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Offload more work to database replica

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Raphael Michel
2019-05-05 16:57:54 +02:00
parent 74a6004613
commit 465a5b01b9
7 changed files with 53 additions and 27 deletions
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4
src/pretix/base/models/event.py
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@@ -164,7 +164,7 @@ class EventMixin:
def annotated(cls, qs, channel='web'):
from pretix.base.models import Item, ItemVariation, Quota
sq_active_item = Item.objects.filter_available(channel=channel).filter(
sq_active_item = Item.objects.using(settings.DATABASE_REPLICA).filter_available(channel=channel).filter(
Q(variations__isnull=True)
& Q(quotas__pk=OuterRef('pk'))
).order_by().values_list('quotas__pk').annotate(
@@ -186,7 +186,7 @@ class EventMixin:
Prefetch(
'quotas',
to_attr='active_quotas',
queryset=Quota.objects.annotate(
queryset=Quota.objects.using(settings.DATABASE_REPLICA).annotate(
active_items=Subquery(sq_active_item, output_field=models.TextField()),
active_variations=Subquery(sq_active_variation, output_field=models.TextField()),
).exclude(

3
src/pretix/base/models/items.py
View File

@@ -1290,7 +1290,8 @@ class Quota(LoggedModel):
'cached_availability_state', 'cached_availability_number', 'cached_availability_time',
'cached_availability_paid_orders'
],
clear_cache=False
clear_cache=False,
using='default'
)
if _cache is not None: