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Retrieve monthly archives more efficiently

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This commit is contained in:
George Lacey 2022-04-11 10:03:23 +01:00
parent aa4f31df23
commit 3031454682
2 changed files with 16 additions and 14 deletions
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28
borgweb/borg/models/repo.py
View File

@ -1,4 +1,6 @@
from django.db import models
from django.db.models import DateTimeField
from django.db.models.functions import Trunc
from datetime import datetime, timedelta
from ..utility.time import seconds_to_string, subtract_months
from ..utility.data import bytes_to_string, convert_bytes
@ -109,16 +111,16 @@ class Repo(models.Model):
def monthly_archives(self, n_months: int = 12):
archives = []
for month in range(n_months):
current_date = subtract_months(datetime.utcnow(), month)
archive_current_month = self.archive_set.all() \
.filter(start__year=current_date.year,
start__month=current_date.month) \
.order_by('-start')
if len(archive_current_month) > 0:
archives.append(archive_current_month[0])
else:
archives.append(None)
archive_set = self.archive_set.all().order_by('-start')
current_date = datetime.utcnow()
for archive in archive_set:
if len(archives) >= n_months:
break
if archive.start.year == current_date.year and archive.start.month == current_date.month:
archives.append(archive)
current_date = subtract_months(current_date, 1)
return archives[::-1]
def archives_on_dates(self, dates: list):
@ -136,9 +138,9 @@ class Repo(models.Model):
archives = []
for hour in range(n_hours):
current_hour = datetime.utcnow() - timedelta(hours=hour)
archives_hour = self.archive_set.all()\
.filter(start__date=current_hour.date())\
.filter(start__hour=current_hour.hour)\
archives_hour = self.archive_set.all() \
.filter(start__date=current_hour.date()) \
.filter(start__hour=current_hour.hour) \
.order_by('-start')
if len(archives_hour) > 0:
archives.append(archives_hour[0])

2
borgweb/borg/urls.py
View File

@ -10,7 +10,7 @@ urlpatterns = [
path('repo-list.json', cache_page(60)(views.repo_list_json), name='repo list'),
# Repo
path('repo/<str:repo_label>/monthly-size.json', cache_page(3600)(views.repo_monthly_size_json),
path('repo/<str:repo_label>/monthly-size.json', cache_page(60)(views.repo_monthly_size_json),
name='repo size time series'),
path('repo/<str:repo_label>.json', cache_page(60)(views.repo_json), name='repo json'),
path('repo/<str:repo_label>/latest-backup.json', cache_page(60)(views.repo_latest_backup_json), name='repo json'),