to choose this payment provider before the given date.'),
+                 required=False,
+             )),
             ('_total_min',
              forms.DecimalField(
                  label=_('Minimum order total'),
@@ -539,40 +545,57 @@ class BasePaymentProvider:
 
         return form
 
-    def _is_still_available(self, now_dt=None, cart_id=None, order=None):
+    def _convert_availability_date_to_absolute(self, rel_date, cart_id=None, order=None):
+        if not rel_date:
+            return None
+        # In an event series, we use min() here, which makes it less restrictive than max() and thus makes
+        # it harder to put one self into a situation where no payment provider is available.
+        if self.event.has_subevents and cart_id:
+            dates = [
+                rel_date.datetime(se).date()
+                for se in self.event.subevents.filter(
+                    id__in=CartPosition.objects.filter(
+                        cart_id=cart_id, event=self.event
+                    ).values_list('subevent', flat=True)
+                )
+            ]
+            return min(dates) if dates else None
+        elif self.event.has_subevents and order:
+            dates = [
+                rel_date.datetime(se).date()
+                for se in self.event.subevents.filter(
+                    id__in=order.positions.values_list('subevent', flat=True)
+                )
+            ]
+            return min(dates) if dates else None
+        elif self.event.has_subevents:
+            raise NotImplementedError('Payment provider is not subevent-ready.')
+        else:
+            return rel_date.datetime(self.event).date()
+
+    def _is_available_by_time(self, now_dt=None, cart_id=None, order=None):
         now_dt = now_dt or now()
         tz = ZoneInfo(self.event.settings.timezone)
 
-        availability_date = self.settings.get('_availability_date', as_type=RelativeDateWrapper)
-        if availability_date:
-            if self.event.has_subevents and cart_id:
-                dates = [
-                    availability_date.datetime(se).date()
-                    for se in self.event.subevents.filter(
-                        id__in=CartPosition.objects.filter(
-                            cart_id=cart_id, event=self.event
-                        ).values_list('subevent', flat=True)
-                    )
-                ]
-                availability_date = min(dates) if dates else None
-            elif self.event.has_subevents and order:
-                dates = [
-                    availability_date.datetime(se).date()
-                    for se in self.event.subevents.filter(
-                        id__in=order.positions.values_list('subevent', flat=True)
-                    )
-                ]
-                availability_date = min(dates) if dates else None
-            elif self.event.has_subevents:
-                logger.error('Payment provider is not subevent-ready.')
-                return False
-            else:
-                availability_date = availability_date.datetime(self.event).date()
+        try:
+            availability_start = self._convert_availability_date_to_absolute(
+                self.settings.get('_availability_start', as_type=RelativeDateWrapper), cart_id, order)
 
-            if availability_date:
-                return availability_date >= now_dt.astimezone(tz).date()
+            if availability_start:
+                if availability_start > now_dt.astimezone(tz).date():
+                    return False
 
-        return True
+            availability_end = self._convert_availability_date_to_absolute(
+                self.settings.get('_availability_date', as_type=RelativeDateWrapper), cart_id, order)
+
+            if availability_end:
+                if availability_end < now_dt.astimezone(tz).date():
+                    return False
+
+            return True
+        except NotImplementedError:
+            logger.exception('Unable to check availability')
+            return False
 
     def is_allowed(self, request: HttpRequest, total: Decimal=None) -> bool:
         """
@@ -581,9 +604,9 @@ class BasePaymentProvider:
         user will not be able to select this payment method. This will only be called
         during checkout, not on retrying.
 
-        The default implementation checks for the _availability_date setting to be either unset or in the future
-        and for the _total_max and _total_min requirements to be met. It also checks the ``_restrict_countries``
-        and ``_restrict_to_sales_channels`` setting.
+        The default implementation checks for the ``_availability_date`` setting to be either unset or in the future
+        and for the ``_availability_from``, ``_total_max``, and ``_total_min`` requirements to be met. It also checks
+        the ``_restrict_countries`` and ``_restrict_to_sales_channels`` setting.
 
         :param total: The total value without the payment method fee, after taxes.
 
