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Order API: More efficient query for ?subevent_after_qs=

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Raphael Michel
2020-08-26 15:43:22 +02:00
parent 7956074d8b
commit 6e76db40ed
1 changed files with 8 additions and 8 deletions
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16
src/pretix/api/views/order.py
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@@ -4,8 +4,8 @@ from decimal import Decimal
import django_filters
import pytz
from django.db import transaction
from django.db.models import Exists, F, Max, OuterRef, Prefetch, Q
from django.db.models.functions import Coalesce, Concat, Greatest
from django.db.models import Exists, F, OuterRef, Prefetch, Q
from django.db.models.functions import Coalesce, Concat
from django.http import FileResponse, HttpResponse
from django.shortcuts import get_object_or_404
from django.utils.timezone import make_aware, now
@@ -70,13 +70,13 @@ with scopes_disabled():
def subevent_after_qs(self, qs, name, value):
qs = qs.annotate(
max_se_date=Greatest(
Coalesce(Max('all_positions__subevent__date_to'), Max('all_positions__subevent__date_from')),
Max('all_positions__subevent__date_from')
has_se_after=Exists(
OrderPosition.all.filter(
Q(subevent__date_to__gt=value) | Q(subevent__date_from__gt=value, subevent__date_to__isnull=True),
order_id=OuterRef('pk'),
)
)
).filter(
Q(max_se_date__isnull=True) | Q(max_se_date__gte=value)
)
).filter(has_se_after=True)
return qs
def search_qs(self, qs, name, value):