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Optimize queries for pdf_data=true

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This commit is contained in:
Raphael Michel
2019-02-13 12:07:18 +01:00
parent 6e4af5da64
commit 937cec53f7
2 changed files with 65 additions and 13 deletions
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41
src/pretix/api/views/checkin.py
View File

@@ -16,7 +16,9 @@ from pretix.api.serializers.item import QuestionSerializer
from pretix.api.serializers.order import OrderPositionSerializer
from pretix.api.views import RichOrderingFilter
from pretix.api.views.order import OrderPositionFilter
from pretix.base.models import Checkin, CheckinList, Order, OrderPosition
from pretix.base.models import (
Checkin, CheckinList, Event, Order, OrderPosition,
)
from pretix.base.services.checkin import (
CheckInError, RequiredQuestionsError, perform_checkin,
)
@@ -201,12 +203,39 @@ class CheckinListPositionViewSet(viewsets.ReadOnlyModelViewSet):
subevent=self.checkinlist.subevent
).annotate(
last_checked_in=Subquery(cqs)
).prefetch_related(
Prefetch(
lookup='checkins',
queryset=Checkin.objects.filter(list_id=self.checkinlist.pk)
)
if self.request.query_params.get('pdf_data', 'false') == 'true':
qs = qs.prefetch_related(
Prefetch(
lookup='checkins',
queryset=Checkin.objects.filter(list_id=self.checkinlist.pk)
),
'checkins', 'answers', 'answers__options', 'answers__question',
Prefetch('addons', OrderPosition.objects.select_related('item', 'variation')),
Prefetch('order', Order.objects.select_related('invoice_address').prefetch_related(
Prefetch(
'event',
Event.objects.select_related('organizer')
),
Prefetch(
'positions',
OrderPosition.objects.prefetch_related(
'checkins', 'item', 'variation', 'answers', 'answers__options', 'answers__question',
)
)
))
).select_related(
'item', 'variation', 'item__category', 'addon_to'
)
).select_related('item', 'variation', 'order', 'addon_to')
else:
qs = qs.prefetch_related(
Prefetch(
lookup='checkins',
queryset=Checkin.objects.filter(list_id=self.checkinlist.pk)
),
'answers', 'answers__options', 'answers__question',
Prefetch('addons', OrderPosition.objects.select_related('item', 'variation'))
).select_related('item', 'variation', 'order', 'addon_to', 'order__invoice_address')
if not self.checkinlist.all_products:
qs = qs.filter(item__in=self.checkinlist.limit_products.values_list('id', flat=True))