@@ -592,7 +615,7 @@ class BasePaymentProvider:
            The ``total`` parameter has been added. For backwards compatibility, this method is called again
            without this parameter if it raises a ``TypeError`` on first try.
         """
-        timing = self._is_still_available(cart_id=get_or_create_cart_id(request))
+        timing = self._is_available_by_time(cart_id=get_or_create_cart_id(request))
         pricing = True
 
         if (self.settings._total_max is not None or self.settings._total_min is not None) and total is None:
@@ -776,8 +799,8 @@ class BasePaymentProvider:
         Will be called to check whether it is allowed to change the payment method of
         an order to this one.
 
-        The default implementation checks for the _availability_date setting to be either unset or in the future,
-        as well as for the _total_max, _total_min and _restricted_countries settings.
+        The default implementation checks for the ``_availability_date`` setting to be either unset or in the future,
+        as well as for the ``_availabilty_from``, ``_total_max``, ``_total_min``, and ``_restricted_countries`` settings.
 
         :param order: The order object
         """
@@ -804,7 +827,7 @@ class BasePaymentProvider:
         if order.sales_channel not in self.settings.get('_restrict_to_sales_channels', as_type=list, default=['web']):
             return False
 
-        return self._is_still_available(order=order)
+        return self._is_available_by_time(order=order)
 
     def payment_prepare(self, request: HttpRequest, payment: OrderPayment) -> Union[bool, str]:
         """

src/pretix/plugins/stripe/payment.py

@@ -554,9 +554,6 @@ class StripeMethod(BasePaymentProvider):
         ctx = {'request': request, 'event': self.event, 'settings': self.settings, 'provider': self}
         return template.render(ctx)
 
-    def payment_can_retry(self, payment):
-        return self._is_still_available(order=payment.order)
-
     def _charge_source(self, request, source, payment):
         try:
             params = {}
@@ -1581,9 +1578,6 @@ class StripeSofort(StripeMethod):
             return True
         return False
 
-    def payment_can_retry(self, payment):
-        return payment.state != OrderPayment.PAYMENT_STATE_PENDING and self._is_still_available(order=payment.order)
-
     def payment_presale_render(self, payment: OrderPayment) -> str:
         pi = payment.info_data or {}
         try:

src/tests/base/test_payment.py

@@ -97,7 +97,15 @@ def test_payment_fee_reverse_percent_and_abs_default(event):
 def test_availability_date_available(event):
     prov = DummyPaymentProvider(event)
     prov.settings.set('_availability_date', datetime.date.today() + datetime.timedelta(days=1))
-    result = prov._is_still_available()
+    result = prov._is_available_by_time()
+    assert result
+
+
+@pytest.mark.django_db
+def test_availability_start_available(event):
+    prov = DummyPaymentProvider(event)
+    prov.settings.set('_availability_start', datetime.date.today() - datetime.timedelta(days=1))
+    result = prov._is_available_by_time()
     assert result
 
 
@@ -105,7 +113,15 @@ def test_availability_date_available(event):
 def test_availability_date_not_available(event):
     prov = DummyPaymentProvider(event)
     prov.settings.set('_availability_date', datetime.date.today() - datetime.timedelta(days=1))
-    result = prov._is_still_available()
+    result = prov._is_available_by_time()
+    assert not result
+
+
+@pytest.mark.django_db
+def test_availability_start_not_available(event):
+    prov = DummyPaymentProvider(event)
+    prov.settings.set('_availability_start', datetime.date.today() + datetime.timedelta(days=1))
+    result = prov._is_available_by_time()
     assert not result
 
