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Orders API: optimize a common filter query

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This commit is contained in:
Raphael Michel
2021-05-18 09:08:50 +02:00
parent f19a74990f
commit e19d79a2bf
2 changed files with 16 additions and 13 deletions
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2
doc/admin/indexes.rst
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@@ -45,6 +45,8 @@ Here is the currently recommended set of commands::
CREATE INDEX CONCURRENTLY pretix_addidx_order_comment
ON pretixbase_order
USING gin (upper("comment") gin_trgm_ops);
CREATE INDEX CONCURRENTLY pretix_addidx_order_event_date
ON public.pretixbase_order (event_id, datetime DESC);
CREATE INDEX CONCURRENTLY pretix_addidx_orderpos_name
ON pretixbase_orderposition
USING gin (upper("attendee_name_cached") gin_trgm_ops);

27
src/pretix/api/views/order.py
View File

@@ -27,7 +27,7 @@ from decimal import Decimal
import django_filters
import pytz
from django.db import transaction
from django.db.models import Exists, F, OuterRef, Prefetch, Q
from django.db.models import Exists, F, OuterRef, Prefetch, Q, Subquery
from django.db.models.functions import Coalesce, Concat
from django.http import FileResponse, HttpResponse
from django.shortcuts import get_object_or_404
@@ -97,30 +97,31 @@ with scopes_disabled():
model = Order
fields = ['code', 'status', 'email', 'locale', 'testmode', 'require_approval']
@scopes_disabled()
def subevent_after_qs(self, qs, name, value):
qs = qs.annotate(
has_se_after=Exists(
qs = qs.filter(
pk__in=Subquery(
OrderPosition.all.filter(
subevent_id__in=SubEvent.objects.filter(
Q(date_to__gt=value) | Q(date_from__gt=value, date_to__isnull=True), event=OuterRef(OuterRef('event_id'))
Q(date_to__gt=value) | Q(date_from__gt=value, date_to__isnull=True),
event=self.request.event
).values_list('id'),
order_id=OuterRef('pk'),
)
).values_list('id')
)
).filter(has_se_after=True)
)
return qs
def subevent_before_qs(self, qs, name, value):
qs = qs.annotate(
has_se_before=Exists(
qs = qs.filter(
pk__in=Subquery(
OrderPosition.all.filter(
subevent_id__in=SubEvent.objects.filter(
Q(date_from__lt=value), event=OuterRef(OuterRef('event_id'))
Q(date_from__lt=value),
event=self.request.event
).values_list('id'),
order_id=OuterRef('pk'),
)
).values_list('id')
)
).filter(has_se_before=True)
)
return qs
def search_qs(self, qs, name, value):