Backwards-compatible implementation

doc/api/resources/vouchers.rst

@@ -41,6 +41,7 @@ quota                                 integer                    An ID of a quot
 tag                                   string                     A string that is used for grouping vouchers
 comment                               string                     An internal comment on the voucher
 subevent                              integer                    ID of the date inside an event series this voucher belongs to (or ``null``).
+show_hidden_items                     boolean                    Only if set to ``true``, this voucher allows to buy products with the property ``hide_without_voucher``. Defaults to ``true``.
 ===================================== ========================== =======================================================
 
 
@@ -48,6 +49,10 @@ subevent                              integer                    ID of the date
 
    The write operations ``POST``, ``PATCH``, ``PUT``, and ``DELETE`` have been added.
 
+.. versionchanged:: 3.0
+
+   The attribute ``show_hidden_items`` has been added.
+
 Endpoints
 ---------
 

src/pretix/api/serializers/voucher.py

@@ -27,7 +27,7 @@ class VoucherSerializer(I18nAwareModelSerializer):
         model = Voucher
         fields = ('id', 'code', 'max_usages', 'redeemed', 'valid_until', 'block_quota',
                   'allow_ignore_quota', 'price_mode', 'value', 'item', 'variation', 'quota',
-                  'tag', 'comment', 'subevent')
+                  'tag', 'comment', 'subevent', 'show_hidden_items')
         read_only_fields = ('id', 'redeemed')
         list_serializer_class = VoucherListSerializer
 

src/pretix/base/migrations/0125_voucher_show_hidden_items.py

@@ -0,0 +1,26 @@
+# Generated by Django 2.2.1 on 2019-07-07 10:10
+
+from django.db import migrations, models
+
+
+def set_show_hidden_items(apps, schema_editor):
+    Voucher = apps.get_model('pretixbase', 'Voucher')
+    Voucher.objects.filter(quota__isnull=False).update(show_hidden_items=False)
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('pretixbase', '0124_seat_seat_guid'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='voucher',
+            name='show_hidden_items',
+            field=models.BooleanField(default=True),
+        ),
+        migrations.RunPython(
+            set_show_hidden_items,
+            migrations.RunPython.noop,
+        )
+    ]

src/pretix/base/models/items.py

@@ -171,7 +171,7 @@ def filter_available(qs, channel='web', voucher=None, allow_addons=False):
     qs = qs.filter(q)
 
     vouchq = Q(hide_without_voucher=False)
-    if voucher:
+    if voucher and voucher.show_hidden_items:
         if voucher.item_id:
             vouchq = Q(pk=voucher.item_id)
         elif voucher.quota_id:
@@ -342,7 +342,7 @@ class Item(LoggedModel):
         verbose_name=_('This product will only be shown if a voucher matching the product is redeemed.'),
         default=False,
         help_text=_('This product will be hidden from the event page until the user enters a voucher '
-                    'code that is specifically tied to this product (and not via a quota).')
+                    'that unlocks this product.')
     )
     require_bundling = models.BooleanField(
         verbose_name=_('Only sell this product as part of a bundle'),

src/pretix/base/models/vouchers.py

@@ -176,6 +176,10 @@ class Voucher(LoggedModel):
         help_text=_("The text entered in this field will not be visible to the user and is available for your "
                     "convenience.")
     )
+    show_hidden_items = models.BooleanField(
+        verbose_name=_("Shows hidden products that match this voucher"),
+        default=True
+    )
 
     objects = ScopedManager(organizer='event__organizer')
 

src/pretix/base/services/cart.py

@@ -225,7 +225,7 @@ class CartManager:
 
     def _check_item_constraints(self, op):
         if isinstance(op, self.AddOperation) or isinstance(op, self.ExtendOperation):
-            if (op.item.require_voucher or op.item.hide_without_voucher) and op.voucher is None:
+            if (op.item.require_voucher or op.item.hide_without_voucher) and (op.voucher is None or not op.voucher.show_hidden_items):
                 raise CartError(error_messages['voucher_required'])
 
             if not op.item.is_available() or (op.variation and not op.variation.active):

src/pretix/base/services/orders.py

@@ -505,7 +505,7 @@ def _check_positions(event: Event, now_dt: datetime, positions: List[CartPositio
             err = err or error_messages['voucher_required']
             break
 
-        if cp.item.hide_without_voucher and not cp.voucher.applies_to(cp.item.pk, cp.variation.pk):
+        if cp.item.hide_without_voucher and (cp.voucher is None or not cp.voucher.show_hidden_items or not cp.voucher.applies_to(cp.item.pk, cp.variation.pk)):
             delete(cp)
             cp.delete()
             err = error_messages['voucher_required']

src/pretix/control/forms/vouchers.py

@@ -32,7 +32,7 @@ class VoucherForm(I18nModelForm):
         localized_fields = '__all__'
         fields = [
             'code', 'valid_until', 'block_quota', 'allow_ignore_quota', 'value', 'tag',
-            'comment', 'max_usages', 'price_mode', 'subevent'
+            'comment', 'max_usages', 'price_mode', 'subevent', 'show_hidden_items'
         ]
         field_classes = {
             'valid_until': SplitDateTimeField,

src/pretix/control/templates/pretixcontrol/vouchers/bulk.html

@@ -72,6 +72,7 @@
             {% bootstrap_field form.allow_ignore_quota layout="control" %}
             {% bootstrap_field form.tag layout="control" %}
             {% bootstrap_field form.comment layout="control" %}
+            {% bootstrap_field form.show_hidden_items layout="control" %}
         </fieldset>
         {% eventsignal request.event "pretix.control.signals.voucher_form_html" form=form %}
         <div class="form-group submit-group">

src/pretix/control/templates/pretixcontrol/vouchers/detail.html

@@ -74,6 +74,7 @@
                     {% bootstrap_field form.allow_ignore_quota layout="control" %}
                     {% bootstrap_field form.tag layout="control" %}
                     {% bootstrap_field form.comment layout="control" %}
+                    {% bootstrap_field form.show_hidden_items layout="control" %}
                 </fieldset>
                 {% eventsignal request.event "pretix.control.signals.voucher_form_html" form=form %}
             </div>

src/tests/api/test_vouchers.py

@@ -43,6 +43,7 @@ TEST_VOUCHER_RES = {
     'quota': None,
     'tag': 'Foo',
     'comment': '',
+    'show_hidden_items': True,
     'subevent': None
 }
 

src/tests/presale/test_event.py

@@ -435,6 +435,14 @@ class VoucherRedeemItemDisplayTest(EventTestMixin, SoupTest):
         assert "Early-bird" in html.rendered_content
 
     def test_hide_wo_voucher_quota(self):
+        self.item.hide_without_voucher = True
+        self.item.save()
+        html = self.client.get('/%s/%s/redeem?voucher=%s' % (self.orga.slug, self.event.slug, self.v.code))
+        assert "Early-bird" in html.rendered_content
+
+    def test_hide_wo_voucher_quota_dont_show(self):
+        self.v.show_hidden_items = False
+        self.v.save()
         self.item.hide_without_voucher = True
         self.item.save()
         html = self.client.get('/%s/%s/redeem?voucher=%s' % (self.orga.slug, self.event.slug, self.v.code))