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Move quota cache from database to redis (#2010)

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Raphael Michel
2021-03-29 09:42:27 +02:00
committed by GitHub
parent a927b47b8b
commit d3748a6194
14 changed files with 148 additions and 164 deletions
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29
src/pretix/control/views/subevents.py
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@@ -6,9 +6,7 @@ from dateutil.rrule import DAILY, MONTHLY, WEEKLY, YEARLY, rrule, rruleset
from django.contrib import messages
from django.core.files import File
from django.db import connections, transaction
from django.db.models import (
Count, F, IntegerField, OuterRef, Prefetch, Subquery, Sum,
)
from django.db.models import Count, F, Prefetch
from django.db.models.functions import Coalesce, TruncDate, TruncTime
from django.forms import inlineformset_factory
from django.http import Http404, HttpResponse, HttpResponseRedirect
@@ -57,20 +55,11 @@ class SubEventQueryMixin:
return self.request.GET
def get_queryset(self, list=False):
sum_tickets_paid = Quota.objects.filter(
subevent=OuterRef('pk')
).order_by().values('subevent').annotate(
s=Sum('cached_availability_paid_orders')
).values(
's'
)
qs = self.request.event.subevents
if list:
qs = qs.annotate(
sum_tickets_paid=Subquery(sum_tickets_paid, output_field=IntegerField())
).prefetch_related(
qs = qs.prefetch_related(
Prefetch('quotas',
queryset=Quota.objects.annotate(s=Coalesce(F('size'), 0)).order_by('-s'),
queryset=self.request.event.quotas.annotate(s=Coalesce(F('size'), 0)).order_by('-s'),
to_attr='first_quotas')
)
if self.filter_form.is_valid():
@@ -108,15 +97,12 @@ class SubEventList(EventPermissionRequiredMixin, PaginationMixin, SubEventQueryM
qa = QuotaAvailability(early_out=False)
for q in quotas:
if q.cached_availability_time is None or q.cached_availability_paid_orders is None:
qa.queue(q)
qa.queue(q)
qa.compute()
for q in quotas:
q.cached_avail = (
qa.results[q] if q in qa.results
else (q.cached_availability_state, q.cached_availability_number)
)
q.cached_avail = qa.results[q]
q.cached_availability_paid_orders = qa.count_paid_orders.get(qa, 0)
if q.size is not None:
q.percent_paid = min(
100,
@@ -1220,8 +1206,7 @@ class SubEventBulkEdit(SubEventQueryMixin, EventPermissionRequiredMixin, FormVie
).values(
'item_list', 'var_list',
*(f.name for f in Quota._meta.fields if f.name not in (
'id', 'event', 'items', 'variations', 'cached_availability_state', 'cached_availability_number',
'cached_availability_paid_orders', 'cached_availability_time', 'closed',
'id', 'event', 'items', 'variations', 'closed',
))
).order_by('subevent_id')