Reusable media (#3131)

Co-authored-by: Martin Gross <gross@rami.io>

src/pretix/base/services/cart.py

@@ -52,6 +52,7 @@ from django_scopes import scopes_disabled
 
 from pretix.base.channels import get_all_sales_channels
 from pretix.base.i18n import language
+from pretix.base.media import MEDIA_TYPES
 from pretix.base.models import (
     CartPosition, Event, InvoiceAddress, Item, ItemVariation, Seat,
     SeatCategoryMapping, Voucher,
@@ -199,6 +200,8 @@ error_messages = {
     'seat_multiple': gettext_lazy('You can not select the same seat multiple times.'),
     'gift_card': gettext_lazy("You entered a gift card instead of a voucher. Gift cards can be entered later on when you're asked for your payment details."),
     'country_blocked': gettext_lazy('One of the selected products is not available in the selected country.'),
+    'media_usage_not_implemented': gettext_lazy('The configuration of this product requires mapping to a physical '
+                                                'medium, which is currently not available online.'),
 }
 
 
@@ -394,6 +397,13 @@ class CartManager:
             if not op.item.is_available() or (op.variation and not op.variation.is_available()):
                 raise CartError(error_messages['unavailable'])
 
+            if op.item.media_policy in (Item.MEDIA_POLICY_NEW, Item.MEDIA_POLICY_REUSE_OR_NEW):
+                mt = MEDIA_TYPES[op.item.media_type]
+                if not mt.medium_created_by_server:
+                    raise CartError(error_messages['media_usage_not_implemented'])
+            elif op.item.media_policy == Item.MEDIA_POLICY_REUSE:
+                raise CartError(error_messages['media_usage_not_implemented'])
+
             if self._sales_channel not in op.item.sales_channels or (op.variation and self._sales_channel not in op.variation.sales_channels):
                 raise CartError(error_messages['unavailable'])
 

src/pretix/base/services/checkin.py

@@ -693,7 +693,7 @@ def _save_answers(op, answers, given_answers):
 def perform_checkin(op: OrderPosition, clist: CheckinList, given_answers: dict, force=False,
                     ignore_unpaid=False, nonce=None, datetime=None, questions_supported=True,
                     user=None, auth=None, canceled_supported=False, type=Checkin.TYPE_ENTRY,
-                    raw_barcode=None, from_revoked_secret=False):
+                    raw_barcode=None, raw_source_type=None, from_revoked_secret=False):
     """
     Create a checkin for this particular order position and check-in list. Fails with CheckInError if the check in is
     not valid at this time.
@@ -870,6 +870,7 @@ def perform_checkin(op: OrderPosition, clist: CheckinList, given_answers: dict,
                 forced=force and (not entry_allowed or from_revoked_secret or force_used),
                 force_sent=force,
                 raw_barcode=raw_barcode,
+                raw_source_type=raw_source_type,
             )
             op.order.log_action('pretix.event.checkin', data={
                 'position': op.id,

src/pretix/base/services/orders.py

@@ -62,6 +62,7 @@ from pretix.api.models import OAuthApplication
 from pretix.base.channels import get_all_sales_channels
 from pretix.base.email import get_email_context
 from pretix.base.i18n import get_language_without_region, language
+from pretix.base.media import MEDIA_TYPES
 from pretix.base.models import (
     CartPosition, Device, Event, GiftCard, Item, ItemVariation, Membership,
     Order, OrderPayment, OrderPosition, Quota, Seat, SeatCategoryMapping, User,
@@ -2911,3 +2912,32 @@ def signal_listener_issue_memberships(sender: Event, order: Order, **kwargs):
     for p in order.positions.all():
         if p.item.grant_membership_type_id:
             create_membership(order.customer, p)
+
+
+@receiver(order_placed, dispatch_uid="pretixbase_order_placed_media")
+@receiver(order_changed, dispatch_uid="pretixbase_order_changed_media")
+@transaction.atomic()
+def signal_listener_issue_media(sender: Event, order: Order, **kwargs):
+    from pretix.base.models import ReusableMedium
+
+    for p in order.positions.all():
+        if p.item.media_policy in (Item.MEDIA_POLICY_NEW, Item.MEDIA_POLICY_REUSE_OR_NEW):
+            mt = MEDIA_TYPES[p.item.media_type]
+            if mt.medium_created_by_server and not p.linked_media.exists():
+                rm = ReusableMedium.objects.create(
+                    organizer=sender.organizer,
+                    type=p.item.media_type,
+                    identifier=mt.generate_identifier(sender.organizer),
+                    active=True,
+                    customer=order.customer,
+                    linked_orderposition=p,
+                )
+                rm.log_action(
+                    'pretix.reusable_medium.created',
+                    data={
+                        'by_order': order.code,
+                        'linked_orderposition': p.pk,
+                        'active': True,
+                        'customer': order.customer_id,
+                    }
+                )