addons-server/apps/bandwagon/tasks.py

66 строки
2.0 KiB
Python

import logging
import os
from django.db.models import Count
from celeryutils import task
from easy_thumbnails import processors
from PIL import Image
import amo
from tags.models import AddonTag
from . import cron # Pull in tasks run through cron.
from .models import Collection, CollectionAddon, CollectionVote
log = logging.getLogger('z.task')
@task
def collection_votes(*ids, **kw):
log.info('[%s@%s] Updating collection votes.' %
(len(ids), collection_votes.rate_limit))
using = kw.get('using')
for collection in ids:
v = CollectionVote.objects.filter(collection=collection).using(using)
votes = dict(v.values_list('vote').annotate(Count('vote')))
c = Collection.objects.get(id=collection)
c.upvotes = votes.get(1, 0)
c.downvotes = votes.get(-1, 0)
c.save()
@task
def resize_icon(src, dest):
"""Resizes collection icons to 32x32"""
try:
im = Image.open(src)
im = processors.scale_and_crop(im, (32, 32))
im.save(dest)
os.remove(src)
except Exception, e:
log.error("Error saving collection icon: %s" % e)
@task
def collection_meta(*ids):
log.info('[%s@%s] Updating collection metadata.' %
(len(ids), collection_meta.rate_limit))
qs = (CollectionAddon.objects.filter(collection__in=ids)
.values_list('collection'))
counts = dict(qs.annotate(Count('id')))
persona_counts = dict(qs.filter(addon__type=amo.ADDON_PERSONA)
.annotate(Count('id')))
tags = (AddonTag.objects.values_list('tag').annotate(cnt=Count('tag'))
.filter(cnt__gt=1).order_by('-cnt'))
for c in Collection.objects.filter(id__in=ids):
c.addon_count = counts.get(c.id, 0)
c.all_personas = c.addon_count == persona_counts.get(c.id, None)
addons = list(c.addons.values_list('id', flat=True))
c.top_tags = [t for t, _ in tags.filter(addon__in=addons)[:5]]
c.save()
@task(rate_limit='10/m')
def cron_collection_meta(*addons):
collection_meta(*addons)