 
@@ -121,9 +137,26 @@ def test_availability_date_relative(event):
     ))
 
     utc = datetime.timezone.utc
-    assert prov._is_still_available(datetime.datetime(2016, 11, 30, 23, 0, 0, tzinfo=tz).astimezone(utc))
-    assert prov._is_still_available(datetime.datetime(2016, 12, 1, 23, 59, 0, tzinfo=tz).astimezone(utc))
-    assert not prov._is_still_available(datetime.datetime(2016, 12, 2, 0, 0, 1, tzinfo=tz).astimezone(utc))
+    assert prov._is_available_by_time(datetime.datetime(2016, 11, 30, 23, 0, 0, tzinfo=tz).astimezone(utc))
+    assert prov._is_available_by_time(datetime.datetime(2016, 12, 1, 23, 59, 0, tzinfo=tz).astimezone(utc))
+    assert not prov._is_available_by_time(datetime.datetime(2016, 12, 2, 0, 0, 1, tzinfo=tz).astimezone(utc))
+
+
+@pytest.mark.django_db
+def test_availability_start_relative(event):
+    event.settings.set('timezone', 'US/Pacific')
+    tz = ZoneInfo('US/Pacific')
+    event.date_from = datetime.datetime(2016, 12, 3, 12, 0, 0, tzinfo=tz)
+    event.save()
+    prov = DummyPaymentProvider(event)
+    prov.settings.set('_availability_start', RelativeDateWrapper(
+        RelativeDate(days_before=2, time=datetime.time(12, 0), base_date_name='date_from', minutes_before=None)
+    ))
+
+    utc = datetime.timezone.utc
+    assert not prov._is_available_by_time(datetime.datetime(2016, 11, 30, 23, 0, 0, tzinfo=tz).astimezone(utc))
+    assert prov._is_available_by_time(datetime.datetime(2016, 12, 1, 0, 0, tzinfo=tz).astimezone(utc))
+    assert prov._is_available_by_time(datetime.datetime(2016, 12, 2, 0, 0, 1, tzinfo=tz).astimezone(utc))
 
 
 @pytest.mark.django_db
@@ -134,9 +167,9 @@ def test_availability_date_timezones(event):
 
     tz = ZoneInfo('US/Pacific')
     utc = ZoneInfo('UTC')
-    assert prov._is_still_available(datetime.datetime(2016, 11, 30, 23, 0, 0, tzinfo=tz).astimezone(utc))
-    assert prov._is_still_available(datetime.datetime(2016, 12, 1, 23, 59, 0, tzinfo=tz).astimezone(utc))
-    assert not prov._is_still_available(datetime.datetime(2016, 12, 2, 0, 0, 1, tzinfo=tz).astimezone(utc))
+    assert prov._is_available_by_time(datetime.datetime(2016, 11, 30, 23, 0, 0, tzinfo=tz).astimezone(utc))
+    assert prov._is_available_by_time(datetime.datetime(2016, 12, 1, 23, 59, 0, tzinfo=tz).astimezone(utc))
+    assert not prov._is_available_by_time(datetime.datetime(2016, 12, 2, 0, 0, 1, tzinfo=tz).astimezone(utc))
 
 
 @pytest.mark.django_db
@@ -162,12 +195,12 @@ def test_availability_date_cart_relative_subevents(event):
     prov.settings.set('_availability_date', RelativeDateWrapper(
         RelativeDate(days_before=3, time=None, base_date_name='date_from', minutes_before=None)
     ))
-    assert prov._is_still_available(cart_id="123")
+    assert prov._is_available_by_time(cart_id="123")
 
     prov.settings.set('_availability_date', RelativeDateWrapper(
         RelativeDate(days_before=4, time=None, base_date_name='date_from', minutes_before=None)
     ))
-    assert not prov._is_still_available(cart_id="123")
+    assert not prov._is_available_by_time(cart_id="123")
 
 
 @pytest.mark.django_db
@@ -201,9 +234,9 @@ def test_availability_date_order_relative_subevents(event):
     prov.settings.set('_availability_date', RelativeDateWrapper(
         RelativeDate(days_before=3, time=None, base_date_name='date_from', minutes_before=None)
     ))
-    assert prov._is_still_available(order=order)
+    assert prov._is_available_by_time(order=order)
 
     prov.settings.set('_availability_date', RelativeDateWrapper(
         RelativeDate(days_before=4, time=None, base_date_name='date_from', minutes_before=None)
     ))
-    assert not prov._is_still_available(order=order)
+    assert not prov._is_available_by_time(order=order)